/**
* Set color image filter
*
* @param string $colorImageFilter
*
* @throws \InvalidArgumentException
*
* @return $this
*/
public function setColorImageFilter($colorImageFilter)
{
$colorImageFilter = ltrim($colorImageFilter, '/');
if (!in_array($colorImageFilter, ColorAndGrayImageFilter::values())) {
throw new \InvalidArgumentException('Invalid color image filter argument');
}
$this->setArgument(sprintf('-dColorImageFilter=/%s', $colorImageFilter));
return $this;
}
public function testValues()
{
$values = [ColorAndGrayImageFilter::DCT_ENCODE, ColorAndGrayImageFilter::FLATE_ENCODE];
$this->assertEquals($values, ColorAndGrayImageFilter::values());
}
