Create app.py

app.py

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+import torch
+import gradio as gd
+import torch.nn as nn
+import torch.nn.functional as F
+from torch.nn import init
+from PIL import Image
+import torchvision.transforms as transforms
+
+'''MobileNetV3 in PyTorch.
+
+See the paper "Inverted Residuals and Linear Bottlenecks:
+Mobile Networks for Classification, Detection and Segmentation" for more details.
+'''
+
+
+
+class hswish(nn.Module):
+    def forward(self, x):
+        out = x * F.relu6(x + 3, inplace=True) / 6
+        return out
+
+
+class hsigmoid(nn.Module):
+    def forward(self, x):
+        out = F.relu6(x + 3, inplace=True) / 6
+        return out
+
+
+class SeModule(nn.Module):
+    def __init__(self, in_size, reduction=4):
+        super(SeModule, self).__init__()
+        self.se = nn.Sequential(
+            nn.AdaptiveAvgPool2d(1),
+            nn.Conv2d(in_size, in_size // reduction, kernel_size=1, stride=1, padding=0, bias=False),
+            nn.BatchNorm2d(in_size // reduction),
+            nn.ReLU(inplace=True),
+            nn.Conv2d(in_size // reduction, in_size, kernel_size=1, stride=1, padding=0, bias=False),
+            nn.BatchNorm2d(in_size),
+            hsigmoid()
+        )
+
+    def forward(self, x):
+        return x * self.se(x)
+
+
+class Block(nn.Module):
+    '''expand + depthwise + pointwise'''
+    def __init__(self, kernel_size, in_size, expand_size, out_size, nolinear, semodule, stride):
+        super(Block, self).__init__()
+        self.stride = stride
+        self.se = semodule
+
+        self.conv1 = nn.Conv2d(in_size, expand_size, kernel_size=1, stride=1, padding=0, bias=False)
+        self.bn1 = nn.BatchNorm2d(expand_size)
+        self.nolinear1 = nolinear
+        self.conv2 = nn.Conv2d(expand_size, expand_size, kernel_size=kernel_size, stride=stride, padding=kernel_size//2, groups=expand_size, bias=False)
+        self.bn2 = nn.BatchNorm2d(expand_size)
+        self.nolinear2 = nolinear
+        self.conv3 = nn.Conv2d(expand_size, out_size, kernel_size=1, stride=1, padding=0, bias=False)
+        self.bn3 = nn.BatchNorm2d(out_size)
+
+        self.shortcut = nn.Sequential()
+        if stride == 1 and in_size != out_size:
+            self.shortcut = nn.Sequential(
+                nn.Conv2d(in_size, out_size, kernel_size=1, stride=1, padding=0, bias=False),
+                nn.BatchNorm2d(out_size),
+            )
+
+    def forward(self, x):
+        out = self.nolinear1(self.bn1(self.conv1(x)))
+        out = self.nolinear2(self.bn2(self.conv2(out)))
+        out = self.bn3(self.conv3(out))
+        if self.se != None:
+            out = self.se(out)
+        out = out + self.shortcut(x) if self.stride==1 else out
+        return out
+
+class MobileNetV3_Small(nn.Module):
+    def __init__(self, num_classes= 30):
+        super(MobileNetV3_Small, self).__init__()
+        self.conv1 = nn.Conv2d(3, 16, kernel_size=3, stride=2, padding=1, bias=False)
+        self.bn1 = nn.BatchNorm2d(16)
+        self.hs1 = hswish()
+
+        self.bneck = nn.Sequential(
+            Block(3, 16, 16, 16, nn.ReLU(inplace=True), SeModule(16), 2),
+            Block(3, 16, 72, 24, nn.ReLU(inplace=True), None, 2),
+            Block(3, 24, 88, 24, nn.ReLU(inplace=True), None, 1),
+            Block(5, 24, 96, 40, hswish(), SeModule(40), 2),
+            Block(5, 40, 240, 40, hswish(), SeModule(40), 1),
+            Block(5, 40, 240, 40, hswish(), SeModule(40), 1),
+            Block(5, 40, 120, 48, hswish(), SeModule(48), 1),
+            Block(5, 48, 144, 48, hswish(), SeModule(48), 1),
+            Block(5, 48, 288, 96, hswish(), SeModule(96), 2),
+            Block(5, 96, 576, 96, hswish(), SeModule(96), 1),
+            Block(5, 96, 576, 96, hswish(), SeModule(96), 1),
+        )
+
+
+        self.conv2 = nn.Conv2d(96, 576, kernel_size=1, stride=1, padding=0, bias=False)
+        self.bn2 = nn.BatchNorm2d(576)
+        self.hs2 = hswish()
+        self.linear3 = nn.Linear(576, 1280)
+        self.bn3 = nn.BatchNorm1d(1280)
+        self.hs3 = hswish()
+        self.linear4 = nn.Linear(1280, num_classes)
+        self.init_params()
+
+    def init_params(self):
+        for m in self.modules():
+            if isinstance(m, nn.Conv2d):
+                init.kaiming_normal_(m.weight, mode='fan_out')
+                if m.bias is not None:
+                    init.constant_(m.bias, 0)
+            elif isinstance(m, nn.BatchNorm2d):
+                init.constant_(m.weight, 1)
+                init.constant_(m.bias, 0)
+            elif isinstance(m, nn.Linear):
+                init.normal_(m.weight, std=0.001)
+                if m.bias is not None:
+                    init.constant_(m.bias, 0)
+
+    def forward(self, x):
+        out = self.hs1(self.bn1(self.conv1(x)))
+        out = self.bneck(out)
+        out = self.hs2(self.bn2(self.conv2(out)))
+        out = F.avg_pool2d(out, 7)
+        out = out.view(out.size(0), -1)
+        out = self.hs3(self.bn3(self.linear3(out)))
+        out = self.linear4(out)
+        return out
+
+
+
+"""creating modelinstance"""
+model = MobileNetV3_Small().to("cpu")
+model.load_state_dict( torch.load("MobileNet3_small_full.pth"))
+classes = ['antelope',
+ 'buffalo',
+ 'chimpanzee',
+ 'cow',
+ 'deer',
+ 'dolphin',
+ 'elephant',
+ 'fox',
+ 'giant+panda',
+ 'giraffe',
+ 'gorilla',
+ 'grizzly+bear',
+ 'hamster',
+ 'hippopotamus',
+ 'horse',
+ 'humpback+whale',
+ 'leopard',
+ 'lion',
+ 'moose',
+ 'otter',
+ 'ox',
+ 'pig',
+ 'polar+bear',
+ 'rabbit',
+ 'rhinoceros',
+ 'seal',
+ 'sheep',
+ 'squirrel',
+ 'tiger',
+ 'zebra']
+
+def predicts(img):
+    model.eval()
+    with torch.inference_mode:
+        logits = model(img.unsqueez(dim=0))
+        preds = logits.argmax(dim=1)
+        return classes[preds]
+
+"""gradio inteface"""
+demo = gd.Interface(predicts ,gd.Image("Image", width=244, height=244, image_mode="RGB", ))
+
+
+"""launch interface"""
+if __name__ == "__main__":
+    demo.launch()