Sample color -> output as text

[mvijfwinkel]

I want to make a small graph/utility to analyze colors in a HDR image.

Is it possible to sample a color in an image at a certain position, and then output the numerical values to to a text node?

A bit like in the attached example.

[RedRenDev]

If you figure it out, please let me know. I'm trying to find the average color of an image and this would help.