Hi all, I am trying to calculate NPCR value and UACI value of an RGB image to do a statistical analysis of an image scrambling method. Please help.
First extract the red, green and blue components and then calculate NPCR and UACI values for each of them. There would be 3 different NPCR and UACI values for an RGB image, each for red, green and blue component..
A sample Matlab code to calculate NPCR and UACI can be found on the link-
http://www.shafaliagarwal.com/npcr-and-uaci-of-image-matlab-code/
Please click on the given link to see the code:
http://www.codetoship.com/npcr-and-uaci-of-image-matlab-code/
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