Calculate various color distance metrics (delta E) such as CIE76 and CIE94
MIT License
Php library to convert between sRGB, XYZ, and Lab color spaces, and calculate various color distance metrics (delta E). Currently CIE76 and CIE94 are implemented, but I plan to implement more.
use Danmichaelo\Coma\ColorDistance,
Danmichaelo\Coma\sRGB;
$color1 = new sRGB(1, 5, 250);
$color2 = new sRGB(0, 0, 208);
$cd = new ColorDistance;
$cie94 = $cd->cie94($color1, $color2);
echo 'The CIE94 ∆E is ' . $cie94 . ' between ' . $color1->toHex() . ' and ' . $color2->toHex() . '.';