finding EME of an image

I have an image I need to find the the measure of enhancement(EME) .How can find that. If I use use the following equatios how will get the value.

Answer 1

[Rajat Tewari]

You can try this file from MATLAB file exchange to find EME of an image:

https://in.mathworks.com/matlabcentral/fileexchange/29500-image-error-measurements

Hope it helps.