(PHP 4 >= 4.0.1, PHP 5)
imagecolorclosesthwb — Get the index of the color which has the hue, white and blackness
Get the index of the color which has the hue, white and blacknessnearest the given color.
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
Value of red component
Value of green component
Value of blue component
Returns an integer with the index of the color which has the hue, white and blackness nearest the given color.
Example #1 Example of using imagecolorclosesthwb()
<?php
$im = imagecreatefromgif('php.gif');
echo 'HWB: ' . imagecolorclosesthwb($im, 116, 115, 152);
imagedestroy($im);
?>
The above example will output something similar to:
HWB: 33
Note: This function is not implemented on Windows platforms.