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Black and white and color specified index achieved the closest hue - PHP imagecolorclosesthwb

PHP Image Processing PHP Image Processing

imagecolorclosesthwb - acquires the specified color index closest to black and white chromaticity.

grammar

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

Black and white index acquires color closest to a given chromaticity.

Note: This function requires GD 2.0.1 or later (2.0.28 or later recommended).

parameter

  • image created by the image function (for example imagecreatetruecolor ()) image resource returned.
  • valuered red component.
  • green value for the green component.
  • blue blue component value.

return value

It returns an integer index is black and white color closest to a given chromaticity.

Examples

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

echo 'HWB: ' . imagecolorclosesthwb($im, 116, 115, 152);

imagedestroy($im);
?>

Output similar to the above example:

HWB: 33

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