mosbth / cimage

     *

     * @return $this

     */

    public function setJpegQuality($quality = null)

    {

        if ($quality) {

            $this->useQuality = true;

        }

        $this->quality = isset($quality)

            ? $quality

            : self::JPEG_QUALITY_DEFAULT;

        (is_numeric($this->quality) and $this->quality > 0 and $this->quality <= 100)

            or $this->raiseError('Quality not in range.');

        $this->log("Setting JPEG quality to {$this->quality}.");

        return $this;

    }

     *

     * @return $this

     */

    public function setPngCompression($compress = null)

    {

        if ($compress) {

            $this->useCompress = true;

        }

        $this->compress = isset($compress)

            ? $compress

            : self::PNG_COMPRESSION_DEFAULT;

        (is_numeric($this->compress) and $this->compress >= -1 and $this->compress <= 9)

            or $this->raiseError('Quality not in range.');

        $this->log("Setting PNG compression level to {$this->compress}.");

        return $this;

    }