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Re^2: Can i Compare two images in perl ?

by deep3101 (Acolyte)
on May 30, 2011 at 18:25 UTC ( #907347=note: print w/replies, xml ) Need Help??


in reply to Re: Can i Compare two images in perl ?
in thread Can i Compare two images in perl ?

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.
  • Comment on Re^2: Can i Compare two images in perl ?

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Re^3: Can i Compare two images in perl ?
by BrowserUk (Pope) on May 30, 2011 at 18:58 UTC
    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,

    If you posted (offsite) a couple of examples. Say, one pair that you want considered substantially similar, and another that want considered substantially different, then you would likely get much better suggestions for how to approach the problem.


    Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
    "Science is about questioning the status quo. Questioning authority".
    In the absence of evidence, opinion is indistinguishable from prejudice.
Re^3: Can i Compare two images in perl ?
by GrandFather (Sage) on May 30, 2011 at 22:00 UTC

    Can you not work with the data that was used to form the image rather than futsing about with image recognition techniques? Sounds like you are trying to apply a solution that is "easy" for humans therefore easy to express in a way people understand, but is very difficult to code. You may be much better describing the problem in a numeric domain which may be harder to think about, but will be much easier to code.

    True laziness is hard work
      The quote was amusing but the technique requires manually comparing many images generated from a software for a technique in bioinformatics, plus the software just gives the output as image files only so no easy way out i guess other than Hard Work..

        Are there no typical examples of the types of image you wish to compare kicking around?


        Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
        "Science is about questioning the status quo. Questioning authority".
        In the absence of evidence, opinion is indistinguishable from prejudice.

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