Update app.py

app.py

@@ -29,7 +29,7 @@ def preprocess_image(img):
     return img
 
 # ✅ 4. Grad-CAM Generation
-def make_gradcam(img_array, model, last_conv_layer_name='Conv2D_1'):
+def make_gradcam(img_array, model, last_conv_layer_name='Conv_1_bn'):
     """Generate Grad-CAM for the given image and model."""
     last_conv_layer = model.get_layer(last_conv_layer_name)
     grad_model = Model(inputs=model.inputs, outputs=[last_conv_layer.output, model.output])