actually kind of both to some extent... actually they are graphs generated from some source and have background of many greyish curves but an average curve derived from the constituents is formed in a prominent colour, so i need to find similarity/difference(threshold level would do) between them even if a single colour channel is considered i think my purpose will be solved.

In reply to Re^2: Can i Compare two images in perl ? by deep3101
in thread Can i Compare two images in perl ? by deep3101

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