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<?php
namespace Imagecow\Utils;
/**
* Generic color conversions functions.
*/
class Color
{
* Returns a YUV weighted greyscale value.
*
* @param int $r
* @param int $g
* @param int $b
* @return int
* @see http://en.wikipedia.org/wiki/YUV
public static function rgb2bw($r, $g, $b)
return ($r * 0.299) + ($g * 0.587) + ($b * 0.114);
}
oscarotero /
imagecow
