Compare Two Images

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What are the properties of an image that can be compared for taking the percentage of matching between two images?
Like std2(), we can take the std2() value of two images and then simply take the percentage of the two. After that we can compare between the two. Is there anything else like this function in matlab? Please help.

Rajesh 
Kolkata
0
Reply Rajesh 4/21/2010 3:21:04 AM

You can take the difference of two images, and draw contours to visualize the difference between images.

Deep

"Rajesh Sarkar" <rajeshsarkar.it@gmail.com> wrote in message <hqlqv0$83a$1@fred.mathworks.com>...
> What are the properties of an image that can be compared for taking the percentage of matching between two images?
> Like std2(), we can take the std2() value of two images and then simply take the percentage of the two. After that we can compare between the two. Is there anything else like this function in matlab? Please help.
> 
> Rajesh 
> Kolkata
0
Reply Deepananthan 11/28/2010 10:19:04 AM


Rajesh Sarkar:
There are lots of things depending on what you want to measure.  For just one example, you could look at optical flow (http://www.csd.uwo.ca/faculty/barron/) to get little vectors of where each pixel moved to.

What are *you* interested in detecting?
0
Reply Image 11/28/2010 2:16:04 PM

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