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Thanks for the reply, haven't used Image::Compare myself before but I imagine it's probably due to bitmaps being easy to convert to arrays of pixels, which would be necessary for thresholding, whereas the other formats are compressed so it's more difficult to extract the information; I'm sure someone else can confirm this though

In reply to Re^9: Can i Compare two images in perl ? by The Hindmost
in thread Can i Compare two images in perl ? by deep3101

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