Process libjpeg errors the OpenCV way #3314
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currently when some jpeg is corrupted, OpenCV returns empty image. With the proposed patch the program will crash if there is no "catch() {}" statement. I'm sure, many people will not like such a change, especially in the stable version. This patch can not be accepted, sorry. |
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And how to handle these cases? Any verify function? I think this is an important issue! I still observe this issue in OpenCV 3.1. Please reopen. Currently there is no way to detect these corrupted images using imread in python. |
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Errors from libjpeg, specifically "Corrupted JPEG data" messages, are printed to
stderrby the default error handler, making those errors uncatchable. By overwriting theoutput_messagemethod as suggested by the libjpeg docs we can handle those errors like regular OpenCV errors.