These matrices may also be used to transform RGB colors, to scale RGB colors, and to controlhue, saturation and contrast.
这些矩阵也可用于转换rgb颜色，规模RGB颜色，并控制色调，饱和度和对比度。
2
Targetted Eyedropper Samples add a new dimension to color correction by injecting curve control points to achieve a specified target color, neutral color, or hue.