present the primary colors
red (of the red pixel), green (of the green pixel), and blue (of the blue pixel).</p>
<p>For example, Crr represents red color of the red pixel. Increasing or decreasing Crr amplifies
or attenuates red image components.</p>
<p>Values with two colors mean that the first color is mapped to the pixel of the
second color. For example, Cgr means that green is mapped to the red pixel.</p>
<p>To better understand values affecting two colors, have a look at the Hue - Saturation circle.</p