how can calculate intensity and contrast in RGB and grayscale image?

how can calculate intensity and contrast in RGB and grayscale image?

Answer 1

[Walter]

I can... Thanks for asking..

FYI I am not the 'Walter Roberson' of the forum.. WE really should have distinct display names..

Answer 2

[Image Analyst]

I can too. Though in RGB color images you more often use Delta E than "contrast". Both of those terms (intensity and contrast) may have multiple meanings depending on who you're talking to and what the context is.