Hi I can't find the answer with google so I'm posting here. I would like to know how to check if a jpeg is a black and white image.
Can one do it with GD or other library available from CPAN?
Right now I'm using PerlMagick. But I would prefer a pure perl solution as PM is rather slow and I am using only one function from the whole API it has to offer.

Thank you for any suggestions

In reply to check if image is monochromatic by frugofrog

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