biano/coma

Library to convert colors between the RGB, XYZ, and Lab colorspaces, and to calculate color distance metrics such as CIE76 and CIE94

1.1.0 2024-06-18 10:42 UTC

Requires

• php: ^8.1

Requires (Dev)

• biano/coding-standard: ^4.1
• ergebnis/composer-normalize: ^2.43
• phpstan/phpstan: ^1.11
• phpunit/phpunit: ^11.0
• roave/security-advisories: dev-latest
• shipmonk/composer-dependency-analyser: ^1.5
• squizlabs/php_codesniffer: ^3.10

MIT

• Dan Michael O. Heggø
• Biano team

• color
• color distance
• color conversion

README

Php library to convert between sRGB, XYZ, and Lab color spaces, and calculate various color distance metrics (delta E).

Currently CIE76, CIE94 and CIEDE2000 are implemented.

use Biano\Coma\ColorDistance;
use Biano\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() . '.';