MATLAB: How to calculate enhancement factor for an image

Question

I am doing a project related to dark image ehancement using local and global enhancment.For that i need to caluculate a MEF(measure of enhancment factor) but i afailed to find the program/formula for it. Is there any alternative to find the enhancement factor.

Answer 1

Image Enhancement Factor (IEF)=MSE(Original Image, Noise Image) / MSE (Original Image, Restored Image)

I hope you can easily implement in Matlab, for detail you can check this leterature

Or check here the matlab code

Or here it is, nore simply, you have three image, original_image, noisy_image and restored_image

MSE1=immse(original_image, noisy_image);
MSE2=immse(original_image, restored_image);
IEF=MSE1/MSE2;
fprintf('The Image Enhancement Factor is %.2f',IEF);