title: libpng error: iTXt: chunk data is too large, cv2.imread, opencv
body: <p>when i run the code i get the error message:</p>
  <pre><code>libpng error: iTXt: chunk data is too large
  </code></pre>
  <hr />
  <pre><code>filename = 'path_file'  # size file 34 MB, PNG
  image = cv2.imread(filename,cv2.IMREAD_UNCHANGED)
  print(image)  # None
  </code></pre>
  <p>above is my python code with the help of everyone, thanks!</p>