Update app.py

app.py

@@ -47,7 +47,7 @@ def predict_and_explain(img):
         pred_name = class_names[pred_idx]
 
     targets = [ClassifierOutputTarget(pred_idx)]
-    cam = GradCAMPlusPlus(model=model, target_layers=[model.blocks[-1][-1]], use_cuda=False)
+    cam = GradCAMPlusPlus(model=model, target_layers=[model.blocks[-1][-1]])
     grayscale_cam = cam(input_tensor=input_tensor, targets=targets)[0]
 
     image_np = np.array(image_pil).astype(np.float32) / 255.0