note 14633 added to function.imagecreatetruecolor.php

From: Date: Tue, 07 Aug 2001 11:44:04 +0000
Subject: note 14633 added to function.imagecreatetruecolor.php
Groups: php.notes 
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Does anybody know a function to convert a 32bit JPEG image to greyscale? I've tried to do it myself by calculating the luminence value of each color and connecting that value to a grey value, but this doesn't work properly. Any suggestions?? http://www.php.net/manual/en/function.imagecreatetruecolor.php

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