function buildImage($opts) { $input = "input/2010_09_04__23_56_32_125__SDO_AIA_AIA_304.pgm"; $clut = "input/SDO_AIA_304.png"; $image = new IMagick($input); if ($opts['use_gd']) { // Format if ($opts['inter_format']) { $image->setImageFormat($opts['inter_format']); } // Bit-depth (intermediate image) if ($opts['depth']) { $image->setImageDepth($opts['depth']); } // Image type if ($opts['type']) { $image->setImageType(constant($opts['type'])); } // Compression quality if ($opts['input_quality'] || $opts['input_quality'] === 0) { $image->setImageCompressionQuality($opts['input_quality']); } $intermediate = $image->getimageblob(); if ($opts['base64']) { $intermediate = base64_encode($intermediate); } $image->destroy(); $coloredImage = setColorPalette($intermediate, $clut, $opts['base64']); if ($opts['base64']) { $coloredImage = base64_decode($coloredImage); } $image = new IMagick(); $image->readimageblob($coloredImage); } else { $image->clutImage(new Imagick($clut)); } if (strtolower($opts["output_format"]) == "png") { // Compression type if ($opts['compression']) { $image->setImageCompression(constant($opts['compression'])); } // Interlacing if ($opts['interlace']) { $image->setInterlaceScheme(constant($opts['interlace'])); } // Compression quality if ($opts['output_quality'] || $opts['output_quality'] === 0) { $image->setImageCompressionQuality($opts['output_quality']); } } // Bit-depth (final image) if ($opts['depth']) { $image->setImageDepth($opts['depth']); } $image->writeImage("final." . strtolower($opts["output_format"])); $image->destroy(); }
function upload() { // Default settings/restrictions $config['upload_path'] = $this->directory; $config['allowed_types'] = 'gif|jpg|png|jpeg'; $config['max_size'] = min(maxUploadSizeBytes() / 1024, self::MAX_FILE_SIZE_KB); $config['max_width'] = '0'; // no restriction (image will be resized anyway!) $config['max_height'] = '0'; $config['max_filename'] = self::MAX_FILE_NAME_LEN; $this->load->library('upload', $config); // Try and upload the file using the settings from __construct() if (!$this->upload->do_upload('new_file')) { // Abort upload and display errors, if any $data['error_message'] = $this->upload->display_errors(); $data['recent_uploads'] = $this->getRecentUploads(); $data['title'] = "Image Uploader"; $data['js_lib'] = array('core'); $this->load->view('uploader', $data); } else { // Create the compressed copy of the image based on a hash of the uploaded filename $upload_result = $this->upload->data(); $image = new Imagick($this->directory . $upload_result['file_name']); $image->setBackgroundColor(new ImagickPixel('white')); // Create the optimised image // "bestfit" param will ensure that the image is downscaled proportionally if needed // if ($image->getImageWidth() >= $image->getImageHeight() // && $image->getImageWidth() > self::IMAGE_LANDSCAPE_WIDTH || $image->getImageHeight() > self::IMAGE_LANDSCAPE_HEIGHT) // { // $image->resizeImage(self::IMAGE_LANDSCAPE_WIDTH,self::IMAGE_LANDSCAPE_HEIGHT, Imagick::FILTER_LANCZOS, 1, true); // } // else if ($image->getImageWidth() > self::IMAGE_PORTRAIT_WIDTH || $image->getImageHeight() > self::IMAGE_PORTRAIT_HEIGHT) // { // $image->resizeImage(self::IMAGE_PORTRAIT_WIDTH,self::IMAGE_PORTRAIT_HEIGHT, Imagick::FILTER_LANCZOS, 1, true); // } $flattened = new IMagick(); $flattened->newImage($image->getImageWidth(), $image->getImageHeight(), new ImagickPixel("white")); $flattened->compositeImage($image, imagick::COMPOSITE_OVER, 0, 0); $flattened->setImageFormat("jpg"); $flattened->setImageCompression(Imagick::COMPRESSION_JPEG); // $flattened->setCompression(Imagick::COMPRESSION_JPEG); // $flattened->setCompressionQuality(self::COMPRESSION_PERCENTAGE); $flattened->writeImage($this->directory . 'img_' . md5($upload_result['file_name']) . ".jpg"); $flattened->clear(); $flattened->destroy(); $image->clear(); $image->destroy(); $data['success_message'] = "File successfully uploaded!"; $data['recent_uploads'] = $this->getRecentUploads(); $data['title'] = "Image Uploader"; $data['js_lib'] = array('core'); $data['max_filesize'] = $config['max_size']; $this->load->view('uploader', $data); } }