How to color a gray image using php?

Question

PHP

Tell me which way to dig. There are blank images in the form of three-dimensional figures.
In a graphics editor, you can easily repaint them in any color while maintaining highlights and volume. I decided to transfer, automate, this process to php. The simplest solution is to make the object gray and then "paint" it.
I thought to use GD, but all "native" GD filters are rather primitive.
There is an algorithm for "color shift" around the color wheel. Close, but not that.

Answer 1

https://php.ru/manual/imagick.colorizeimage.html

Answer 2

See imagine.readthedocs.io/en/latest/.
You may have to make the final picture from several pre-processed blanks.