I download the "Acp.png" picture from the internet, and I want to turn it to gray picture. But when I try to imshow it, the picture distorted, and there is a warning showing that"iCCP: known incorrect sRGB profile". I just don't know why, who can help explain it? Thanks! enter image description here
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2Possible duplicate of [libpng warning: iCCP: known incorrect sRGB profile](http://stackoverflow.com/questions/22745076/libpng-warning-iccp-known-incorrect-srgb-profile) – unutbu Jun 21 '16 at 13:18
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Thank you, but my code is in OpenCV, it seems not the same situation. And I can't understand. – jjyue Jun 21 '16 at 13:24