Update app.py

app.py

@@ -1,8 +1,11 @@
 import gradio as gr
 from PIL import Image
-import cv2
 
-size = 128
+def preprocess_image(image, size=128):
+    image = image.resize((size, size))
+    image = image.convert("L")
+    image = np.array(image) / 255.0
+    return image
 
 def conv_block(input, num_filters):
     conv = Conv2D(num_filters, (3, 3), activation="relu", padding="same", kernel_initializer='he_normal')(input)