imagecolorclosesthwb

(PHP 4 >= 4.0.1, PHP 5, PHP 7)

Get the index of the color which has the hue, white and blackness

int imagecolorclosesthwb ( resource $image, int $red, int $green, int $blue )

Get the index of the color which has the hue, white and blackness nearest the given color.

Parameters:

image

An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().

red

Value of red component.

green

Value of green component.

blue

Value of blue component.

Returns:

Returns an integer with the index of the color which has the hue, white and blackness nearest the given color.

Changelog:

5.3.0

This function is now available on Windows

Examples:

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