#33125 [Opn->Asn]: imagecopymergegray produces mosaic rainbow effect

From: Date: Wed, 25 May 2005 09:27:30 +0000
Subject: #33125 [Opn->Asn]: imagecopymergegray produces mosaic rainbow effect
References: 1  Groups: php.bugs 
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ID: 33125 Updated by: sniper@php.net Reported By: thomas at krantz dot com -Status: Open +Status: Assigned Bug Type: GD related Operating System: Linux PHP Version: 4.3.11 Assigned To: pajoye Previous Comments: ------------------------------------------------------------------------ [2005-05-24 13:50:25] thomas at krantz dot com Description: ------------ When merging two images, one normal and the other one completely black, the output from imagecopymergegray produces a weird looking mosaic of the first. Reproduce code: --------------- <?php $imPng = imagecreatefrompng("Tiles/Bamboo/9.png"); $imSrc = imagecreatefrompng("Tiles/Bamboo/black.png"); $height = imagesy($imPng); imagecopymergegray($imPng, $imSrc, 0, 0, 0, 0, $height, $height, 50); header("Content-type: image/png"); imagePng($imPng); ?> See also http://www.tilehog.net/prepermission/showbug.html Expected result: ---------------- The original image should be darkened by 50%. This was the result in the earlier version (4.3.10). Actual result: -------------- http://www.tilehog.net/prepermission/showbug.html ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=33125&edit=1

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