Update app.py

app.py

@@ -5,6 +5,29 @@ from einops import rearrange
 from torchvision.transforms import Compose
 import torchvision
 
+class CMYKToRGB(object):
+    def __call__(self, img):
+        # Ensure that the input is a PIL Image
+        if not isinstance(img, torch.Tensor):
+            raise TypeError("Input image should be a torch.Tensor")
+
+        # Ensure that the image has 4 channels (CMYK)
+        if img.shape[-3] != 4:
+            return img
+
+        # Extract CMYK channels
+        c, m, y, k = img.unbind(-3)
+
+        # CMYK to RGB transformation
+        r = 255 * (1 - c) * (1 - k)
+        g = 255 * (1 - m) * (1 - k)
+        b = 255 * (1 - y) * (1 - k)
+
+        # Stack RGB channels
+        rgb_img = torch.stack([r, g, b], dim=-3)
+
+        return rgb_img
+
 classes = ['Acanthostichus',
            'Aenictus',
            'Amblyopone',