Php/docs/function.imageistruecolor
imageistruecolor
(PHP 4 >= 4.3.2, PHP 5, PHP 7)
imageistruecolor — Finds whether an image is a truecolor image
Description
imageistruecolor
( resource $image
) : bool
imageistruecolor() finds whether the image
image is a truecolor image.
Parameters
image- An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
Return Values
Returns TRUE if the image is truecolor, FALSE
otherwise.
Examples
Example #1 Simple detection of true color image instances using imageistruecolor()
<?php// $im is an image instance// Check if image is a true color image or notif(!imageistruecolor($im)){ // Create a new true color image instance $tc = imagecreatetruecolor(imagesx($im), imagesy($im)); // Copy over the pixels imagecopy($tc, $im, 0, 0, 0, 0, imagesx($im), imagesy($im)); imagedestroy($im); $im = $tc; $tc = NULL; // OR use imagepalettetotruecolor()}// Continue working with image instance?>
See Also
- imagecreatetruecolor() - Create a new true color image
- imagepalettetotruecolor() - Converts a palette based image to true color
