Colorize
Change the values for red, green and blue in an image.
Parameters
red
The amount of red colors. >= -100 and <= -1 to reduce. 0 for no change. >= 1 and <= 100 to add.
green
The amount of green colors. >= -100 and <= -1 to reduce. 0 for no change. >= 1 and <= 100 to add.
blue
The amount of blue colors. >= -100 and <= -1 to reduce. 0 for no change. >= 1 and <= 100 to add.
Examples
use Grafika\Grafika; // Import package
//...
$filter = Grafika::createFilter('Colorize', -50, -50, -50);
$editor->apply( $image, $filter ); // Apply it to an image
Test image:

Result:
