Watermark and Thumbnail - Codeigniter

Question

I am working on a script that creates a thumbnail and then will watermark the original image, but the script only creates the thumbnail and skips over the watermarking.

 $image = $data['json']->{'file_name'};
   $data['account'] = $account;

   $this->_insertintodb($account, $image);

   //Settings to create thumbnail
   $config['source_image'] = $data['json']->{'file_path'};
   $config['create_thumb'] = TRUE;
   $config['maintain_ratio'] = TRUE;
   $config['width'] = 125;
   $config['height'] = 125;
   $this->image_lib->initialize($config);

   if($this->image_lib->resize()) {
    $prep_thumb = explode('.', $image);
    $thumb = $prep_thumb[0] . '_thumb.' . $prep_thumb[1];
    $this->_moveimage($thumb, $account, TRUE);
   }

   $this->image_lib->clear();

   //Settings to create watermark overlay
   $config = array();
   $config['source_image'] = $data['json']->{'file_path'};
   $config['wm_type'] = 'overlay';
   $config['wm_overlay_path'] = getcwd() . '/design/overlay_watermark_transparent.png';
   $config['wm_vrt_alignment'] = 'middle';
   $config['wm_hor_alignment'] = 'center';

   $this->image_lib->initialize($config);

   if(!$this->image_lib->watermark()){
    echo $this->image_lib->display_errors();
   }

   $this->image_lib->clear();

Any ideas on why this is not working correctly?

Answer 1

Do you have the required dependencies? From http://www.codeignitor.com/user_guide/libraries/image_lib.html:

Note: Watermarking is only available using the GD/GD2 library. In addition, even though other libraries are supported, GD is required in order for the script to calculate the image properties. The image processing, however, will be performed with the library you specify.

Looks like you will need to install GD and then include it as your codeigniter image manipulation library.

Answer 2

If the watermarking isn't working, and you have the required dependencies, you should be getting error messages here:

if(!$this->image_lib->watermark()){
    echo $this->image_lib->display_errors();
}

Either those errors can help you more than we can, or we can help you more after you provide us those.