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

imagecolorclosestalpha
imagecolordeallocate
GD and Image Functions
PHP Manual

# imagecolorclosesthwb

(PHP 4 >= 4.0.1, PHP 5)

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

### Description

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.

### Return Values

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

### Examples

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

### Changelog

Version | Description
--- | ---
5.3.0 | This function is now available on Windows

### See Also

- imagecolorclosest() - Get the index of the closest color to the specified color

imagecolorclosestalpha
imagecolordeallocate
GD and Image Functions
PHP Manual