computer vision - Mathematical comparison of various image enhancement techniques on an image? -


i want know various ways compare same image enhanced various image enhancement techniques not visually mathematically?

for example: (i) may (i not sure) 1 @ histograms , calculate variance of them. 1 highest variance might best technique? or

(ii) randomly, pick local region in enhanced images , compute again variance or @ difference of max. , min. values of local region. 1 highest variance or difference might best?

thanks lot.

it depends on sort of enhancement looking at.

for example, likes of denoising , deblurring, psnr , mse might appropriate, when have access groundtruth images can compare enhanced image against.

aesthetic enhancement on other hand might harder quantify requires degree of subjectivity. highly cited work in area is: studying aesthetic in photographic images using computational approach can check out citations therein relevant references.


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