protected function convertImage()
{
// Define the temp converted image.
$this->convertedImage = \Pop\File\Dir::getUploadTemp() . DIRECTORY_SEPARATOR . $this->img->getFilename() . '_' . time() . '.png';
// Convert the GIF to PNG, save and clear the output buffer.
$this->img->convert('png')->save($this->convertedImage);
// Re-instantiate the newly converted image object and re-read the image data.
$this->img = new Gd($this->convertedImage);
$this->imageData = $this->img->read();
}