(PHP 4, PHP 5)
imagecolordeallocate — De-allocate a color for an image
De-allocates a color previously allocated with imagecolorallocate() or imagecolorallocatealpha().
성공할 경우 TRUE를, 실패할 경우 FALSE를 반환합니다.
Example #1 Using imagecolordeallocate()
<?php
$white = imagecolorallocate($im, 255, 255, 255);
imagecolordeallocate($im, $white);
?>