import cv2img=cv2imreadlenajpgcv2IMREAD_REDUCED_COLOR_2cv2imshowlenaimginput图片未响应

If the image is not responding, it may be due to the image file not being found or the image being corrupted. Make sure that the image file 'lena.jpg' is located in the same directory as the Python script. You can also try using the full path of the image file to load it. Additionally, check if the OpenCV library is properly installed and updated.