MATLAB: Normalize image from -0.5 – 1.3 to 0 – 1

Question

Hello,

I am processing an image through some filters and get the image with min value =-0.5014 and max=1.38. I would like to normalize it between 0-1 for comparative analysis using SSIM PSNR. The mat2gray function distorts the image. Please suggest how to work around this problem.

Thanks

Answer 1

Try this

im_nrom = (im - min_val)./(max_val - min_val)