@Stephen Liu, G'Mic-Qt only solution for this kind of problem. All kind of problems, all kind of solutions.?
A other solution is by using this plugin : https://sourceforge.net/projects/johnlakgimp/
After install, find it in the gimp menu : Colors / Color GradingÂ
A other solution is by using this plugin : https://sourceforge.net/projects/johnlakgimp/
After install, find it in the gimp menu : Colors / Color GradingÂ