图像YUV,R,Gr,Gb,B与明暗渡的关系
图像YUV,R,Gr,Gb,B与明暗度的关系
如题,最近比较困扰于这三者的关系,有没有大神指点下?尤其对R,Gr,Gb,B进行操作,会对画面明暗度造成影响么?或者说画面明暗度就是对R,Gr,Gb,B的数值的改动?
------解决方案--------------------
http://www.codeproject.com/Articles/613798/Colorspaces-and-Conversions
------解决方案--------------------
From RGB to YUV
Y = 0.299R + 0.587G + 0.114B
U = 0.492 (B-Y)
V = 0.877 (R-Y)
或者:
Y = 0.299R + 0.587G + 0.114B
U = -0.147R - 0.289G + 0.436B
V = 0.615R - 0.515G - 0.100B
From YUV to RGB
R = Y + 1.140V
G = Y - 0.395U - 0.581V
B = Y + 2.032U
如题,最近比较困扰于这三者的关系,有没有大神指点下?尤其对R,Gr,Gb,B进行操作,会对画面明暗度造成影响么?或者说画面明暗度就是对R,Gr,Gb,B的数值的改动?
------解决方案--------------------
http://www.codeproject.com/Articles/613798/Colorspaces-and-Conversions
------解决方案--------------------
From RGB to YUV
Y = 0.299R + 0.587G + 0.114B
U = 0.492 (B-Y)
V = 0.877 (R-Y)
或者:
Y = 0.299R + 0.587G + 0.114B
U = -0.147R - 0.289G + 0.436B
V = 0.615R - 0.515G - 0.100B
From YUV to RGB
R = Y + 1.140V
G = Y - 0.395U - 0.581V
B = Y + 2.032U