From 23044a94ddf65c67ed2704b5f190b0d5b21fd1bb Mon Sep 17 00:00:00 2001
From: Will Rossiter <will@silverstripe.com>
Date: Wed, 8 Apr 2009 03:21:07 +0000
Subject: [PATCH] BUGFIX: fixed issue with greyscale GD - patch from camspiers

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/branches/2.3@74272 467b73ca-7a2a-4603-9d3b-597d59a354a9
---
 filesystem/GD.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/filesystem/GD.php b/filesystem/GD.php
index 43c0afa97..d71079c92 100755
--- a/filesystem/GD.php
+++ b/filesystem/GD.php
@@ -352,8 +352,8 @@ class GD extends Object {
 		$rr = ($rv == 0) ? 0 : 1/($rt/$rv);
 		$br = ($bv == 0) ? 0 : 1/($rt/$bv);
 		$gr = ($gv == 0) ? 0 : 1/($rt/$gv);
-		for($dy = 0; $dy <= $height; $dy++) {
-			for($dx = 0; $dx <= $width; $dx++) {
+		for($dy = 0; $dy < $height; $dy++) {
+			for($dx = 0; $dx < $width; $dx++) {
 				$pxrgb = imagecolorat($this->gd, $dx, $dy);
 				$heightgb = ImageColorsforIndex($this->gd, $pxrgb);
 				$newcol = ($rr*$heightgb['red']) + ($br*$heightgb['blue']) + ($gr*$heightgb['green']);