value of brightness level

asked 2015-08-01 07:50:02 -0600

Syarif Muhammad gravatar image

updated 2015-08-01 08:36:49 -0600

sturkmen gravatar image

how i get value of brightness level? ex : brightness level from this image image description look higher than image description but, how i can look value of both images? so i can compare by value. thanks n sorry for my bad english

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histograms , maybe ?

berak gravatar imageberak ( 2015-08-01 07:53:03 -0600 )edit

also you can look for histograms

sturkmen gravatar imagesturkmen ( 2015-08-01 08:02:19 -0600 )edit

also look cv::mean

sturkmen gravatar imagesturkmen ( 2015-08-01 08:26:37 -0600 )edit

thanks sturkman and berak, cv::mean use mean of RGB or mean of image brightness??

Syarif Muhammad gravatar imageSyarif Muhammad ( 2015-08-01 23:34:20 -0600 )edit

@Syarif, you seem to expect, that there is a magical "image brightness" value somewhere, - not so. there are only pixels. (and you can work on rgb, grayscale, hsv and a lot more. just try, what works best in your case)

berak gravatar imageberak ( 2015-08-02 00:49:51 -0600 )edit
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