Is there a ready-made function for detecting color in an image?

Question

Canvas

Is there a ready function on canvas? which would take a picture and give a number from 0 to 10, where each number is a color red, green, yellow ....
It would give the digit of the color of which is the most in the picture

Answer 1

https://developer.mozilla.org/ru/docs/Web/API/Canv...
Well, then just go through and calculate