a way to compare two images by finding out the degree of difference b/w them

That is a really open ended question that will need a lot of clarification.

For example:

  1. What degree of similarity would you ascribe to these two images? A, B

    These two are from a 'spot the differences' competition and have 10 substantial differences. Elements have changed color; things have changed position.

    How similar do you want to consider the two?

  2. How about these two? A, B

    This is more subtle. The two images are identical in their content, but the color of every pixel in the picture is slightly different. So if you do a simple numerical comparison, they would be rated as 100% different.

    Do you want them assessed as 100% different?

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.

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

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