Update README.md

README.md

@@ -42,6 +42,7 @@ if cache_position[0] != 0:
 3. Install latest transformers from source `pip install -e .`
 4. `pip install qwen-vl-utils`
 
+> QWen vision encoder may take high GPU memory if the input image is large. Adjust  `'resized_height':680 , 'resized_width':680` (see below) to fit VRAM based on GPU resources.
 
 ## How to Use the Model