From: pmpp at sapo dot pt
Operating system: Windows XP
PHP version: 4.3.9RC3
PHP Bug Type: *Graphics related
Bug description: ...topalette creates 2 colors from 1 color image
Description:
------------
I create a truecolor image, fill it with 1 color, then I make that color
transparent, but when I convert the image to palette, I get 1 pixel of a
slightest different color of the first one, shifted 1pixel to the right of
every pixel near a transparent pixel.
[GD Version] => bundled (2.0.28 compatible)
Reproduce code:
---------------
<?php
$image = imagecreatetruecolor(100,100) or die("");
$color = imagecolorallocate($image, 255, 229, 178);
imagefill($image, 0, 0, $color);
imagecolortransparent( $image, $color);
imagetruecolortopalette ( $image, 0, 255);
imagepng($image);
?>
Expected result:
----------------
I expect to have all the image transparent.
Actual result:
--------------
With a more complex image, it's as I had moved a selection of the NON
transparent image, full of a slightest different color of the one I made
transparent, moved 1pixel to the right in the background.
--
Edit bug report at http://bugs.php.net/?id=30242&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=30242&r=trysnapshot4
Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=30242&r=trysnapshot50
Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=30242&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=30242&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=30242&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=30242&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=30242&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=30242&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=30242&r=support
Expected behavior: http://bugs.php.net/fix.php?id=30242&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=30242&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=30242&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=30242&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=30242&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=30242&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=30242&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=30242&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=30242&r=float
MySQL Configuration Error: http://bugs.php.net/fix.php?id=30242&r=mysqlcfg
