image_vignetting

去图像暗角/光晕

《Single-Image Vignetting Correction by Constrained Minimization of log-Intensity Entropy》

效果

参考

1. https://www.cnblogs.com/Imageshop/p/6166394.html
2. https://blog.csdn.net/piaoxuezhong/article/details/78333838
3. https://blog.csdn.net/lz0499/article/details/82054651