How To Find The Simillar Image From Couple Of Images

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I Want Say That I Have Number Of Documents Like Scanned Passport Or I-Cards Or Similar Like This..
Now My Problem Is That Some Documents Are Same But They Are Scanned At Different Angle Or Different Position Of The Scanner ,The Documents May Be Same But Flipped So I Have To Identify That Kind Of Repetitively Documents.. There Will Be Noise(Dark Spots) In The Images..
Then How Can I Identify This Kind Of Repetitively Documents..?

Posted 26-Mar-14 20:05pm

Nisarg Desai

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CHill60 · Answer 1 · 2014-03-29T05:36:00

Have a look at this CodeProject article Simple image comparison in .NET[^]

There are more links in CodeProject e.g. Image comparing algorithm[^]

and also on StackOverflow http://stackoverflow.com/questions/843972/image-comparison-fast-algorithm[^]

Have a look and see which one of the options suits you best.

This is potentially a huge subject ... more research material here[^]