What is the impact of correlation test in Image encryption ?

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Youssef Sbaytri

I recommend this tool for you : NIST statistical test

Aparna Ramdoss

Thank you

Abbas Cheddad

As far as image encryption is concerned, correlation test is not sufficient. It is normally coupled with other tests, see an example of these tests in the paper:

Article A hash-based image encryption algorithm

Sudeept Singh Yadav

Correlation test is also a part of image encryption, we can also perform NPCR, UAIC and MSE test for image encryption.