Compiled Matlab MEX function "imread()" cannot open .bmp images.
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Hi,
the Matlab function "Image = imread('File');" works perfectly fine, if you provide a .bmp image. But when compiled to MEX, I get the following error message:
JPEG library error (8 bit), "Not a JPEG file: starts with 0x89 0x50".
Error in imread (line 65)
coder.internal.errorIf(errWarnType == ERROR_MESSAGE_CODE, ...
Studying the generated c-code, the MEX version of 'imread()' seems to only link to the jpeg-library. The MEX version doesn't even accept a second argument like "imread('file', 'bmp')". It would cause a compiler error.
Is the MEX version of imread() even able to open .bmp files? Btw. I'm compiling under Mac environment.
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Accepted Answer
Julianna Mather
on 19 Jul 2018
The imread function currently only supports JPEG files in code generation. We weren't sure which formats would be most useful for codegen customers, but we were pretty sure that JPEG was at the top of the list. :-)
We will consider adding support for additional file formats to imread in future releases of MATLAB and MATLAB Coder.
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