Pimcore\Image\Adapter\Imagick::trim PHP Method

    public function trim($tolerance)
    {
        $this->preModify();
        $this->resource->trimimage($tolerance);
        $dimensions = $this->getDimensions();
        $this->setWidth($dimensions['width']);
        $this->setHeight($dimensions['height']);
        $this->postModify();
        return $this;
    }