#23491 [Fbk->Opn]: Very bad Quality when I use imagecopyresized

From: Date: Mon, 05 May 2003 13:51:08 +0000
Subject: #23491 [Fbk->Opn]: Very bad Quality when I use imagecopyresized
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-39075@lists.php.net to get a copy of this message 
 ID:               23491
 User updated by:  ab at berg dot net
 Reported By:      ab at berg dot net
-Status:           Feedback
+Status:           Open
 Bug Type:         GD related
 Operating System: RedHat Linux 7.0 with gd-1.8.4-9
 PHP Version:      4.3.2RC2
 New Comment:

Hi Derick,

here my thumbnail-function:

function imgthumb($ori,$thump,$thumbQuality,$thumbWidth)
{
    $origImageHandle = ImageCreateFromJPEG($ori);

    $imageWidth = imagesx($origImageHandle);
    $imageHeigth = imagesy($origImageHandle);

    $thumbHeigth = floor($thumbWidth * $imageHeigth / $imageWidth);
    $thumbImageHandle = ImageCreate("$thumbWidth","$thumbHeigth");

   
imagecopyresized($thumbImageHandle,$origImageHandle,0,0,0,0,$thumbWidth,$thumbHeigth,imagesx($origImageHandle),imagesy($origImageHandle));
    imagejpeg($thumbImageHandle,$thump,"$thumbQuality");
}

Thx for your fast answer
Andreas


Previous Comments:
------------------------------------------------------------------------

[2003-05-05 08:11:15] derick@php.net

Post a link to your code please.

Derick

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[2003-05-05 07:57:04] ab at berg dot net

Hello,

when I use the function imagecopyresized with the PHP Version 4.3.1 or
4.3.2RC2 the new Image has a very bad quality.
If use the PGP Version 4.2.3 it works very fast and with good quality.

For example:
Original Image: http://www.andreas.boehm.de/1/ori.JPG
Image with 4.2.3: http://www.andreas.boehm.de/1/good.jpg
Image with 4.3.x: http://www.andreas.boehm.de/1/bad.jpg

I have install the GD-Lib 1.8.4-9 and my configure command for the
version 4.2.3 and 4.3.x is:
'./configure' '--with-mysql' '--with-gd' '--with-apxs'
'--with-jpeg-dir' '--with-png-dir' '--with-zlib-dir'
'--enable-track-vars=yes' '--enable-url-includes=yes'
'--with-tiff-dir'
'--with-pdflib' '--enable-shared-pdflib' '--with-ttf'
'--with-imap'
'--with-kerberos' '--with-imap-ssl' '--with-gettext'
'--enable-ftp'

Please help me - Thank you
Andreas


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