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<?php
namespace Scene7\Commands\Layer;
trait Noise
{
public function setNoise($value, $distribution = null, $monochrome = null)
{
$value = (int) $value;
if ($value < 0 || $value > 100) {
throw new \InvalidArgumentException('Invalid value');
}
if ($distribution !== null && !in_array($distribution, $this->getAllowedNoiseDistributions())) {
throw new \InvalidArgumentException('Invalid distribution');
}
$noise = $value;
if ($distribution !== null || $monochrome !== null) {
$noise .= ','. ($distribution ?: 'uniform');
}
if ($monochrome !== null) {
$noise .= ',' . (int) (bool) $monochrome;
}
$this->addCommand(['op_noise' => $noise]);
return $this;
}
public function getAllowedNoiseDistributions()
{
return ['uniform', 'gaussian'];
}
}