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);
}
}
