Fig. 4
From: Low-light image restoration using bright channel prior-based variational Retinex model
![Fig. 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13640-017-0192-3/MediaObjects/13640_2017_192_Fig4_HTML.gif)
a–f A set of six test images to evaluate the enhancement performance
From: Low-light image restoration using bright channel prior-based variational Retinex model
a–f A set of six test images to evaluate the enhancement performance