是否有任何算法去除視頻中的光照？

Question

是否有任何算法去除視頻照明？我有一個視頻，其中一些對象太強烈點亮。如何在不破壞整個視頻的情況下從該對象中移除照明？

Answer 1

我猜想，最直接的方法將是這樣的：

for each frame in video 
    convert to HSL 
    select connected pixels which have luminance above a certain threshold 
    convert those areas that are "large" to regions 
    expand regions or soften the region (soft mask, Gaussian blur) 
    mask original image to that area 
    apply either brightness/contrast or histogram equalize on that area 
    overlay back onto original image