Funções da GD
PHP Manual

imagecolorclosesthwb

(PHP 4 >= 4.0.1, PHP 5)

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

Descrição

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

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

Parâmetros

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

Valor Retornado

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

Histórico

Versão Descrição
5.3.0 This function is now available on Windows

Exemplos

Exemplo #1 Example of using imagecolorclosesthwb()

<?php
$im 
imagecreatefromgif('php.gif');

echo 
'HWB: ' imagecolorclosesthwb($im116115152);

imagedestroy($im);
?>

O exemplo acima irá imprimir algo similar a:

HWB: 33


Funções da GD
PHP Manual