JavaScript to store color from selection

Hi, I'm looking for a way to do this with a script but didn't know if it's possible : 

- From a selected image with a path, 

- made a selection from the path

- then looking inside the selection and give the value of the dominant color, 

with the values in high range, middle range and low range.

(this what I'm looking in particular : identify the color inside the selection in the low, middle and high range)

Store the values to adjust others images with this values ( apply the values stored)

Do you thing it's possible to made it ? 

In fact, the finality is to do this : from reference image take the value of the color and then adjust all others images with the correct color in the selection.

Regards, Christian