Colour Calibration (channel mixer question)

[priort (Todd Prior)]

Please help me to understand "Channel Mixer"

@tstoddard - don’t get too caught up in the idea of color models/spaces just yet. It can be counter-intuitive to wrap your head around but at the end of the day the biggest things to keep in mind is adjusting each channel in the mixer (red, green, or blue) will only adjust how “bright” that particular color is. You won’t be adding any other colors into the mix. The channel mixer only let’s you adjust how intense that particular color is. Hopefully I can clear this up. Let’s consider four…

and

Please help me to understand "Channel Mixer"

Any slider in the Red channel can only affect the R value of your output pixel. Likewise, any slider in the Green channel can only affect the G value of the output pixel, and any slider in the Blue channel can only affect the B value of the output pixel. Your input values are R50 G200 B10 Normally the Red channel sliders are R100 G0 B0 this means 100% of 50 + 0% of 200 + 0% of 10. Output R=50 the Green channel sliders are R0 G100 B0 this means 0% of 50 + 100% of 200 + 0% of 10. Output G=200 …