Thumbnails

[mnhg]

Ich erzeug über folgende Funktion Thumbnails für ne Screenshotgallerie. Wodran liegt es das die Bilder teilweise ihre Farbe verlieren und wie kann ich das beheben.

function Thumb ($GIMG)
{
  global $IMAGE_WIDTH;
  global $IMAGE_HEIGHT;
  $info = getimagesize($GIMG,$info2);


  if (($info[0]>$IMAGE_WIDTH) ||  ($info[1]>$IMAGE_HEIGHT))
  {
  if (file_exists("images/tmb/tmb_".basename($GIMG)))
  {
    $IMG="images/tmb/tmb_".basename($GIMG);
  }
  else
  {
    if ($info[0]>$info[1])
    {
      $tmbscale=($info[0]/$IMAGE_WIDTH);
      $tmbwidth=$IMAGE_WIDTH;
      $tmbheight=($info[1]/$tmbscale);
      

    }
    else
    {
      $tmbscale=($info[1]/$IMAGE_HEIGHT);
      $tmbheight=$IMAGE_HEIGHT;
      $tmbwidth=($info[0]/$tmbscale);
    }


    
    switch ($info[2])
    {
      case 2:

        $image = imagecreatefromjpeg($GIMG);
        $image1 = imagecreate($tmbwidth,$tmbheight);
        $farbe_body=imagecolorallocate($image1,255,255,255);
        imagecopyresized($image1, $image, 0,0, 0,0,$tmbwidth,$tmbheight, $info[0],$info[1]);

        imagejpeg($image1,"images/tmb/tmb_".basename($GIMG));
        $IMG="images/tmb/tmb_".basename($GIMG);
        break;


      case 3:
        $image = imagecreatefrompng($GIMG);
        $image1 = imagecreate($tmbwidth,$tmbheight);
        $farbe_body=imagecolorallocate($image1,255,255,255);
        imagecopyresized($image1, $image, 0,0, 0,0,$tmbwidth,$tmbheight, $info[0],$info[1]);

        imagepng($image1,"images/tmb/tmb_".basename($GIMG));
        $IMG="images/tmb/tmb_".basename($GIMG);
        break;

      case 1:
        $image = imagecreatefromgif($GIMG);
        $image1 = imagecreate($tmbwidth,$tmbheight);
        $farbe_body=imagecolorallocate($image1,255,255,255);
        imagecopyresized($image1, $image, 0,0, 0,0,$tmbwidth,$tmbheight, $info[0],$info[1]);

        imagegif($image1,"images/tmb/tmb_".basename($GIMG));
        $IMG="images/tmb/tmb_".basename($GIMG);
        break;

    }
  }
  }
  else
  {
  $IMG=$GIMG;

}
  echo ' <a href=javascript:popupw=window.open("'.$GIMG.'","Screenshot",
"dependent=no,height='.($info[1]+20).',hotkeys=no,left=0,location=no,menubar=no,
resizable=yes,scrollbars=no,status=no,toolbar=no,top=0,width='.($info[0]+20).'");popupw.focus();><img src='.$IMG.' border=0></a> ';

} 

Online zu bewundern unter:
http://www.xtremenintendo.de/index.p...hot/screenshot

MfG
mnhg

[hand]

Probiers mal mit

$image1 = ImageCreateTrueColor($tmbwidth,$tmbheight);
// anstatt
$image1 = ImageCreate($tmbwidth,$tmbheight); 

http://at.php.net/manual/de/function...etruecolor.php

[mnhg]

Danke für die schnelle Hilfe.
Hat natürlich funktioniert.

MfG
mnhg
www.bashcomp.de