What language and library to use for working with images?

Question

Python

Actually, subject.
It is required to fill layers (or separate pngs) with separate colors and combine them into one image by coordinates. Preferably Python, JS/node.js, but I'm considering other languages ​​as well.

Answer 1

Python: Pillow, OpenCV, scikit-image, numpy

Answer 2

What language

Any
image magick

Answer 3

In node.js sharp
Under python pillow, but if some complex masks and algorithms are needed, then python and opencv are better.
However, there is also opencv for the node, only the result from calling the method may differ, but this is the norm, either one, and the bindings under each language works in its own way) In general, it is better to take a python for opencv