libpng error: IDAT: CRC error is random

[geoexploring]

System information (version)

• OpenCV => opencv-python 4.5.3.56
• Operating System / Platform => Windows 64 Bit
• Compiler => VScode or Pycharm

I use cv2.imread() as the input image reading tool for deep learning model training, but 'libpng error: IDAT: CRC error' often occurs during reading and is random, which is annoying because the model often stops training.

The image reading function is：

def read_img(img_path):
    return cv2.imread(img_path, cv2.IMREAD_ANYDEPTH | cv2.IMREAD_ANYCOLOR | cv2.IMREAD_COLOR)

Not sure if this is a hardware problem.
Thanks

[sturkmen72]

probably related pnggroup/libpng#183

[alalek]

Please provide complete minimal reproducer including image data.

[geoexploring]

@alalek ，I converted all PNG into JPG, and the problem was solved.