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i wanna know if there is a way to calculate degree of similarity between two images?

Image Analyst
on 3 Feb 2016

ssimval = ssim(A,ref) computes the Structural Similarity Index (SSIM) value for image A using ref as the reference image.

peaksnr = psnr(A,ref) calculates the peak signal-to-noise ratio for the image A, with the image ref as the reference. A and ref must be of the same size and class.

err = immse(X,Y) calculates the mean-squared error (MSE) between the arrays X and Y. X and Y can be arrays of any dimension, but must be of the same size and class.

nor azam
on 10 Sep 2019

can you explain this part:

err = immse(X,Y)

is it use for image A or both A & Ref image?

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