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

    public function save($path, $format = null, $quality = null)
    {
        if (!$format) {
            $format = "png32";
        }
        $format = strtolower($format);
        if ($format == "png") {
            // we need to force imagick to create png32 images, otherwise this can cause some strange effects
            // when used with gray-scale images
            $format = "png32";
        }
        if ($format == "original") {
            $format = strtolower($this->resource->getImageFormat());
        }
        $originalFilename = null;
        if (!$this->reinitializing) {
            if ($this->getUseContentOptimizedFormat()) {
                $format = "jpeg";
                if ($this->hasAlphaChannel()) {
                    $format = "png32";
                }
            }
        }
        $i = $this->resource;
        // this is because of HHVM which has problems with $this->resource->writeImage();
        if (in_array($format, ["jpeg", "pjpeg", "jpg"]) && $this->isAlphaPossible) {
            // set white background for transparent pixels
            $i->setImageBackgroundColor("#ffffff");
            // Imagick version compatibility
            $alphaChannel = 11;
            // This works at least as far back as version 3.1.0~rc1-1
            if (defined("Imagick::ALPHACHANNEL_REMOVE")) {
                // Imagick::ALPHACHANNEL_REMOVE has been added in 3.2.0b2
                $alphaChannel = \Imagick::ALPHACHANNEL_REMOVE;
            }
            $i->setImageAlphaChannel($alphaChannel);
            $i->mergeImageLayers(\Imagick::LAYERMETHOD_FLATTEN);
        }
        if (!$this->isPreserveMetaData()) {
            $i->stripImage();
        }
        if (!$this->isPreserveColor()) {
            $i->profileImage('*', null);
        }
        $i->setImageFormat($format);
        if ($quality && !$this->isPreserveColor()) {
            $i->setCompressionQuality((int) $quality);
            $i->setImageCompressionQuality((int) $quality);
        }
        if ($format == "tiff") {
            $i->setCompression(\Imagick::COMPRESSION_LZW);
        }
        // force progressive JPEG if filesize >= 10k
        // normally jpeg images are bigger than 10k so we avoid the double compression (baseline => filesize check => if necessary progressive)
        // and check the dimensions here instead to faster generate the image
        // progressive JPEG - better compression, smaller filesize, especially for web optimization
        if ($format == "jpeg" && !$this->isPreserveColor()) {
            if ($this->getWidth() * $this->getHeight() > 35000) {
                $i->setInterlaceScheme(\Imagick::INTERLACE_PLANE);
            }
        }
        // Imagick isn't able to work with custom stream wrappers, so we make a workaround
        $realTargetPath = null;
        if (!stream_is_local($path)) {
            $realTargetPath = $path;
            $path = PIMCORE_SYSTEM_TEMP_DIRECTORY . "/imagick-tmp-" . uniqid() . "." . File::getFileExtension($path);
        }
        if (defined("HHVM_VERSION")) {
            $success = $i->writeImage($path);
        } else {
            $success = $i->writeImage($format . ":" . $path);
        }
        if (!$success) {
            throw new \Exception("Unable to write image: ", $path);
        }
        if ($realTargetPath) {
            File::rename($path, $realTargetPath);
        }
        return $this;
    }