Method: Most used color

[lorvent]

Hello, Great library, want to use for some batch operations on cli.

do you have any plans to add to find which color is most used in an image?

Thanks.

[claviska]

We talked about this in #27. Two problems that still exist are licensing and overhead.

It's easy enough to use color-thief-php on its own, so doubling the size of SimpleImage just to support one feature and having to worry about licensing conflicts isn't really worth it at this point.

[lorvent]

why we need to use that package code?

its a simple code where we have to find color of each pixel then find out which is used most,

there are many examples exists in SO aswell.

infact i never know about that package too.

[claviska]

1. The license is incompatible.
2. Finding the dominant color involves more than just counting the most frequently used color values. That's easy to do, but it's not useful in a real world application. There are flaws with that method, for example, antialiasing will cause pixels to be visually similar but not the same color value. A proper solution will normalize visually similar colors, which is especially important for photographs and JPEG images.

The library I linked to is a fork of color-thief. You can see how well the dominant color and palettes are generated in the demo. It uses quantize.js to achieve spot on results.

To use color-thief-php, simply require it:

composer require ksubileau/color-thief-php

And grab the dominant color like this:

$dominantColor = \ColorThief\ColorThief::getColor($image);

To get a full color palette, do this instead:

$palette = \ColorThief\ColorThief::getPalette($image, 8);