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Re: BMP: Drawing or photograph?

by daxim (Chaplain)
on Oct 29, 2012 at 11:32 UTC ( #1001346=note: print w/replies, xml ) Need Help??

in reply to BMP: Drawing or photograph?

I am not a computer vision expert. Here's how I would do it:

Load some representative target images into Mathematica or similar program and try out various filters. Start with transformations related to edge-detection or finding continous areas of colour and brightness. Visit if you need help.

When you have found a filter or combination of filters that correctly recognise to a high confidence whether an image is suitable for JPEG compression or not, recreate them in Perl. Binding to various imaging toolkits written in C are available, so this shouldn't be too complicated. The filter (pipeline) simply returns a boolean, use PNG or JPEG output format accordingly.

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