From: vkary at web dot de
Operating system: WinXP & Linux
PHP version: 4.3.7
PHP Bug Type: GD related
Bug description: imagetruecolortopalette - colors in palette are missing and filled
with white
Description:
------------
When trying to reduce a true color image to a palette image with for
example 16 or 32 colors, many colors are missing from the palette and
filled with white color instead.
Reproduce code:
---------------
<?php
$src_im = imagecreatefromjpeg ("ara.jpg");
imagetruecolortopalette ($src_im, false, 16);
Header("Content-type: image/png");
imagepng($src_im);
?>
Expected result:
----------------
The color palette should have exactly the number of colors specified in
imagetruecolortopalette (16 for example) an the color reduced image should
look like this:(created with PHP 4.3.2, GD-Lib 2.0.12)
http://www.textilenetwork.de/php/ara16_4_3_2.png
The color palette for the image above:
http://www.textilenetwork.de/php/ara16_4_3_2_pal.png
or for 32 colors:
http://www.textilenetwork.de/php/ara32_4_3_2.png
http://www.textilenetwork.de/php/ara32_4_3_2_pal.png
Actual result:
--------------
The images and color palettes with PHP 4.3.6: (& PHP 4.3.7)
http://www.textilenetwork.de/php/ara16_4_3_6.png
http://www.textilenetwork.de/php/ara16_4_3_6_pal.png
http://www.textilenetwork.de/php/ara32_4_3_6.png
http://www.textilenetwork.de/php/ara32_4_3_6_pal.png
--
Edit bug report at http://bugs.php.net/?id=28949&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=28949&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=28949&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=28949&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=28949&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=28949&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=28949&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=28949&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=28949&r=support
Expected behavior: http://bugs.php.net/fix.php?id=28949&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=28949&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=28949&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=28949&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=28949&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=28949&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=28949&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=28949&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=28949&r=float
