Update app.py

app.py

@@ -46,7 +46,7 @@ def describe_image(image_array):
     # Excepted output: '<|im_start|>system\nYou are a helpful assistant.<|im_end|>\n<|im_start|>user\n<|vision_start|><|image_pad|><|vision_end|>Describe this image.<|im_end|>\n<|im_start|>assistant\n'
 
     inputs = processor(
-        text=[text_prompt], images=[img_str], padding=True, return_tensors="pt"
+        text=[text_prompt], images=[f"data:image/png;base64,{img_str}"], padding=True, return_tensors="pt"
     )
     inputs = inputs.to("cpu")