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lumi_chro
- 针对YUV422图像格式的luma(灰度)和chroma(色彩)修正的源代码
101259378luv_rgb_yuv_lab_space
- Convert a color image between color representations. B = COLORSPACE(S,A) converts the color representation of image A where S is a string specifying the conversion. S tells the source and destination color spaces, S = dest<-src , or alte
YCrCb_detect
- YCrCb即YUV,其中“Y”表示明亮度(Luminance或Luma),也就是灰阶值;而“U”和“V” 表示的则是色度(Chrominance或Chroma),作用是描述影像色彩及饱和度,用于指定像素的颜色。“亮度”是透过RGB输入信号来建立的,方法是将RGB信号的特定部分叠加到一起。“色度”则定义了颜色的两个方面─色调与饱和度,分别用Cr和CB来表示。其中,Cr反映了RGB输入信号红色部分与RGB信号亮度值之间的差异。而CB反映的是RGB输入信号蓝色部分与RGB信号亮度值之间的差异。-YCr
RGBtoYcbcr
- Convert RGB color values to YCbCr color space. used as a part of the color image pipeline in video and digital photography systems. Y′ is the luma component and CB and CR are the blue-difference and red-difference chroma components. Y′ (with prime)