#38764 [Bgs]: GD imagecopyresampled() AND imagecopyresized() bug

ID: 38764 User updated by: markg852 at hotmail dot com Reported By: markg852 at hotmail dot com Status: Bogus Bug Type: GD related Operating System: Windows XP, linux PHP Version: 5.1.6 Assigned To: pajoye New Comment: Thanx alot that worked how i wanted it. but it might be a idea to put something like this in the php documentation aswell.. maybe here: http://nl3.php.net/manual/en/function.imagefill.php i couldn`t find it anywhere and people on the ##php channal (irc) on freenode couldn`t offer a solution aswell.. so this might be verry unknown. Again Thanx Previous Comments: ------------------------------------------------------------------------ [2006-09-09 23:28:57] pajoye@php.net First of all no need to be loud. It was not a suggestion but a fact. In this image "uitkomstvc4.png", the left sude shows the artifacts resulting from a wrong/no transparent color. Just try: $thumb = imagecreatetruecolor($newwidth, $newheight); imagefill($thumb,0,0, 0xffffff); .. do the copy/save with transparent color or blend mode.. and then do the copy, you will have what you have on the right side. It is all about alpha component and background color of two separate images. Again, there is no bug, not in the gd and not in php. ------------------------------------------------------------------------ [2006-09-09 22:28:51] markg852 at hotmail dot com @ tony2001@php.net i even tested the 6.0.0-dev snapshot and it still has the exact same issue. @ pajoye@php.net tested your suggestion and the result is still exactly the same. and just to be sore.. im talking about the QUALITY!!! thats just different.. just look at the image i supplied in the first image. Could this be a bug in GD itself (so not php`s fault) or in php_gd.dll ? ------------------------------------------------------------------------ [2006-09-09 22:16:22] pajoye@php.net doh, submit too quickly all you have to do: imagecolortransparent($thumb, 0); imagealphablending($thumb, false); the fist to set the bgd color, the second function to keep the alpha information while copying (no blend ops). ------------------------------------------------------------------------ [2006-09-09 22:13:18] pajoye@php.net There is no bug. You copy an image to a another image. The destination image has no transparent color defined. True color images are "filled" with black by default, that's why you see black instead of the transparent color. short version: all you need to do is: ImageColorTransparent($thumb, 0); ------------------------------------------------------------------------ [2006-09-09 21:51:58] tony2001@php.net Please try using this CVS snapshot: http://snaps.php.net/php5.2-latest.tar.gz For Windows: http://snaps.php.net/win32/php5.2-win32-latest.zip ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/38764 -- Edit this bug report at http://bugs.php.net/?id=38764&edit=1