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#1 yoga999  Icon User is offline

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image processing.

Posted 17 March 2010 - 06:48 AM

can any post the code to compare two images using matlab plzzzzzz....
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Replies To: image processing.

#2 Predictor  Icon User is offline

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Re: image processing.

Posted 17 March 2010 - 11:10 AM

View Postyoga999, on 17 March 2010 - 05:48 AM, said:

can any post the code to compare two images using matlab plzzzzzz....


What, precisely, do you mean when you write "compare" two images?
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#3 javabie  Icon User is offline

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Re: image processing.

Posted 17 March 2010 - 08:18 PM

As Predictor said, what do you mean by compare? Do you want to see if 2 images are same? Then here is a trick.

im1 <- assume an image
im2 <- assume another image

anArray = imabsdiff(im1,im2);
max(max(anArray)) <= if this returns 0 then your image is equal, if it returns any other number then it is not equal.
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#4 yoga999  Icon User is offline

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Re: image processing.

Posted 18 March 2010 - 06:43 AM

2 images are not same..they are just similar..small difference will b there..like same person but with different background in 2 pictures...i know this not simple but plzzz help me..
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#5 yoga999  Icon User is offline

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Re: image processing.

Posted 18 March 2010 - 06:57 AM

can anyone post the code 2 check whether two thumb impressions are same or not in matlab...plzzz help me..
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#6 Predictor  Icon User is offline

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Re: image processing.

Posted 19 March 2010 - 05:13 AM

View Postyoga999, on 18 March 2010 - 05:57 AM, said:

can anyone post the code 2 check whether two thumb impressions are same or not in matlab...plzzz help me..


This is not a simple task, and comparing the images at the pixel level will not generally work. This is usually done by matching up point features ("minutiae") on the fingerprints. You will need to consult a more comprehensive resource than this forum to get sufficient details to build a fingerprint matching system. Here are some quick references on fingerprint features and characterization:

Fingerprint Identification
A minutia-based partial fingerprint recognition system
Fingerprint Minutiae: A Constructive Definition

This post has been edited by Predictor: 19 March 2010 - 05:13 AM

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