is this code give me compression?

sir is this m file gives me compression??

Answer 1

[Walter Roberson]

Yes.

[Jitesh Bhanushali]

thanku sir sir how can i find mse and psnr in this code??

[Jitesh Bhanushali]

sir where exactly the compression takes place?? how to find compression ratio

Answer 2

[Image Analyst]

From the help of the Image Processing Toolbox:

psnr

Peak Signal-to-Noise Ratio (PSNR) expand all in page
Syntax
peaksnr = psnr(A,ref)example
peaksnr = psnr(A,ref,peakval)
[peaksnr,snr] = psnr(___)
Description
example
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.

peaksnr = psnr(A,ref,peakval) uses peakval as the peak signal value for calculating the peak signal-to-noise ratio for image A.

[peaksnr,snr] = psnr(___) returns the simple signal-to-noise ratio, snr, in addition to the peak signal-to-noise ratio.

[Image Analyst]

If you don't have that toolbox, I attach my demo.

[Jitesh Bhanushali]

sir i got MSE=0 and psnr=inf