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import base64
import glob
import hashlib
import json
import math
import os
import random
from collections import OrderedDict
from typing import TYPE_CHECKING, List, Dict, Union
import traceback
import cv2
import numpy as np
import torch
from safetensors.torch import load_file, save_file
from tqdm import tqdm
from transformers import CLIPImageProcessor, CLIPVisionModelWithProjection, SiglipImageProcessor
from toolkit.basic import flush, value_map
from toolkit.buckets import get_bucket_for_image_size, get_resolution
from toolkit.config_modules import ControlTypes
from toolkit.metadata import get_meta_for_safetensors
from toolkit.models.pixtral_vision import PixtralVisionImagePreprocessorCompatible
from toolkit.prompt_utils import inject_trigger_into_prompt
from torchvision import transforms
from PIL import Image, ImageFilter, ImageOps
from PIL.ImageOps import exif_transpose
import albumentations as A
from toolkit.print import print_acc
from toolkit.accelerator import get_accelerator
from toolkit.train_tools import get_torch_dtype
if TYPE_CHECKING:
from toolkit.data_loader import AiToolkitDataset
from toolkit.data_transfer_object.data_loader import FileItemDTO
from toolkit.stable_diffusion_model import StableDiffusion
accelerator = get_accelerator()
# def get_associated_caption_from_img_path(img_path):
# https://demo.albumentations.ai/
class Augments:
def __init__(self, **kwargs):
self.method_name = kwargs.get('method', None)
self.params = kwargs.get('params', {})
# convert kwargs enums for cv2
for key, value in self.params.items():
if isinstance(value, str):
# split the string
split_string = value.split('.')
if len(split_string) == 2 and split_string[0] == 'cv2':
if hasattr(cv2, split_string[1]):
self.params[key] = getattr(cv2, split_string[1].upper())
else:
raise ValueError(f"invalid cv2 enum: {split_string[1]}")
transforms_dict = {
'ColorJitter': transforms.ColorJitter(brightness=0.2, contrast=0.2, saturation=0.2, hue=0.03),
'RandomEqualize': transforms.RandomEqualize(p=0.2),
}
img_ext_list = ['.jpg', '.jpeg', '.png', '.webp']
def standardize_images(images):
"""
Standardize the given batch of images using the specified mean and std.
Expects values of 0 - 1
Args:
images (torch.Tensor): A batch of images in the shape of (N, C, H, W),
where N is the number of images, C is the number of channels,
H is the height, and W is the width.
Returns:
torch.Tensor: Standardized images.
"""
mean = [0.48145466, 0.4578275, 0.40821073]
std = [0.26862954, 0.26130258, 0.27577711]
# Define the normalization transform
normalize = transforms.Normalize(mean=mean, std=std)
# Apply normalization to each image in the batch
standardized_images = torch.stack([normalize(img) for img in images])
return standardized_images
def clean_caption(caption):
# this doesnt make any sense anymore in a world that is not based on comma seperated tokens
# # remove any newlines
# caption = caption.replace('\n', ', ')
# # remove new lines for all operating systems
# caption = caption.replace('\r', ', ')
# caption_split = caption.split(',')
# # remove empty strings
# caption_split = [p.strip() for p in caption_split if p.strip()]
# # join back together
# caption = ', '.join(caption_split)
return caption
class CaptionMixin:
def get_caption_item(self: 'AiToolkitDataset', index):
if not hasattr(self, 'caption_type'):
raise Exception('caption_type not found on class instance')
if not hasattr(self, 'file_list'):
raise Exception('file_list not found on class instance')
img_path_or_tuple = self.file_list[index]
if isinstance(img_path_or_tuple, tuple):
img_path = img_path_or_tuple[0] if isinstance(img_path_or_tuple[0], str) else img_path_or_tuple[0].path
# check if either has a prompt file
path_no_ext = os.path.splitext(img_path)[0]
prompt_path = None
ext = self.dataset_config.caption_ext
prompt_path = path_no_ext + ext
else:
img_path = img_path_or_tuple if isinstance(img_path_or_tuple, str) else img_path_or_tuple.path
# see if prompt file exists
path_no_ext = os.path.splitext(img_path)[0]
prompt_path = path_no_ext + ext
# allow folders to have a default prompt
default_prompt_path = os.path.join(os.path.dirname(img_path), 'default.txt')
default_prompt_path_with_ext = os.path.join(os.path.dirname(img_path), 'default' + ext)
if os.path.exists(prompt_path):
with open(prompt_path, 'r', encoding='utf-8') as f:
prompt = f.read()
# check if is json
if prompt_path.endswith('.json'):
prompt = json.loads(prompt)
if 'caption' in prompt:
prompt = prompt['caption']
prompt = clean_caption(prompt)
elif os.path.exists(default_prompt_path_with_ext):
with open(default_prompt_path, 'r', encoding='utf-8') as f:
prompt = f.read()
prompt = clean_caption(prompt)
elif os.path.exists(default_prompt_path):
with open(default_prompt_path, 'r', encoding='utf-8') as f:
prompt = f.read()
prompt = clean_caption(prompt)
else:
prompt = ''
# get default_prompt if it exists on the class instance
if hasattr(self, 'default_prompt'):
prompt = self.default_prompt
if hasattr(self, 'default_caption'):
prompt = self.default_caption
# handle replacements
replacement_list = self.dataset_config.replacements if isinstance(self.dataset_config.replacements, list) else []
for replacement in replacement_list:
from_string, to_string = replacement.split('|')
prompt = prompt.replace(from_string, to_string)
return prompt
if TYPE_CHECKING:
from toolkit.config_modules import DatasetConfig
from toolkit.data_transfer_object.data_loader import FileItemDTO
class Bucket:
def __init__(self, width: int, height: int):
self.width = width
self.height = height
self.file_list_idx: List[int] = []
class BucketsMixin:
def __init__(self):
self.buckets: Dict[str, Bucket] = {}
self.batch_indices: List[List[int]] = []
def build_batch_indices(self: 'AiToolkitDataset'):
self.batch_indices = []
for key, bucket in self.buckets.items():
for start_idx in range(0, len(bucket.file_list_idx), self.batch_size):
end_idx = min(start_idx + self.batch_size, len(bucket.file_list_idx))
batch = bucket.file_list_idx[start_idx:end_idx]
self.batch_indices.append(batch)
def shuffle_buckets(self: 'AiToolkitDataset'):
for key, bucket in self.buckets.items():
random.shuffle(bucket.file_list_idx)
def setup_buckets(self: 'AiToolkitDataset', quiet=False):
if not hasattr(self, 'file_list'):
raise Exception(f'file_list not found on class instance {self.__class__.__name__}')
if not hasattr(self, 'dataset_config'):
raise Exception(f'dataset_config not found on class instance {self.__class__.__name__}')
if self.epoch_num > 0 and self.dataset_config.poi is None:
# no need to rebuild buckets for now
# todo handle random cropping for buckets
return
self.buckets = {} # clear it
config: 'DatasetConfig' = self.dataset_config
resolution = config.resolution
bucket_tolerance = config.bucket_tolerance
file_list: List['FileItemDTO'] = self.file_list
# for file_item in enumerate(file_list):
for idx, file_item in enumerate(file_list):
file_item: 'FileItemDTO' = file_item
width = int(file_item.width * file_item.dataset_config.scale)
height = int(file_item.height * file_item.dataset_config.scale)
did_process_poi = False
if file_item.has_point_of_interest:
# Attempt to process the poi if we can. It wont process if the image is smaller than the resolution
did_process_poi = file_item.setup_poi_bucket()
if self.dataset_config.square_crop:
# we scale first so smallest size matches resolution
scale_factor_x = resolution / width
scale_factor_y = resolution / height
scale_factor = max(scale_factor_x, scale_factor_y)
file_item.scale_to_width = math.ceil(width * scale_factor)
file_item.scale_to_height = math.ceil(height * scale_factor)
file_item.crop_width = resolution
file_item.crop_height = resolution
if width > height:
file_item.crop_x = int(file_item.scale_to_width / 2 - resolution / 2)
file_item.crop_y = 0
else:
file_item.crop_x = 0
file_item.crop_y = int(file_item.scale_to_height / 2 - resolution / 2)
elif not did_process_poi:
bucket_resolution = get_bucket_for_image_size(
width, height,
resolution=resolution,
divisibility=bucket_tolerance
)
# Calculate scale factors for width and height
width_scale_factor = bucket_resolution["width"] / width
height_scale_factor = bucket_resolution["height"] / height
# Use the maximum of the scale factors to ensure both dimensions are scaled above the bucket resolution
max_scale_factor = max(width_scale_factor, height_scale_factor)
# round up
file_item.scale_to_width = int(math.ceil(width * max_scale_factor))
file_item.scale_to_height = int(math.ceil(height * max_scale_factor))
file_item.crop_height = bucket_resolution["height"]
file_item.crop_width = bucket_resolution["width"]
new_width = bucket_resolution["width"]
new_height = bucket_resolution["height"]
if self.dataset_config.random_crop:
# random crop
crop_x = random.randint(0, file_item.scale_to_width - new_width)
crop_y = random.randint(0, file_item.scale_to_height - new_height)
file_item.crop_x = crop_x
file_item.crop_y = crop_y
else:
# do central crop
file_item.crop_x = int((file_item.scale_to_width - new_width) / 2)
file_item.crop_y = int((file_item.scale_to_height - new_height) / 2)
if file_item.crop_y < 0 or file_item.crop_x < 0:
print_acc('debug')
# check if bucket exists, if not, create it
bucket_key = f'{file_item.crop_width}x{file_item.crop_height}'
if bucket_key not in self.buckets:
self.buckets[bucket_key] = Bucket(file_item.crop_width, file_item.crop_height)
self.buckets[bucket_key].file_list_idx.append(idx)
# print the buckets
self.shuffle_buckets()
self.build_batch_indices()
if not quiet:
print_acc(f'Bucket sizes for {self.dataset_path}:')
for key, bucket in self.buckets.items():
print_acc(f'{key}: {len(bucket.file_list_idx)} files')
print_acc(f'{len(self.buckets)} buckets made')
class CaptionProcessingDTOMixin:
def __init__(self: 'FileItemDTO', *args, **kwargs):
if hasattr(super(), '__init__'):
super().__init__(*args, **kwargs)
self.raw_caption: str = None
self.raw_caption_short: str = None
self.caption: str = None
self.caption_short: str = None
dataset_config: DatasetConfig = kwargs.get('dataset_config', None)
self.extra_values: List[float] = dataset_config.extra_values
# todo allow for loading from sd-scripts style dict
def load_caption(self: 'FileItemDTO', caption_dict: Union[dict, None]):
if self.raw_caption is not None:
# we already loaded it
pass
elif caption_dict is not None and self.path in caption_dict and "caption" in caption_dict[self.path]:
self.raw_caption = caption_dict[self.path]["caption"]
if 'caption_short' in caption_dict[self.path]:
self.raw_caption_short = caption_dict[self.path]["caption_short"]
if self.dataset_config.use_short_captions:
self.raw_caption = caption_dict[self.path]["caption_short"]
else:
# see if prompt file exists
path_no_ext = os.path.splitext(self.path)[0]
prompt_ext = self.dataset_config.caption_ext
prompt_path = f"{path_no_ext}.{prompt_ext}"
short_caption = None
if os.path.exists(prompt_path):
with open(prompt_path, 'r', encoding='utf-8') as f:
prompt = f.read()
short_caption = None
if prompt_path.endswith('.json'):
# replace any line endings with commas for \n \r \r\n
prompt = prompt.replace('\r\n', ' ')
prompt = prompt.replace('\n', ' ')
prompt = prompt.replace('\r', ' ')
prompt_json = json.loads(prompt)
if 'caption' in prompt_json:
prompt = prompt_json['caption']
if 'caption_short' in prompt_json:
short_caption = prompt_json['caption_short']
if self.dataset_config.use_short_captions:
prompt = short_caption
if 'extra_values' in prompt_json:
self.extra_values = prompt_json['extra_values']
prompt = clean_caption(prompt)
if short_caption is not None:
short_caption = clean_caption(short_caption)
else:
prompt = ''
if self.dataset_config.default_caption is not None:
prompt = self.dataset_config.default_caption
if short_caption is None:
short_caption = self.dataset_config.default_caption
self.raw_caption = prompt
self.raw_caption_short = short_caption
self.caption = self.get_caption()
if self.raw_caption_short is not None:
self.caption_short = self.get_caption(short_caption=True)
def get_caption(
self: 'FileItemDTO',
trigger=None,
to_replace_list=None,
add_if_not_present=False,
short_caption=False
):
if short_caption:
raw_caption = self.raw_caption_short
else:
raw_caption = self.raw_caption
if raw_caption is None:
raw_caption = ''
# handle dropout
if self.dataset_config.caption_dropout_rate > 0 and not short_caption:
# get a random float form 0 to 1
rand = random.random()
if rand < self.dataset_config.caption_dropout_rate:
# drop the caption
return ''
# get tokens
token_list = raw_caption.split(',')
# trim whitespace
token_list = [x.strip() for x in token_list]
# remove empty strings
token_list = [x for x in token_list if x]
# handle token dropout
if self.dataset_config.token_dropout_rate > 0 and not short_caption:
new_token_list = []
keep_tokens: int = self.dataset_config.keep_tokens
for idx, token in enumerate(token_list):
if idx < keep_tokens:
new_token_list.append(token)
elif self.dataset_config.token_dropout_rate >= 1.0:
# drop the token
pass
else:
# get a random float form 0 to 1
rand = random.random()
if rand > self.dataset_config.token_dropout_rate:
# keep the token
new_token_list.append(token)
token_list = new_token_list
if self.dataset_config.shuffle_tokens:
random.shuffle(token_list)
# join back together
caption = ', '.join(token_list)
# caption = inject_trigger_into_prompt(caption, trigger, to_replace_list, add_if_not_present)
if self.dataset_config.random_triggers:
num_triggers = self.dataset_config.random_triggers_max
if num_triggers > 1:
num_triggers = random.randint(0, num_triggers)
if num_triggers > 0:
triggers = random.sample(self.dataset_config.random_triggers, num_triggers)
caption = caption + ', ' + ', '.join(triggers)
# add random triggers
# for i in range(num_triggers):
# # fastest method
# trigger = self.dataset_config.random_triggers[int(random.random() * (len(self.dataset_config.random_triggers)))]
# caption = caption + ', ' + trigger
if self.dataset_config.shuffle_tokens:
# shuffle again
token_list = caption.split(',')
# trim whitespace
token_list = [x.strip() for x in token_list]
# remove empty strings
token_list = [x for x in token_list if x]
random.shuffle(token_list)
caption = ', '.join(token_list)
return caption
class ImageProcessingDTOMixin:
def load_and_process_video(
self: 'FileItemDTO',
transform: Union[None, transforms.Compose],
only_load_latents=False
):
if self.is_latent_cached:
raise Exception('Latent caching not supported for videos')
if self.augments is not None and len(self.augments) > 0:
raise Exception('Augments not supported for videos')
if self.has_augmentations:
raise Exception('Augmentations not supported for videos')
if not self.dataset_config.buckets:
raise Exception('Buckets required for video processing')
try:
# Use OpenCV to capture video frames
cap = cv2.VideoCapture(self.path)
if not cap.isOpened():
raise Exception(f"Failed to open video file: {self.path}")
# Get video properties
total_frames = int(cap.get(cv2.CAP_PROP_FRAME_COUNT))
video_fps = cap.get(cv2.CAP_PROP_FPS)
# Calculate the max valid frame index (accounting for zero-indexing)
max_frame_index = total_frames - 1
# Only log video properties if in debug mode
if hasattr(self.dataset_config, 'debug') and self.dataset_config.debug:
print_acc(f"Video properties: {self.path}")
print_acc(f" Total frames: {total_frames}")
print_acc(f" Max valid frame index: {max_frame_index}")
print_acc(f" FPS: {video_fps}")
frames_to_extract = []
# Always stretch/shrink to the requested number of frames if needed
if self.dataset_config.shrink_video_to_frames or total_frames < self.dataset_config.num_frames:
# Distribute frames evenly across the entire video
interval = max_frame_index / (self.dataset_config.num_frames - 1) if self.dataset_config.num_frames > 1 else 0
frames_to_extract = [min(int(round(i * interval)), max_frame_index) for i in range(self.dataset_config.num_frames)]
else:
# Calculate frame interval based on FPS ratio
fps_ratio = video_fps / self.dataset_config.fps
frame_interval = max(1, int(round(fps_ratio)))
# Calculate max consecutive frames we can extract at desired FPS
max_consecutive_frames = (total_frames // frame_interval)
if max_consecutive_frames < self.dataset_config.num_frames:
# Not enough frames at desired FPS, so stretch instead
interval = max_frame_index / (self.dataset_config.num_frames - 1) if self.dataset_config.num_frames > 1 else 0
frames_to_extract = [min(int(round(i * interval)), max_frame_index) for i in range(self.dataset_config.num_frames)]
else:
# Calculate max start frame to ensure we can get all num_frames
max_start_frame = max_frame_index - ((self.dataset_config.num_frames - 1) * frame_interval)
start_frame = random.randint(0, max(0, max_start_frame))
# Generate list of frames to extract
frames_to_extract = [start_frame + (i * frame_interval) for i in range(self.dataset_config.num_frames)]
# Final safety check - ensure no frame exceeds max valid index
frames_to_extract = [min(frame_idx, max_frame_index) for frame_idx in frames_to_extract]
# Only log frames to extract if in debug mode
if hasattr(self.dataset_config, 'debug') and self.dataset_config.debug:
print_acc(f" Frames to extract: {frames_to_extract}")
# Extract frames
frames = []
for frame_idx in frames_to_extract:
# Safety check - ensure frame_idx is within bounds (silently fix)
if frame_idx > max_frame_index:
frame_idx = max_frame_index
# Set frame position
cap.set(cv2.CAP_PROP_POS_FRAMES, frame_idx)
# Silently verify position was set correctly (no warnings unless debug mode)
if hasattr(self.dataset_config, 'debug') and self.dataset_config.debug:
actual_pos = int(cap.get(cv2.CAP_PROP_POS_FRAMES))
if actual_pos != frame_idx:
print_acc(f"Warning: Failed to set exact frame position. Requested: {frame_idx}, Actual: {actual_pos}")
ret, frame = cap.read()
if not ret:
# Try to provide more detailed error information
actual_frame = int(cap.get(cv2.CAP_PROP_POS_FRAMES))
frame_pos_info = f"Requested frame: {frame_idx}, Actual frame position: {actual_frame}"
# Try to read the next available frame as a fallback
fallback_success = False
for fallback_offset in [1, -1, 5, -5, 10, -10]:
fallback_pos = max(0, min(frame_idx + fallback_offset, max_frame_index))
cap.set(cv2.CAP_PROP_POS_FRAMES, fallback_pos)
fallback_ret, fallback_frame = cap.read()
if fallback_ret:
# Only log in debug mode
if hasattr(self.dataset_config, 'debug') and self.dataset_config.debug:
print_acc(f"Falling back to nearby frame {fallback_pos} instead of {frame_idx}")
frame = fallback_frame
fallback_success = True
break
else:
# No fallback worked, raise a more detailed exception
video_info = f"Video: {self.path}, Total frames: {total_frames}, FPS: {video_fps}"
raise Exception(f"Failed to read frame {frame_idx} from video. {frame_pos_info}. {video_info}")
# Convert BGR to RGB
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
# Convert to PIL Image
img = Image.fromarray(frame)
# Apply the same processing as for single images
img = img.convert('RGB')
if self.flip_x:
img = img.transpose(Image.FLIP_LEFT_RIGHT)
if self.flip_y:
img = img.transpose(Image.FLIP_TOP_BOTTOM)
# Apply bucketing
img = img.resize((self.scale_to_width, self.scale_to_height), Image.BICUBIC)
img = img.crop((
self.crop_x,
self.crop_y,
self.crop_x + self.crop_width,
self.crop_y + self.crop_height
))
# Apply transform if provided
if transform:
img = transform(img)
frames.append(img)
# Release the video capture
cap.release()
# Stack frames into tensor [frames, channels, height, width]
self.tensor = torch.stack(frames)
# Only log success in debug mode
if hasattr(self.dataset_config, 'debug') and self.dataset_config.debug:
print_acc(f"Successfully loaded video with {len(frames)} frames: {self.path}")
except Exception as e:
# Print full traceback
traceback.print_exc()
# Provide more context about the error
error_msg = str(e)
try:
if 'Failed to read frame' in error_msg and cap is not None:
# Try to get more info about the video that failed
cap_status = "Opened" if cap.isOpened() else "Closed"
current_pos = int(cap.get(cv2.CAP_PROP_POS_FRAMES)) if cap.isOpened() else "Unknown"
reported_total = int(cap.get(cv2.CAP_PROP_FRAME_COUNT)) if cap.isOpened() else "Unknown"
print_acc(f"Video details when error occurred:")
print_acc(f" Cap status: {cap_status}")
print_acc(f" Current position: {current_pos}")
print_acc(f" Reported total frames: {reported_total}")
# Try to verify if the video is corrupted
if cap.isOpened():
cap.set(cv2.CAP_PROP_POS_FRAMES, 0) # Go to start
start_ret, _ = cap.read()
# Try to read the last frame to check if it's accessible
if reported_total > 0:
cap.set(cv2.CAP_PROP_POS_FRAMES, reported_total - 1)
end_ret, _ = cap.read()
print_acc(f" Can read first frame: {start_ret}, Can read last frame: {end_ret}")
# Close the cap if it's still open
cap.release()
except Exception as debug_err:
print_acc(f"Error during error diagnosis: {debug_err}")
print_acc(f"Error: {error_msg}")
print_acc(f"Error loading video: {self.path}")
# Re-raise with more detailed information
raise Exception(f"Video loading error ({self.path}): {error_msg}") from e
def load_and_process_image(
self: 'FileItemDTO',
transform: Union[None, transforms.Compose],
only_load_latents=False
):
if self.dataset_config.num_frames > 1:
self.load_and_process_video(transform, only_load_latents)
return
# if we are caching latents, just do that
if self.is_latent_cached:
self.get_latent()
if self.has_control_image:
self.load_control_image()
if self.has_inpaint_image:
self.load_inpaint_image()
if self.has_clip_image:
self.load_clip_image()
if self.has_mask_image:
self.load_mask_image()
if self.has_unconditional:
self.load_unconditional_image()
return
try:
img = Image.open(self.path)
img = exif_transpose(img)
except Exception as e:
print_acc(f"Error: {e}")
print_acc(f"Error loading image: {self.path}")
if self.use_alpha_as_mask:
# we do this to make sure it does not replace the alpha with another color
# we want the image just without the alpha channel
np_img = np.array(img)
# strip off alpha
np_img = np_img[:, :, :3]
img = Image.fromarray(np_img)
img = img.convert('RGB')
w, h = img.size
if w > h and self.scale_to_width < self.scale_to_height:
# throw error, they should match
print_acc(
f"unexpected values: w={w}, h={h}, file_item.scale_to_width={self.scale_to_width}, file_item.scale_to_height={self.scale_to_height}, file_item.path={self.path}")
elif h > w and self.scale_to_height < self.scale_to_width:
# throw error, they should match
print_acc(
f"unexpected values: w={w}, h={h}, file_item.scale_to_width={self.scale_to_width}, file_item.scale_to_height={self.scale_to_height}, file_item.path={self.path}")
if self.flip_x:
# do a flip
img = img.transpose(Image.FLIP_LEFT_RIGHT)
if self.flip_y:
# do a flip
img = img.transpose(Image.FLIP_TOP_BOTTOM)
if self.dataset_config.buckets:
# scale and crop based on file item
img = img.resize((self.scale_to_width, self.scale_to_height), Image.BICUBIC)
# crop to x_crop, y_crop, x_crop + crop_width, y_crop + crop_height
if img.width < self.crop_x + self.crop_width or img.height < self.crop_y + self.crop_height:
# todo look into this. This still happens sometimes
print_acc('size mismatch')
img = img.crop((
self.crop_x,
self.crop_y,
self.crop_x + self.crop_width,
self.crop_y + self.crop_height
))
# img = transforms.CenterCrop((self.crop_height, self.crop_width))(img)
else:
# Downscale the source image first
# TODO this is nto right
img = img.resize(
(int(img.size[0] * self.dataset_config.scale), int(img.size[1] * self.dataset_config.scale)),
Image.BICUBIC)
min_img_size = min(img.size)
if self.dataset_config.random_crop:
if self.dataset_config.random_scale and min_img_size > self.dataset_config.resolution:
if min_img_size < self.dataset_config.resolution:
print_acc(
f"Unexpected values: min_img_size={min_img_size}, self.resolution={self.dataset_config.resolution}, image file={self.path}")
scale_size = self.dataset_config.resolution
else:
scale_size = random.randint(self.dataset_config.resolution, int(min_img_size))
scaler = scale_size / min_img_size
scale_width = int((img.width + 5) * scaler)
scale_height = int((img.height + 5) * scaler)
img = img.resize((scale_width, scale_height), Image.BICUBIC)
img = transforms.RandomCrop(self.dataset_config.resolution)(img)
else:
img = transforms.CenterCrop(min_img_size)(img)
img = img.resize((self.dataset_config.resolution, self.dataset_config.resolution), Image.BICUBIC)
if self.augments is not None and len(self.augments) > 0:
# do augmentations
for augment in self.augments:
if augment in transforms_dict:
img = transforms_dict[augment](img)
if self.has_augmentations:
# augmentations handles transforms
img = self.augment_image(img, transform=transform)
elif transform:
img = transform(img)
self.tensor = img
if not only_load_latents:
if self.has_control_image:
self.load_control_image()
if self.has_inpaint_image:
self.load_inpaint_image()
if self.has_clip_image:
self.load_clip_image()
if self.has_mask_image:
self.load_mask_image()
if self.has_unconditional:
self.load_unconditional_image()
class InpaintControlFileItemDTOMixin:
def __init__(self: 'FileItemDTO', *args, **kwargs):
if hasattr(super(), '__init__'):
super().__init__(*args, **kwargs)
self.has_inpaint_image = False
self.inpaint_path: Union[str, None] = None
self.inpaint_tensor: Union[torch.Tensor, None] = None
dataset_config: 'DatasetConfig' = kwargs.get('dataset_config', None)
if dataset_config.inpaint_path is not None:
# find the control image path
inpaint_path = dataset_config.inpaint_path
# we are using control images
img_path = kwargs.get('path', None)
img_inpaint_ext_list = ['.png', '.webp']
file_name_no_ext = os.path.splitext(os.path.basename(img_path))[0]
for ext in img_inpaint_ext_list:
p = os.path.join(inpaint_path, file_name_no_ext + ext)
if os.path.exists(p):
self.inpaint_path = p
self.has_inpaint_image = True
break
def load_inpaint_image(self: 'FileItemDTO'):
try:
# image must have alpha channel for inpaint
img = Image.open(self.inpaint_path)
# make sure has aplha
if img.mode != 'RGBA':
return
img = exif_transpose(img)
w, h = img.size
if w > h and self.scale_to_width < self.scale_to_height:
# throw error, they should match
raise ValueError(
f"unexpected values: w={w}, h={h}, file_item.scale_to_width={self.scale_to_width}, file_item.scale_to_height={self.scale_to_height}, file_item.path={self.path}")
elif h > w and self.scale_to_height < self.scale_to_width:
# throw error, they should match
raise ValueError(
f"unexpected values: w={w}, h={h}, file_item.scale_to_width={self.scale_to_width}, file_item.scale_to_height={self.scale_to_height}, file_item.path={self.path}")
if self.flip_x:
# do a flip
img = img.transpose(Image.FLIP_LEFT_RIGHT)
if self.flip_y:
# do a flip
img = img.transpose(Image.FLIP_TOP_BOTTOM)
if self.dataset_config.buckets:
# scale and crop based on file item
img = img.resize((self.scale_to_width, self.scale_to_height), Image.BICUBIC)
# img = transforms.CenterCrop((self.crop_height, self.crop_width))(img)
# crop
img = img.crop((
self.crop_x,
self.crop_y,
self.crop_x + self.crop_width,
self.crop_y + self.crop_height
))
else:
raise Exception("Inpaint images not supported for non-bucket datasets")
transform = transforms.Compose([
transforms.ToTensor(),
])
if self.aug_replay_spatial_transforms:
tensor = self.augment_spatial_control(img, transform=transform)
else:
tensor = transform(img)
# is 0 to 1 with alpha
self.inpaint_tensor = tensor
except Exception as e:
print_acc(f"Error: {e}")
print_acc(f"Error loading image: {self.inpaint_path}")
def cleanup_inpaint(self: 'FileItemDTO'):
self.inpaint_tensor = None
class ControlFileItemDTOMixin:
def __init__(self: 'FileItemDTO', *args, **kwargs):
if hasattr(super(), '__init__'):
super().__init__(*args, **kwargs)
self.has_control_image = False
self.control_path: Union[str, List[str], None] = None
self.control_tensor: Union[torch.Tensor, None] = None
dataset_config: 'DatasetConfig' = kwargs.get('dataset_config', None)
self.full_size_control_images = False
if dataset_config.control_path is not None:
# find the control image path
control_path_list = dataset_config.control_path
if not isinstance(control_path_list, list):
control_path_list = [control_path_list]
self.full_size_control_images = dataset_config.full_size_control_images
# we are using control images
img_path = kwargs.get('path', None)
file_name_no_ext = os.path.splitext(os.path.basename(img_path))[0]
found_control_images = []
for control_path in control_path_list:
for ext in img_ext_list:
if os.path.exists(os.path.join(control_path, file_name_no_ext + ext)):
found_control_images.append(os.path.join(control_path, file_name_no_ext + ext))
self.has_control_image = True
break
self.control_path = found_control_images
if len(self.control_path) == 0:
self.control_path = None
elif len(self.control_path) == 1:
# only do one
self.control_path = self.control_path[0]
def load_control_image(self: 'FileItemDTO'):
control_tensors = []
control_path_list = self.control_path
if not isinstance(self.control_path, list):
control_path_list = [self.control_path]
for control_path in control_path_list:
try:
img = Image.open(control_path).convert('RGB')
img = exif_transpose(img)
except Exception as e:
print_acc(f"Error: {e}")
print_acc(f"Error loading image: {control_path}")
if not self.full_size_control_images:
# we just scale them to 512x512:
w, h = img.size
img = img.resize((512, 512), Image.BICUBIC)
else:
w, h = img.size
if w > h and self.scale_to_width < self.scale_to_height:
# throw error, they should match
raise ValueError(
f"unexpected values: w={w}, h={h}, file_item.scale_to_width={self.scale_to_width}, file_item.scale_to_height={self.scale_to_height}, file_item.path={self.path}")
elif h > w and self.scale_to_height < self.scale_to_width:
# throw error, they should match
raise ValueError(
f"unexpected values: w={w}, h={h}, file_item.scale_to_width={self.scale_to_width}, file_item.scale_to_height={self.scale_to_height}, file_item.path={self.path}")
if self.flip_x:
# do a flip
img = img.transpose(Image.FLIP_LEFT_RIGHT)
if self.flip_y:
# do a flip
img = img.transpose(Image.FLIP_TOP_BOTTOM)
if self.dataset_config.buckets:
# scale and crop based on file item
img = img.resize((self.scale_to_width, self.scale_to_height), Image.BICUBIC)
# img = transforms.CenterCrop((self.crop_height, self.crop_width))(img)
# crop
img = img.crop((
self.crop_x,
self.crop_y,
self.crop_x + self.crop_width,
self.crop_y + self.crop_height
))
else:
raise Exception("Control images not supported for non-bucket datasets")
transform = transforms.Compose([
transforms.ToTensor(),
])
if self.aug_replay_spatial_transforms:
tensor = self.augment_spatial_control(img, transform=transform)
else:
tensor = transform(img)
control_tensors.append(tensor)
if len(control_tensors) == 0:
self.control_tensor = None
elif len(control_tensors) == 1:
self.control_tensor = control_tensors[0]
else:
self.control_tensor = torch.stack(control_tensors, dim=0)
def cleanup_control(self: 'FileItemDTO'):
self.control_tensor = None
class ClipImageFileItemDTOMixin:
def __init__(self: 'FileItemDTO', *args, **kwargs):
if hasattr(super(), '__init__'):
super().__init__(*args, **kwargs)
self.has_clip_image = False
self.clip_image_path: Union[str, None] = None
self.clip_image_tensor: Union[torch.Tensor, None] = None
self.clip_image_embeds: Union[dict, None] = None
self.clip_image_embeds_unconditional: Union[dict, None] = None
self.has_clip_augmentations = False
self.clip_image_aug_transform: Union[None, A.Compose] = None
self.clip_image_processor: Union[None, CLIPImageProcessor] = None
self.clip_image_encoder_path: Union[str, None] = None
self.is_caching_clip_vision_to_disk = False
self.is_vision_clip_cached = False
self.clip_vision_is_quad = False
self.clip_vision_load_device = 'cpu'
self.clip_vision_unconditional_paths: Union[List[str], None] = None
self._clip_vision_embeddings_path: Union[str, None] = None
dataset_config: 'DatasetConfig' = kwargs.get('dataset_config', None)
if dataset_config.clip_image_path is not None or dataset_config.clip_image_from_same_folder:
# copy the clip image processor so the dataloader can do it
sd = kwargs.get('sd', None)
if hasattr(sd.adapter, 'clip_image_processor'):
self.clip_image_processor = sd.adapter.clip_image_processor
if dataset_config.clip_image_path is not None:
# find the control image path
clip_image_path = dataset_config.clip_image_path
# we are using control images
img_path = kwargs.get('path', None)
file_name_no_ext = os.path.splitext(os.path.basename(img_path))[0]
for ext in img_ext_list:
if os.path.exists(os.path.join(clip_image_path, file_name_no_ext + ext)):
self.clip_image_path = os.path.join(clip_image_path, file_name_no_ext + ext)
self.has_clip_image = True
break
self.build_clip_imag_augmentation_transform()
if dataset_config.clip_image_from_same_folder:
# assume we have one. We will pull it on load.
self.has_clip_image = True
self.build_clip_imag_augmentation_transform()
def build_clip_imag_augmentation_transform(self: 'FileItemDTO'):
if self.dataset_config.clip_image_augmentations is not None and len(self.dataset_config.clip_image_augmentations) > 0:
self.has_clip_augmentations = True
augmentations = [Augments(**aug) for aug in self.dataset_config.clip_image_augmentations]
if self.dataset_config.clip_image_shuffle_augmentations:
random.shuffle(augmentations)
augmentation_list = []
for aug in augmentations:
# make sure method name is valid
assert hasattr(A, aug.method_name), f"invalid augmentation method: {aug.method_name}"
# get the method
method = getattr(A, aug.method_name)
# add the method to the list
augmentation_list.append(method(**aug.params))
self.clip_image_aug_transform = A.Compose(augmentation_list)
def augment_clip_image(self: 'FileItemDTO', img: Image, transform: Union[None, transforms.Compose], ):
if self.dataset_config.clip_image_shuffle_augmentations:
self.build_clip_imag_augmentation_transform()
open_cv_image = np.array(img)
# Convert RGB to BGR
open_cv_image = open_cv_image[:, :, ::-1].copy()
if self.clip_vision_is_quad:
# image is in a 2x2 gris. split, run augs, and recombine
# split
img1, img2 = np.hsplit(open_cv_image, 2)
img1_1, img1_2 = np.vsplit(img1, 2)
img2_1, img2_2 = np.vsplit(img2, 2)
# apply augmentations
img1_1 = self.clip_image_aug_transform(image=img1_1)["image"]
img1_2 = self.clip_image_aug_transform(image=img1_2)["image"]
img2_1 = self.clip_image_aug_transform(image=img2_1)["image"]
img2_2 = self.clip_image_aug_transform(image=img2_2)["image"]
# recombine
augmented = np.vstack((np.hstack((img1_1, img1_2)), np.hstack((img2_1, img2_2))))
else:
# apply augmentations
augmented = self.clip_image_aug_transform(image=open_cv_image)["image"]
# convert back to RGB tensor
augmented = cv2.cvtColor(augmented, cv2.COLOR_BGR2RGB)
# convert to PIL image
augmented = Image.fromarray(augmented)
augmented_tensor = transforms.ToTensor()(augmented) if transform is None else transform(augmented)
return augmented_tensor
def get_clip_vision_info_dict(self: 'FileItemDTO'):
item = OrderedDict([
("image_encoder_path", self.clip_image_encoder_path),
("filename", os.path.basename(self.clip_image_path)),
("is_quad", self.clip_vision_is_quad)
])
# when adding items, do it after so we dont change old latents
if self.flip_x:
item["flip_x"] = True
if self.flip_y:
item["flip_y"] = True
return item
def get_clip_vision_embeddings_path(self: 'FileItemDTO', recalculate=False):
if self._clip_vision_embeddings_path is not None and not recalculate:
return self._clip_vision_embeddings_path
else:
# we store latents in a folder in same path as image called _latent_cache
img_dir = os.path.dirname(self.clip_image_path)
latent_dir = os.path.join(img_dir, '_clip_vision_cache')
hash_dict = self.get_clip_vision_info_dict()
filename_no_ext = os.path.splitext(os.path.basename(self.clip_image_path))[0]
# get base64 hash of md5 checksum of hash_dict
hash_input = json.dumps(hash_dict, sort_keys=True).encode('utf-8')
hash_str = base64.urlsafe_b64encode(hashlib.md5(hash_input).digest()).decode('ascii')
hash_str = hash_str.replace('=', '')
self._clip_vision_embeddings_path = os.path.join(latent_dir, f'{filename_no_ext}_{hash_str}.safetensors')
return self._clip_vision_embeddings_path
def get_new_clip_image_path(self: 'FileItemDTO'):
if self.dataset_config.clip_image_from_same_folder:
# randomly grab an image path from the same folder
pool_folder = os.path.dirname(self.path)
# find all images in the folder
img_files = []
for ext in img_ext_list:
img_files += glob.glob(os.path.join(pool_folder, f'*{ext}'))
# remove the current image if len is greater than 1
if len(img_files) > 1:
img_files.remove(self.path)
# randomly grab one
return random.choice(img_files)
else:
return self.clip_image_path
def load_clip_image(self: 'FileItemDTO'):
is_dynamic_size_and_aspect = isinstance(self.clip_image_processor, PixtralVisionImagePreprocessorCompatible) or \
isinstance(self.clip_image_processor, SiglipImageProcessor)
if self.clip_image_processor is None:
is_dynamic_size_and_aspect = True # serving it raw
if self.is_vision_clip_cached:
self.clip_image_embeds = load_file(self.get_clip_vision_embeddings_path())
# get a random unconditional image
if self.clip_vision_unconditional_paths is not None:
unconditional_path = random.choice(self.clip_vision_unconditional_paths)
self.clip_image_embeds_unconditional = load_file(unconditional_path)
return
clip_image_path = self.get_new_clip_image_path()
try:
img = Image.open(clip_image_path).convert('RGB')
img = exif_transpose(img)
except Exception as e:
# make a random noise image
img = Image.new('RGB', (self.dataset_config.resolution, self.dataset_config.resolution))
print_acc(f"Error: {e}")
print_acc(f"Error loading image: {clip_image_path}")
img = img.convert('RGB')
if self.flip_x:
# do a flip
img = img.transpose(Image.FLIP_LEFT_RIGHT)
if self.flip_y:
# do a flip
img = img.transpose(Image.FLIP_TOP_BOTTOM)
if is_dynamic_size_and_aspect:
pass # let the image processor handle it
elif img.width != img.height:
min_size = min(img.width, img.height)
if self.dataset_config.square_crop:
# center crop to a square
img = transforms.CenterCrop(min_size)(img)
else:
# image must be square. If it is not, we will resize/squish it so it is, that way we don't crop out data
# resize to the smallest dimension
img = img.resize((min_size, min_size), Image.BICUBIC)
if self.has_clip_augmentations:
self.clip_image_tensor = self.augment_clip_image(img, transform=None)
else:
self.clip_image_tensor = transforms.ToTensor()(img)
# random crop
# if self.dataset_config.clip_image_random_crop:
# # crop up to 20% on all sides. Keep is square
# crop_percent = random.randint(0, 20) / 100
# crop_width = int(self.clip_image_tensor.shape[2] * crop_percent)
# crop_height = int(self.clip_image_tensor.shape[1] * crop_percent)
# crop_left = random.randint(0, crop_width)
# crop_top = random.randint(0, crop_height)
# crop_right = self.clip_image_tensor.shape[2] - crop_width - crop_left
# crop_bottom = self.clip_image_tensor.shape[1] - crop_height - crop_top
# if len(self.clip_image_tensor.shape) == 3:
# self.clip_image_tensor = self.clip_image_tensor[:, crop_top:-crop_bottom, crop_left:-crop_right]
# elif len(self.clip_image_tensor.shape) == 4:
# self.clip_image_tensor = self.clip_image_tensor[:, :, crop_top:-crop_bottom, crop_left:-crop_right]
if self.clip_image_processor is not None:
# run it
tensors_0_1 = self.clip_image_tensor.to(dtype=torch.float16)
clip_out = self.clip_image_processor(
images=tensors_0_1,
return_tensors="pt",
do_resize=True,
do_rescale=False,
).pixel_values
self.clip_image_tensor = clip_out.squeeze(0).clone().detach()
def cleanup_clip_image(self: 'FileItemDTO'):
self.clip_image_tensor = None
self.clip_image_embeds = None
class AugmentationFileItemDTOMixin:
def __init__(self: 'FileItemDTO', *args, **kwargs):
if hasattr(super(), '__init__'):
super().__init__(*args, **kwargs)
self.has_augmentations = False
self.unaugmented_tensor: Union[torch.Tensor, None] = None
# self.augmentations: Union[None, List[Augments]] = None
self.dataset_config: 'DatasetConfig' = kwargs.get('dataset_config', None)
self.aug_transform: Union[None, A.Compose] = None
self.aug_replay_spatial_transforms = None
self.build_augmentation_transform()
def build_augmentation_transform(self: 'FileItemDTO'):
if self.dataset_config.augmentations is not None and len(self.dataset_config.augmentations) > 0:
self.has_augmentations = True
augmentations = [Augments(**aug) for aug in self.dataset_config.augmentations]
if self.dataset_config.shuffle_augmentations:
random.shuffle(augmentations)
augmentation_list = []
for aug in augmentations:
# make sure method name is valid
assert hasattr(A, aug.method_name), f"invalid augmentation method: {aug.method_name}"
# get the method
method = getattr(A, aug.method_name)
# add the method to the list
augmentation_list.append(method(**aug.params))
# add additional targets so we can augment the control image
self.aug_transform = A.ReplayCompose(augmentation_list, additional_targets={'image2': 'image'})
def augment_image(self: 'FileItemDTO', img: Image, transform: Union[None, transforms.Compose], ):
# rebuild each time if shuffle
if self.dataset_config.shuffle_augmentations:
self.build_augmentation_transform()
# save the original tensor
self.unaugmented_tensor = transforms.ToTensor()(img) if transform is None else transform(img)
open_cv_image = np.array(img)
# Convert RGB to BGR
open_cv_image = open_cv_image[:, :, ::-1].copy()
# apply augmentations
transformed = self.aug_transform(image=open_cv_image)
augmented = transformed["image"]
# save just the spatial transforms for controls and masks
augmented_params = transformed["replay"]
spatial_transforms = ['Rotate', 'Flip', 'HorizontalFlip', 'VerticalFlip', 'Resize', 'Crop', 'RandomCrop',
'ElasticTransform', 'GridDistortion', 'OpticalDistortion']
# only store the spatial transforms
augmented_params['transforms'] = [t for t in augmented_params['transforms'] if t['__class_fullname__'].split('.')[-1] in spatial_transforms]
if self.dataset_config.replay_transforms:
self.aug_replay_spatial_transforms = augmented_params
# convert back to RGB tensor
augmented = cv2.cvtColor(augmented, cv2.COLOR_BGR2RGB)
# convert to PIL image
augmented = Image.fromarray(augmented)
augmented_tensor = transforms.ToTensor()(augmented) if transform is None else transform(augmented)
return augmented_tensor
# augment control images spatially consistent with transforms done to the main image
def augment_spatial_control(self: 'FileItemDTO', img: Image, transform: Union[None, transforms.Compose] ):
if self.aug_replay_spatial_transforms is None:
# no transforms
return transform(img)
# save colorspace to convert back to
colorspace = img.mode
# convert to rgb
img = img.convert('RGB')
open_cv_image = np.array(img)
# Convert RGB to BGR
open_cv_image = open_cv_image[:, :, ::-1].copy()
# Replay transforms
transformed = A.ReplayCompose.replay(self.aug_replay_spatial_transforms, image=open_cv_image)
augmented = transformed["image"]
# convert back to RGB tensor
augmented = cv2.cvtColor(augmented, cv2.COLOR_BGR2RGB)
# convert to PIL image
augmented = Image.fromarray(augmented)
# convert back to original colorspace
augmented = augmented.convert(colorspace)
augmented_tensor = transforms.ToTensor()(augmented) if transform is None else transform(augmented)
return augmented_tensor
def cleanup_control(self: 'FileItemDTO'):
self.unaugmented_tensor = None
class MaskFileItemDTOMixin:
def __init__(self: 'FileItemDTO', *args, **kwargs):
if hasattr(super(), '__init__'):
super().__init__(*args, **kwargs)
self.has_mask_image = False
self.mask_path: Union[str, None] = None
self.mask_tensor: Union[torch.Tensor, None] = None
self.use_alpha_as_mask: bool = False
dataset_config: 'DatasetConfig' = kwargs.get('dataset_config', None)
self.mask_min_value = dataset_config.mask_min_value
if dataset_config.alpha_mask:
self.use_alpha_as_mask = True
self.mask_path = kwargs.get('path', None)
self.has_mask_image = True
elif dataset_config.mask_path is not None:
# find the control image path
mask_path = dataset_config.mask_path if dataset_config.mask_path is not None else dataset_config.alpha_mask
# we are using control images
img_path = kwargs.get('path', None)
file_name_no_ext = os.path.splitext(os.path.basename(img_path))[0]
for ext in img_ext_list:
if os.path.exists(os.path.join(mask_path, file_name_no_ext + ext)):
self.mask_path = os.path.join(mask_path, file_name_no_ext + ext)
self.has_mask_image = True
break
def load_mask_image(self: 'FileItemDTO'):
try:
img = Image.open(self.mask_path)
img = exif_transpose(img)
except Exception as e:
print_acc(f"Error: {e}")
print_acc(f"Error loading image: {self.mask_path}")
if self.use_alpha_as_mask:
# pipeline expectws an rgb image so we need to put alpha in all channels
np_img = np.array(img)
np_img[:, :, :3] = np_img[:, :, 3:]
np_img = np_img[:, :, :3]
img = Image.fromarray(np_img)
img = img.convert('RGB')
if self.dataset_config.invert_mask:
img = ImageOps.invert(img)
w, h = img.size
fix_size = False
if w > h and self.scale_to_width < self.scale_to_height:
# throw error, they should match
print_acc(f"unexpected values: w={w}, h={h}, file_item.scale_to_width={self.scale_to_width}, file_item.scale_to_height={self.scale_to_height}, file_item.path={self.path}")
fix_size = True
elif h > w and self.scale_to_height < self.scale_to_width:
# throw error, they should match
print_acc(f"unexpected values: w={w}, h={h}, file_item.scale_to_width={self.scale_to_width}, file_item.scale_to_height={self.scale_to_height}, file_item.path={self.path}")
fix_size = True
if fix_size:
# swap all the sizes
self.scale_to_width, self.scale_to_height = self.scale_to_height, self.scale_to_width
self.crop_width, self.crop_height = self.crop_height, self.crop_width
self.crop_x, self.crop_y = self.crop_y, self.crop_x
if self.flip_x:
# do a flip
img = img.transpose(Image.FLIP_LEFT_RIGHT)
if self.flip_y:
# do a flip
img = img.transpose(Image.FLIP_TOP_BOTTOM)
# randomly apply a blur up to 0.5% of the size of the min (width, height)
min_size = min(img.width, img.height)
blur_radius = int(min_size * random.random() * 0.005)
img = img.filter(ImageFilter.GaussianBlur(radius=blur_radius))
# make grayscale
img = img.convert('L')
if self.dataset_config.buckets:
# scale and crop based on file item
img = img.resize((self.scale_to_width, self.scale_to_height), Image.BICUBIC)
# img = transforms.CenterCrop((self.crop_height, self.crop_width))(img)
# crop
img = img.crop((
self.crop_x,
self.crop_y,
self.crop_x + self.crop_width,
self.crop_y + self.crop_height
))
else:
raise Exception("Mask images not supported for non-bucket datasets")
transform = transforms.Compose([
transforms.ToTensor(),
])
if self.aug_replay_spatial_transforms:
self.mask_tensor = self.augment_spatial_control(img, transform=transform)
else:
self.mask_tensor = transform(img)
self.mask_tensor = value_map(self.mask_tensor, 0, 1.0, self.mask_min_value, 1.0)
# convert to grayscale
def cleanup_mask(self: 'FileItemDTO'):
self.mask_tensor = None
class UnconditionalFileItemDTOMixin:
def __init__(self: 'FileItemDTO', *args, **kwargs):
if hasattr(super(), '__init__'):
super().__init__(*args, **kwargs)
self.has_unconditional = False
self.unconditional_path: Union[str, None] = None
self.unconditional_tensor: Union[torch.Tensor, None] = None
self.unconditional_latent: Union[torch.Tensor, None] = None
self.unconditional_transforms = self.dataloader_transforms
dataset_config: 'DatasetConfig' = kwargs.get('dataset_config', None)
if dataset_config.unconditional_path is not None:
# we are using control images
img_path = kwargs.get('path', None)
file_name_no_ext = os.path.splitext(os.path.basename(img_path))[0]
for ext in img_ext_list:
if os.path.exists(os.path.join(dataset_config.unconditional_path, file_name_no_ext + ext)):
self.unconditional_path = os.path.join(dataset_config.unconditional_path, file_name_no_ext + ext)
self.has_unconditional = True
break
def load_unconditional_image(self: 'FileItemDTO'):
try:
img = Image.open(self.unconditional_path)
img = exif_transpose(img)
except Exception as e:
print_acc(f"Error: {e}")
print_acc(f"Error loading image: {self.mask_path}")
img = img.convert('RGB')
w, h = img.size
if w > h and self.scale_to_width < self.scale_to_height:
# throw error, they should match
raise ValueError(
f"unexpected values: w={w}, h={h}, file_item.scale_to_width={self.scale_to_width}, file_item.scale_to_height={self.scale_to_height}, file_item.path={self.path}")
elif h > w and self.scale_to_height < self.scale_to_width:
# throw error, they should match
raise ValueError(
f"unexpected values: w={w}, h={h}, file_item.scale_to_width={self.scale_to_width}, file_item.scale_to_height={self.scale_to_height}, file_item.path={self.path}")
if self.flip_x:
# do a flip
img = img.transpose(Image.FLIP_LEFT_RIGHT)
if self.flip_y:
# do a flip
img = img.transpose(Image.FLIP_TOP_BOTTOM)
if self.dataset_config.buckets:
# scale and crop based on file item
img = img.resize((self.scale_to_width, self.scale_to_height), Image.BICUBIC)
# img = transforms.CenterCrop((self.crop_height, self.crop_width))(img)
# crop
img = img.crop((
self.crop_x,
self.crop_y,
self.crop_x + self.crop_width,
self.crop_y + self.crop_height
))
else:
raise Exception("Unconditional images are not supported for non-bucket datasets")
if self.aug_replay_spatial_transforms:
self.unconditional_tensor = self.augment_spatial_control(img, transform=self.unconditional_transforms)
else:
self.unconditional_tensor = self.unconditional_transforms(img)
def cleanup_unconditional(self: 'FileItemDTO'):
self.unconditional_tensor = None
self.unconditional_latent = None
class PoiFileItemDTOMixin:
# Point of interest bounding box. Allows for dynamic cropping without cropping out the main subject
# items in the poi will always be inside the image when random cropping
def __init__(self: 'FileItemDTO', *args, **kwargs):
if hasattr(super(), '__init__'):
super().__init__(*args, **kwargs)
# poi is a name of the box point of interest in the caption json file
dataset_config = kwargs.get('dataset_config', None)
path = kwargs.get('path', None)
self.poi: Union[str, None] = dataset_config.poi
self.has_point_of_interest = self.poi is not None
self.poi_x: Union[int, None] = None
self.poi_y: Union[int, None] = None
self.poi_width: Union[int, None] = None
self.poi_height: Union[int, None] = None
if self.poi is not None:
# make sure latent caching is off
if dataset_config.cache_latents or dataset_config.cache_latents_to_disk:
raise Exception(
f"Error: poi is not supported when caching latents. Please set cache_latents and cache_latents_to_disk to False in the dataset config"
)
# make sure we are loading through json
if dataset_config.caption_ext != 'json':
raise Exception(
f"Error: poi is only supported when using json captions. Please set caption_ext to json in the dataset config"
)
self.poi = self.poi.strip()
# get the caption path
file_path_no_ext = os.path.splitext(path)[0]
caption_path = file_path_no_ext + '.json'
if not os.path.exists(caption_path):
raise Exception(f"Error: caption file not found for poi: {caption_path}")
with open(caption_path, 'r', encoding='utf-8') as f:
json_data = json.load(f)
if 'poi' not in json_data:
print_acc(f"Warning: poi not found in caption file: {caption_path}")
if self.poi not in json_data['poi']:
print_acc(f"Warning: poi not found in caption file: {caption_path}")
# poi has, x, y, width, height
# do full image if no poi
self.poi_x = 0
self.poi_y = 0
self.poi_width = self.width
self.poi_height = self.height
try:
if self.poi in json_data['poi']:
poi = json_data['poi'][self.poi]
self.poi_x = int(poi['x'])
self.poi_y = int(poi['y'])
self.poi_width = int(poi['width'])
self.poi_height = int(poi['height'])
except Exception as e:
pass
# handle flipping
if kwargs.get('flip_x', False):
# flip the poi
self.poi_x = self.width - self.poi_x - self.poi_width
if kwargs.get('flip_y', False):
# flip the poi
self.poi_y = self.height - self.poi_y - self.poi_height
def setup_poi_bucket(self: 'FileItemDTO'):
initial_width = int(self.width * self.dataset_config.scale)
initial_height = int(self.height * self.dataset_config.scale)
# we are using poi, so we need to calculate the bucket based on the poi
# if img resolution is less than dataset resolution, just return and let the normal bucketing happen
img_resolution = get_resolution(initial_width, initial_height)
if img_resolution <= self.dataset_config.resolution:
return False # will trigger normal bucketing
bucket_tolerance = self.dataset_config.bucket_tolerance
poi_x = int(self.poi_x * self.dataset_config.scale)
poi_y = int(self.poi_y * self.dataset_config.scale)
poi_width = int(self.poi_width * self.dataset_config.scale)
poi_height = int(self.poi_height * self.dataset_config.scale)
# loop to keep expanding until we are at the proper resolution. This is not ideal, we can probably handle it better
num_loops = 0
while True:
# crop left
if poi_x > 0:
poi_x = random.randint(0, poi_x)
else:
poi_x = 0
# crop right
cr_min = poi_x + poi_width
if cr_min < initial_width:
crop_right = random.randint(poi_x + poi_width, initial_width)
else:
crop_right = initial_width
poi_width = crop_right - poi_x
if poi_y > 0:
poi_y = random.randint(0, poi_y)
else:
poi_y = 0
if poi_y + poi_height < initial_height:
crop_bottom = random.randint(poi_y + poi_height, initial_height)
else:
crop_bottom = initial_height
poi_height = crop_bottom - poi_y
try:
# now we have our random crop, but it may be smaller than resolution. Check and expand if needed
current_resolution = get_resolution(poi_width, poi_height)
except Exception as e:
print_acc(f"Error: {e}")
print_acc(f"Error getting resolution: {self.path}")
raise e
return False
if current_resolution >= self.dataset_config.resolution:
# We can break now
break
else:
num_loops += 1
if num_loops > 100:
print_acc(
f"Warning: poi bucketing looped too many times. This should not happen. Please report this issue.")
return False
new_width = poi_width
new_height = poi_height
bucket_resolution = get_bucket_for_image_size(
new_width, new_height,
resolution=self.dataset_config.resolution,
divisibility=bucket_tolerance
)
width_scale_factor = bucket_resolution["width"] / new_width
height_scale_factor = bucket_resolution["height"] / new_height
# Use the maximum of the scale factors to ensure both dimensions are scaled above the bucket resolution
max_scale_factor = max(width_scale_factor, height_scale_factor)
self.scale_to_width = math.ceil(initial_width * max_scale_factor)
self.scale_to_height = math.ceil(initial_height * max_scale_factor)
self.crop_width = bucket_resolution['width']
self.crop_height = bucket_resolution['height']
self.crop_x = int(poi_x * max_scale_factor)
self.crop_y = int(poi_y * max_scale_factor)
if self.scale_to_width < self.crop_x + self.crop_width or self.scale_to_height < self.crop_y + self.crop_height:
# todo look into this. This still happens sometimes
print_acc('size mismatch')
return True
class ArgBreakMixin:
# just stops super calls form hitting object
def __init__(self, *args, **kwargs):
pass
class LatentCachingFileItemDTOMixin:
def __init__(self, *args, **kwargs):
# if we have super, call it
if hasattr(super(), '__init__'):
super().__init__(*args, **kwargs)
self._encoded_latent: Union[torch.Tensor, None] = None
self._latent_path: Union[str, None] = None
self.is_latent_cached = False
self.is_caching_to_disk = False
self.is_caching_to_memory = False
self.latent_load_device = 'cpu'
# sd1 or sdxl or others
self.latent_space_version = 'sd1'
# todo, increment this if we change the latent format to invalidate cache
self.latent_version = 1
def get_latent_info_dict(self: 'FileItemDTO'):
item = OrderedDict([
("filename", os.path.basename(self.path)),
("scale_to_width", self.scale_to_width),
("scale_to_height", self.scale_to_height),
("crop_x", self.crop_x),
("crop_y", self.crop_y),
("crop_width", self.crop_width),
("crop_height", self.crop_height),
("latent_space_version", self.latent_space_version),
("latent_version", self.latent_version),
])
# when adding items, do it after so we dont change old latents
if self.flip_x:
item["flip_x"] = True
if self.flip_y:
item["flip_y"] = True
return item
def get_latent_path(self: 'FileItemDTO', recalculate=False):
if self._latent_path is not None and not recalculate:
return self._latent_path
else:
# we store latents in a folder in same path as image called _latent_cache
img_dir = os.path.dirname(self.path)
latent_dir = os.path.join(img_dir, '_latent_cache')
hash_dict = self.get_latent_info_dict()
filename_no_ext = os.path.splitext(os.path.basename(self.path))[0]
# get base64 hash of md5 checksum of hash_dict
hash_input = json.dumps(hash_dict, sort_keys=True).encode('utf-8')
hash_str = base64.urlsafe_b64encode(hashlib.md5(hash_input).digest()).decode('ascii')
hash_str = hash_str.replace('=', '')
self._latent_path = os.path.join(latent_dir, f'{filename_no_ext}_{hash_str}.safetensors')
return self._latent_path
def cleanup_latent(self):
if self._encoded_latent is not None:
if not self.is_caching_to_memory:
# we are caching on disk, don't save in memory
self._encoded_latent = None
else:
# move it back to cpu
self._encoded_latent = self._encoded_latent.to('cpu')
def get_latent(self, device=None):
if not self.is_latent_cached:
return None
if self._encoded_latent is None:
# load it from disk
state_dict = load_file(
self.get_latent_path(),
# device=device if device is not None else self.latent_load_device
device='cpu'
)
self._encoded_latent = state_dict['latent']
return self._encoded_latent
class LatentCachingMixin:
def __init__(self: 'AiToolkitDataset', **kwargs):
# if we have super, call it
if hasattr(super(), '__init__'):
super().__init__(**kwargs)
self.latent_cache = {}
def cache_latents_all_latents(self: 'AiToolkitDataset'):
if self.dataset_config.num_frames > 1:
raise Exception("Error: caching latents is not supported for multi-frame datasets")
with accelerator.main_process_first():
print_acc(f"Caching latents for {self.dataset_path}")
# cache all latents to disk
to_disk = self.is_caching_latents_to_disk
to_memory = self.is_caching_latents_to_memory
if to_disk:
print_acc(" - Saving latents to disk")
if to_memory:
print_acc(" - Keeping latents in memory")
# move sd items to cpu except for vae
self.sd.set_device_state_preset('cache_latents')
# use tqdm to show progress
i = 0
for file_item in tqdm(self.file_list, desc=f'Caching latents{" to disk" if to_disk else ""}'):
# set latent space version
if self.sd.model_config.latent_space_version is not None:
file_item.latent_space_version = self.sd.model_config.latent_space_version
elif self.sd.is_xl:
file_item.latent_space_version = 'sdxl'
elif self.sd.is_v3:
file_item.latent_space_version = 'sd3'
elif self.sd.is_auraflow:
file_item.latent_space_version = 'sdxl'
elif self.sd.is_flux:
file_item.latent_space_version = 'flux1'
elif self.sd.model_config.is_pixart_sigma:
file_item.latent_space_version = 'sdxl'
else:
file_item.latent_space_version = self.sd.model_config.arch
file_item.is_caching_to_disk = to_disk
file_item.is_caching_to_memory = to_memory
file_item.latent_load_device = self.sd.device
latent_path = file_item.get_latent_path(recalculate=True)
# check if it is saved to disk already
if os.path.exists(latent_path):
if to_memory:
# load it into memory
state_dict = load_file(latent_path, device='cpu')
file_item._encoded_latent = state_dict['latent'].to('cpu', dtype=self.sd.torch_dtype)
else:
# not saved to disk, calculate
# load the image first
file_item.load_and_process_image(self.transform, only_load_latents=True)
dtype = self.sd.torch_dtype
device = self.sd.device_torch
# add batch dimension
try:
imgs = file_item.tensor.unsqueeze(0).to(device, dtype=dtype)
latent = self.sd.encode_images(imgs).squeeze(0)
except Exception as e:
print_acc(f"Error processing image: {file_item.path}")
print_acc(f"Error: {str(e)}")
raise e
# save_latent
if to_disk:
state_dict = OrderedDict([
('latent', latent.clone().detach().cpu()),
])
# metadata
meta = get_meta_for_safetensors(file_item.get_latent_info_dict())
os.makedirs(os.path.dirname(latent_path), exist_ok=True)
save_file(state_dict, latent_path, metadata=meta)
if to_memory:
# keep it in memory
file_item._encoded_latent = latent.to('cpu', dtype=self.sd.torch_dtype)
del imgs
del latent
del file_item.tensor
# flush(garbage_collect=False)
file_item.is_latent_cached = True
i += 1
# flush every 100
# if i % 100 == 0:
# flush()
# restore device state
self.sd.restore_device_state()
class CLIPCachingMixin:
def __init__(self: 'AiToolkitDataset', **kwargs):
# if we have super, call it
if hasattr(super(), '__init__'):
super().__init__(**kwargs)
self.clip_vision_num_unconditional_cache = 20
self.clip_vision_unconditional_cache = []
def cache_clip_vision_to_disk(self: 'AiToolkitDataset'):
if not self.is_caching_clip_vision_to_disk:
return
with torch.no_grad():
print_acc(f"Caching clip vision for {self.dataset_path}")
print_acc(" - Saving clip to disk")
# move sd items to cpu except for vae
self.sd.set_device_state_preset('cache_clip')
# make sure the adapter has attributes
if self.sd.adapter is None:
raise Exception("Error: must have an adapter to cache clip vision to disk")
clip_image_processor: CLIPImageProcessor = None
if hasattr(self.sd.adapter, 'clip_image_processor'):
clip_image_processor = self.sd.adapter.clip_image_processor
if clip_image_processor is None:
raise Exception("Error: must have a clip image processor to cache clip vision to disk")
vision_encoder: CLIPVisionModelWithProjection = None
if hasattr(self.sd.adapter, 'image_encoder'):
vision_encoder = self.sd.adapter.image_encoder
if hasattr(self.sd.adapter, 'vision_encoder'):
vision_encoder = self.sd.adapter.vision_encoder
if vision_encoder is None:
raise Exception("Error: must have a vision encoder to cache clip vision to disk")
# move vision encoder to device
vision_encoder.to(self.sd.device)
is_quad = self.sd.adapter.config.quad_image
image_encoder_path = self.sd.adapter.config.image_encoder_path
dtype = self.sd.torch_dtype
device = self.sd.device_torch
if hasattr(self.sd.adapter, 'clip_noise_zero') and self.sd.adapter.clip_noise_zero:
# just to do this, we did :)
# need more samples as it is random noise
self.clip_vision_num_unconditional_cache = self.clip_vision_num_unconditional_cache
else:
# only need one since it doesnt change
self.clip_vision_num_unconditional_cache = 1
# cache unconditionals
print_acc(f" - Caching {self.clip_vision_num_unconditional_cache} unconditional clip vision to disk")
clip_vision_cache_path = os.path.join(self.dataset_config.clip_image_path, '_clip_vision_cache')
unconditional_paths = []
is_noise_zero = hasattr(self.sd.adapter, 'clip_noise_zero') and self.sd.adapter.clip_noise_zero
for i in range(self.clip_vision_num_unconditional_cache):
hash_dict = OrderedDict([
("image_encoder_path", image_encoder_path),
("is_quad", is_quad),
("is_noise_zero", is_noise_zero),
])
# get base64 hash of md5 checksum of hash_dict
hash_input = json.dumps(hash_dict, sort_keys=True).encode('utf-8')
hash_str = base64.urlsafe_b64encode(hashlib.md5(hash_input).digest()).decode('ascii')
hash_str = hash_str.replace('=', '')
uncond_path = os.path.join(clip_vision_cache_path, f'uncond_{hash_str}_{i}.safetensors')
if os.path.exists(uncond_path):
# skip it
unconditional_paths.append(uncond_path)
continue
# generate a random image
img_shape = (1, 3, self.sd.adapter.input_size, self.sd.adapter.input_size)
if is_noise_zero:
tensors_0_1 = torch.rand(img_shape).to(device, dtype=torch.float32)
else:
tensors_0_1 = torch.zeros(img_shape).to(device, dtype=torch.float32)
clip_image = clip_image_processor(
images=tensors_0_1,
return_tensors="pt",
do_resize=True,
do_rescale=False,
).pixel_values
if is_quad:
# split the 4x4 grid and stack on batch
ci1, ci2 = clip_image.chunk(2, dim=2)
ci1, ci3 = ci1.chunk(2, dim=3)
ci2, ci4 = ci2.chunk(2, dim=3)
clip_image = torch.cat([ci1, ci2, ci3, ci4], dim=0).detach()
clip_output = vision_encoder(
clip_image.to(device, dtype=dtype),
output_hidden_states=True
)
# make state_dict ['last_hidden_state', 'image_embeds', 'penultimate_hidden_states']
state_dict = OrderedDict([
('image_embeds', clip_output.image_embeds.clone().detach().cpu()),
('last_hidden_state', clip_output.hidden_states[-1].clone().detach().cpu()),
('penultimate_hidden_states', clip_output.hidden_states[-2].clone().detach().cpu()),
])
os.makedirs(os.path.dirname(uncond_path), exist_ok=True)
save_file(state_dict, uncond_path)
unconditional_paths.append(uncond_path)
self.clip_vision_unconditional_cache = unconditional_paths
# use tqdm to show progress
i = 0
for file_item in tqdm(self.file_list, desc=f'Caching clip vision to disk'):
file_item.is_caching_clip_vision_to_disk = True
file_item.clip_vision_load_device = self.sd.device
file_item.clip_vision_is_quad = is_quad
file_item.clip_image_encoder_path = image_encoder_path
file_item.clip_vision_unconditional_paths = unconditional_paths
if file_item.has_clip_augmentations:
raise Exception("Error: clip vision caching is not supported with clip augmentations")
embedding_path = file_item.get_clip_vision_embeddings_path(recalculate=True)
# check if it is saved to disk already
if not os.path.exists(embedding_path):
# load the image first
file_item.load_clip_image()
# add batch dimension
clip_image = file_item.clip_image_tensor.unsqueeze(0).to(device, dtype=dtype)
if is_quad:
# split the 4x4 grid and stack on batch
ci1, ci2 = clip_image.chunk(2, dim=2)
ci1, ci3 = ci1.chunk(2, dim=3)
ci2, ci4 = ci2.chunk(2, dim=3)
clip_image = torch.cat([ci1, ci2, ci3, ci4], dim=0).detach()
clip_output = vision_encoder(
clip_image.to(device, dtype=dtype),
output_hidden_states=True
)
# make state_dict ['last_hidden_state', 'image_embeds', 'penultimate_hidden_states']
state_dict = OrderedDict([
('image_embeds', clip_output.image_embeds.clone().detach().cpu()),
('last_hidden_state', clip_output.hidden_states[-1].clone().detach().cpu()),
('penultimate_hidden_states', clip_output.hidden_states[-2].clone().detach().cpu()),
])
# metadata
meta = get_meta_for_safetensors(file_item.get_clip_vision_info_dict())
os.makedirs(os.path.dirname(embedding_path), exist_ok=True)
save_file(state_dict, embedding_path, metadata=meta)
del clip_image
del clip_output
del file_item.clip_image_tensor
# flush(garbage_collect=False)
file_item.is_vision_clip_cached = True
i += 1
# flush every 100
# if i % 100 == 0:
# flush()
# restore device state
self.sd.restore_device_state()
class ControlCachingMixin:
def __init__(self: 'AiToolkitDataset', **kwargs):
if hasattr(super(), '__init__'):
super().__init__(**kwargs)
self.control_depth_model = None
self.control_pose_model = None
self.control_line_model = None
self.control_bg_remover = None
def get_control_path(self: 'AiToolkitDataset', file_item:'FileItemDTO', control_type: ControlTypes):
coltrols_folder = os.path.join(os.path.dirname(file_item.path), '_controls')
file_name_no_ext = os.path.splitext(os.path.basename(file_item.path))[0]
file_name_no_ext_control = f"{file_name_no_ext}.{control_type}"
for ext in img_ext_list:
possible_path = os.path.join(coltrols_folder, file_name_no_ext_control + ext)
if os.path.exists(possible_path):
return possible_path
# if we get here, we need to generate the control
return None
def add_control_path_to_file_item(self: 'AiToolkitDataset', file_item: 'FileItemDTO', control_path: str, control_type: ControlTypes):
if control_type == 'inpaint':
file_item.inpaint_path = control_path
file_item.has_inpaint_image = True
elif control_type == 'mask':
file_item.mask_path = control_path
file_item.has_mask_image = True
else:
if file_item.control_path is None:
file_item.control_path = [control_path]
elif isinstance(file_item.control_path, str):
file_item.control_path = [file_item.control_path, control_path]
elif isinstance(file_item.control_path, list):
file_item.control_path.append(control_path)
else:
raise Exception(f"Error: control_path is not a string or list: {file_item.control_path}")
file_item.has_control_image = True
def setup_controls(self: 'AiToolkitDataset'):
if not self.is_generating_controls:
return
with torch.no_grad():
print_acc(f"Generating controls for {self.dataset_path}")
has_unloaded = False
device = self.sd.device
# controls 'depth', 'line', 'pose', 'inpaint', 'mask'
# use tqdm to show progress
i = 0
for file_item in tqdm(self.file_list, desc=f'Generating Controls'):
coltrols_folder = os.path.join(os.path.dirname(file_item.path), '_controls')
file_name_no_ext = os.path.splitext(os.path.basename(file_item.path))[0]
image: Image = None
for control_type in self.dataset_config.controls:
control_path = self.get_control_path(file_item, control_type)
if control_path is not None:
self.add_control_path_to_file_item(file_item, control_path, control_type)
else:
# we need to generate the control. Unload model if not unloaded
if not has_unloaded:
print("Unloading model to generate controls")
self.sd.set_device_state_preset('unload')
has_unloaded = True
if image is None:
# make sure image is loaded if we havent loaded it with another control
image = Image.open(file_item.path).convert('RGB')
image = exif_transpose(image)
# resize to a max of 1mp
max_size = 1024 * 1024
w, h = image.size
if w * h > max_size:
scale = math.sqrt(max_size / (w * h))
w = int(w * scale)
h = int(h * scale)
image = image.resize((w, h), Image.BICUBIC)
save_path = os.path.join(coltrols_folder, f"{file_name_no_ext}.{control_type}.jpg")
os.makedirs(coltrols_folder, exist_ok=True)
if control_type == 'depth':
if self.control_depth_model is None:
from transformers import pipeline
self.control_depth_model = pipeline(
task="depth-estimation",
model="depth-anything/Depth-Anything-V2-Large-hf",
device=device,
torch_dtype=torch.float16
)
img = image.copy()
in_size = img.size
output = self.control_depth_model(img)
out_tensor = output["predicted_depth"] # shape (1, H, W) 0 - 255
out_tensor = out_tensor.clamp(0, 255)
out_tensor = out_tensor.squeeze(0).cpu().numpy()
img = Image.fromarray(out_tensor.astype('uint8'))
img = img.resize(in_size, Image.LANCZOS)
img.save(save_path)
self.add_control_path_to_file_item(file_item, save_path, control_type)
elif control_type == 'pose':
if self.control_pose_model is None:
from controlnet_aux import OpenposeDetector
self.control_pose_model = OpenposeDetector.from_pretrained("lllyasviel/Annotators").to(device)
img = image.copy()
detect_res = int(math.sqrt(img.size[0] * img.size[1]))
img = self.control_pose_model(img, hand_and_face=True, detect_resolution=detect_res, image_resolution=detect_res)
img = img.convert('RGB')
img.save(save_path)
self.add_control_path_to_file_item(file_item, save_path, control_type)
elif control_type == 'line':
if self.control_line_model is None:
from controlnet_aux import TEEDdetector
self.control_line_model = TEEDdetector.from_pretrained("fal-ai/teed", filename="5_model.pth").to(device)
img = image.copy()
img = self.control_line_model(img, detect_resolution=1024)
img = img.convert('RGB')
img.save(save_path)
self.add_control_path_to_file_item(file_item, save_path, control_type)
elif control_type == 'inpaint' or control_type == 'mask':
img = image.copy()
if self.control_bg_remover is None:
from transformers import AutoModelForImageSegmentation
self.control_bg_remover = AutoModelForImageSegmentation.from_pretrained(
'ZhengPeng7/BiRefNet_HR',
trust_remote_code=True,
revision="595e212b3eaa6a1beaad56cee49749b1e00b1596",
torch_dtype=torch.float16
).to(device)
self.control_bg_remover.eval()
image_size = (1024, 1024)
transform_image = transforms.Compose([
transforms.Resize(image_size),
transforms.ToTensor(),
transforms.Normalize([0.485, 0.456, 0.406], [0.229, 0.224, 0.225])
])
input_images = transform_image(img).unsqueeze(0).to('cuda').to(torch.float16)
# Prediction
preds = self.control_bg_remover(input_images)[-1].sigmoid().cpu()
pred = preds[0].squeeze()
pred_pil = transforms.ToPILImage()(pred)
mask = pred_pil.resize(img.size)
if control_type == 'inpaint':
# inpainting feature currently only supports "erased" section desired to inpaint
mask = ImageOps.invert(mask)
img.putalpha(mask)
save_path = os.path.join(coltrols_folder, f"{file_name_no_ext}.{control_type}.webp")
else:
img = mask
img = img.convert('RGB')
img.save(save_path)
self.add_control_path_to_file_item(file_item, save_path, control_type)
else:
raise Exception(f"Error: unknown control type {control_type}")
i += 1
# remove models
self.control_depth_model = None
self.control_pose_model = None
self.control_line_model = None
self.control_bg_remover = None
flush()
# restore device state
if has_unloaded:
self.sd.restore_device_state()
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