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# Copyright (c) OpenMMLab. All rights reserved.
import os.path as osp
import random
import mmcv
import numpy as np
from mmcv.utils import print_log
from mmseg.datasets.builder import DATASETS
from mmseg.datasets.custom import CustomDataset
from mmseg.utils import get_root_logger
from PIL import Image
@DATASETS.register_module(force=True)
class ADE20KDataset(CustomDataset):
"""ADE20K dataset.
In segmentation map annotation for ADE20K, 0 stands for background, which
is not included in 150 categories. ``reduce_zero_label`` is fixed to True.
The ``img_suffix`` is fixed to '.jpg' and ``seg_map_suffix`` is fixed to
'.png'.
"""
CLASSES = (
'wall', 'building', 'sky', 'floor', 'tree', 'ceiling', 'road', 'bed ',
'windowpane', 'grass', 'cabinet', 'sidewalk', 'person', 'earth',
'door', 'table', 'mountain', 'plant', 'curtain', 'chair', 'car',
'water', 'painting', 'sofa', 'shelf', 'house', 'sea', 'mirror', 'rug',
'field', 'armchair', 'seat', 'fence', 'desk', 'rock', 'wardrobe',
'lamp', 'bathtub', 'railing', 'cushion', 'base', 'box', 'column',
'signboard', 'chest of drawers', 'counter', 'sand', 'sink',
'skyscraper', 'fireplace', 'refrigerator', 'grandstand', 'path',
'stairs', 'runway', 'case', 'pool table', 'pillow', 'screen door',
'stairway', 'river', 'bridge', 'bookcase', 'blind', 'coffee table',
'toilet', 'flower', 'book', 'hill', 'bench', 'countertop', 'stove',
'palm', 'kitchen island', 'computer', 'swivel chair', 'boat', 'bar',
'arcade machine', 'hovel', 'bus', 'towel', 'light', 'truck', 'tower',
'chandelier', 'awning', 'streetlight', 'booth', 'television receiver',
'airplane', 'dirt track', 'apparel', 'pole', 'land', 'bannister',
'escalator', 'ottoman', 'bottle', 'buffet', 'poster', 'stage', 'van',
'ship', 'fountain', 'conveyer belt', 'canopy', 'washer', 'plaything',
'swimming pool', 'stool', 'barrel', 'basket', 'waterfall', 'tent',
'bag', 'minibike', 'cradle', 'oven', 'ball', 'food', 'step', 'tank',
'trade name', 'microwave', 'pot', 'animal', 'bicycle', 'lake',
'dishwasher', 'screen', 'blanket', 'sculpture', 'hood', 'sconce',
'vase', 'traffic light', 'tray', 'ashcan', 'fan', 'pier', 'crt screen',
'plate', 'monitor', 'bulletin board', 'shower', 'radiator', 'glass',
'clock', 'flag')
PALETTE = [[120, 120, 120], [180, 120, 120], [6, 230, 230], [80, 50, 50],
[4, 200, 3], [120, 120, 80], [140, 140, 140], [204, 5, 255],
[230, 230, 230], [4, 250, 7], [224, 5, 255], [235, 255, 7],
[150, 5, 61], [120, 120, 70], [8, 255, 51], [255, 6, 82],
[143, 255, 140], [204, 255, 4], [255, 51, 7], [204, 70, 3],
[0, 102, 200], [61, 230, 250], [255, 6, 51], [11, 102, 255],
[255, 7, 71], [255, 9, 224], [9, 7, 230], [220, 220, 220],
[255, 9, 92], [112, 9, 255], [8, 255, 214], [7, 255, 224],
[255, 184, 6], [10, 255, 71], [255, 41, 10], [7, 255, 255],
[224, 255, 8], [102, 8, 255], [255, 61, 6], [255, 194, 7],
[255, 122, 8], [0, 255, 20], [255, 8, 41], [255, 5, 153],
[6, 51, 255], [235, 12, 255], [160, 150, 20], [0, 163, 255],
[140, 140, 140], [250, 10, 15], [20, 255, 0], [31, 255, 0],
[255, 31, 0], [255, 224, 0], [153, 255, 0], [0, 0, 255],
[255, 71, 0], [0, 235, 255], [0, 173, 255], [31, 0, 255],
[11, 200, 200], [255, 82, 0], [0, 255, 245], [0, 61, 255],
[0, 255, 112], [0, 255, 133], [255, 0, 0], [255, 163, 0],
[255, 102, 0], [194, 255, 0], [0, 143, 255], [51, 255, 0],
[0, 82, 255], [0, 255, 41], [0, 255, 173], [10, 0, 255],
[173, 255, 0], [0, 255, 153], [255, 92, 0], [255, 0, 255],
[255, 0, 245], [255, 0, 102], [255, 173, 0], [255, 0, 20],
[255, 184, 184], [0, 31, 255], [0, 255, 61], [0, 71, 255],
[255, 0, 204], [0, 255, 194], [0, 255, 82], [0, 10, 255],
[0, 112, 255], [51, 0, 255], [0, 194, 255], [0, 122, 255],
[0, 255, 163], [255, 153, 0], [0, 255, 10], [255, 112, 0],
[143, 255, 0], [82, 0, 255], [163, 255, 0], [255, 235, 0],
[8, 184, 170], [133, 0, 255], [0, 255, 92], [184, 0, 255],
[255, 0, 31], [0, 184, 255], [0, 214, 255], [255, 0, 112],
[92, 255, 0], [0, 224, 255], [112, 224, 255], [70, 184, 160],
[163, 0, 255], [153, 0, 255], [71, 255, 0], [255, 0, 163],
[255, 204, 0], [255, 0, 143], [0, 255, 235], [133, 255, 0],
[255, 0, 235], [245, 0, 255], [255, 0, 122], [255, 245, 0],
[10, 190, 212], [214, 255, 0], [0, 204, 255], [20, 0, 255],
[255, 255, 0], [0, 153, 255], [0, 41, 255], [0, 255, 204],
[41, 0, 255], [41, 255, 0], [173, 0, 255], [0, 245, 255],
[71, 0, 255], [122, 0, 255], [0, 255, 184], [0, 92, 255],
[184, 255, 0], [0, 133, 255], [255, 214, 0], [25, 194, 194],
[102, 255, 0], [92, 0, 255]]
def __init__(self, max_image_num=None, **kwargs):
super(ADE20KDataset, self).__init__(
img_suffix='.jpg',
seg_map_suffix='.png',
reduce_zero_label=True,
**kwargs)
if max_image_num is not None:
random.shuffle(self.img_infos)
self.img_infos = self.img_infos[:max_image_num]
print_log(f'Randomly select {len(self.img_infos)} images', logger=get_root_logger())
def results2img(self, results, imgfile_prefix, to_label_id, indices=None):
"""Write the segmentation results to images.
Args:
results (list[ndarray]): Testing results of the
dataset.
imgfile_prefix (str): The filename prefix of the png files.
If the prefix is "somepath/xxx",
the png files will be named "somepath/xxx.png".
to_label_id (bool): whether convert output to label_id for
submission.
indices (list[int], optional): Indices of input results, if not
set, all the indices of the dataset will be used.
Default: None.
Returns:
list[str: str]: result txt files which contains corresponding
semantic segmentation images.
"""
if indices is None:
indices = list(range(len(self)))
mmcv.mkdir_or_exist(imgfile_prefix)
result_files = []
for result, idx in zip(results, indices):
filename = self.img_infos[idx]['filename']
basename = osp.splitext(osp.basename(filename))[0]
png_filename = osp.join(imgfile_prefix, f'{basename}.png')
# The index range of official requirement is from 0 to 150.
# But the index range of output is from 0 to 149.
# That is because we set reduce_zero_label=True.
result = result + 1
output = Image.fromarray(result.astype(np.uint8))
output.save(png_filename)
result_files.append(png_filename)
return result_files
def format_results(self,
results,
imgfile_prefix,
to_label_id=True,
indices=None):
"""Format the results into dir (standard format for ade20k evaluation).
Args:
results (list): Testing results of the dataset.
imgfile_prefix (str | None): The prefix of images files. It
includes the file path and the prefix of filename, e.g.,
"a/b/prefix".
to_label_id (bool): whether convert output to label_id for
submission. Default: False
indices (list[int], optional): Indices of input results, if not
set, all the indices of the dataset will be used.
Default: None.
Returns:
tuple: (result_files, tmp_dir), result_files is a list containing
the image paths, tmp_dir is the temporal directory created
for saving json/png files when img_prefix is not specified.
"""
if indices is None:
indices = list(range(len(self)))
assert isinstance(results, list), 'results must be a list.'
assert isinstance(indices, list), 'indices must be a list.'
result_files = self.results2img(results, imgfile_prefix, to_label_id,
indices)
return result_files
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