I have a better solution for solving inverted colors on php 5.3.x than posted. All the other solutions I found darkens the image or messes with the colors.See below (note: my imagick object is $jpeg)$range = $jpeg->getQuantumRange(); $php_vs_arr = preg_split("/\./", phpversion()); $php_vs = $php_vs_arr[0] . '.' . $php_vs_arr[1]; if ($jpeg->getImageColorspace() == Imagick::COLORSPACE_CMYK) { //make sure cmyk color-space is set correctly $jpeg->setImageColorspace(12); // then we add an RGB profile $icc_rgb = file_get_contents(FRAMEWORK_PATH . DS . 'color' . DS . 'AdobeRGB1998.icc'); $jpeg->profileImage('icc', $icc_rgb); unset($icc_rgb); //set color space to rgb $jpeg->setImageColorspace(13); //fix gamma, hue, saturation, brightness if($php_vs < 5.3) { //ADJUST GAMMA BY 20% for 5.2.x $jpeg->levelImage(0, 2.0, $range['quantumRangeString']); } else { //php 5.3 hack FOR INVERTED COLORS $jpeg->negateImage(false, Imagick::CHANNEL_ALL); } } $jpeg->stripImage(); //end convert to RGB=========================|