Update app.py

app.py

@@ -117,6 +117,7 @@ def get_image_features(image):
     base64_image = pil_image_to_base64(image)
     if base64_image in image_cache:
         image_features = image_cache[base64_image]
+        print(f"use cache {base64_image[:10]}")
     else:
         image = image_processor(images=image.convert('RGB'), return_tensors='pt')['pixel_values']
         image_features = visual_encoder.encode_images(image.unsqueeze(0)).squeeze(0) # [L, D]