Image color detection and extraction

This PHP color detection & image watermarking class can easily obtain an array of colors dominant in an image in RGB and HEXA formats using simple PHP syntax.

It supports GIF, JPG and PNG.

Example:

include_once 'config.inc.php'; 
include_once 'class/colorExtractor.class.php';
$colorExtractor = new ColorExtractor();
$colors = $colorExtractor->getColors($image);
print_r($colors);

Example output:

  Array
(
 [0] => Array
    (
        [RGB] => 10-103-23
        [HEXA] => 0A6717
    )

[1] => Array
    (
        [RGB] => 10-84-21
        [HEXA] => 0A5415
    )

[2] => Array
    (
        [RGB] => 2-87-48
        [HEXA] => 025730
    )

[3] => Array
    (
        [RGB] => 21-136-15
        [HEXA] => 15880F
    )

[4] => Array
    (
        [RGB] => 4-75-9
        [HEXA] => 044B09
    )

[5] => Array
    (
        [RGB] => 5-60-39
        [HEXA] => 053C27
    )
)

Example Watermark:

  // image.php file
   header('Content-Type: image/png');
   include_once 'config.inc.php'; 
   include_once 'class/colorExtractor.class.php';
   $colorExtractor= new ColorExtractor();

  $image = $_GET['image'];
  $colorRGB = $_GET['colorRGB'];
  $colorExtractor->rgb_alpha=1; // for PNG transparent
  $colorExtractor->img_watermark='default/mark.png';  //watermark
  $colorExtractor->ImageFusion($image,$colorRGB);

See the screenshots for examples of images and their dominant colors output.