note 41445 added to function.imagecolorstotal
| From: | FelixRusu | Date: | Sat, 10 Apr 2004 06:19:51 +0000 |
| Subject: | note 41445 added to function.imagecolorstotal | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-67945@lists.php.net to get a copy of this message | ||
Actually that is not true.
When you use for example imagecreatefromjpeg() you create a truecolor image resource (as with the
other truecolor image types). If you try to get the number of colors using imagecolorstotal() you
get 0 (thats what happened to me at least). Instead you must convert the trucolor resource to
pallete resource. You have to do that like this:
<?
$simg=createfromjpeg("somejpeg.jpg");
imagetruecolortopalette($simg, false, 256);
$colors=imagecolorstotal($simg);
?>
Check the manual for the function signature.
Cheers.
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Manual Page -- http://www.php.net/manual/en/function.imagecolorstotal.php
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