question about GD and colors
| From: | Jean-François Marseaut | Date: | Mon, 27 Jan 2003 16:15:31 +0000 |
| Subject: | question about GD and colors | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-133252@lists.php.net to get a copy of this message | ||
With this script under, I get resized image in only 16 colors. with an old
version of gd, I got 16 million colors images. Has someone a response ?
<?PHP
/*******************
file [string] -> filename jpg
w [int] -> width
********************/
header("Content-type: image/png");
$file = urldecode($file);
$file = "../".$file;
$infofile = getimagesize($file);
$long = $infofile[1];
$haut = $infofile[0];
$type = $infofile[2];
if ($long<$w) $w=$long;
$ratio = $haut / $w;
$h = $long / $ratio;
if ($h>$w)
{
$h = $w;
$ratio = $long / $w;
$w = $haut / $ratio;
}
$h = (int)$h;
$dst_img = ImageCreate($w, $h);
$background_color = ImageColorAllocate ($dst_img, 0, 0, 0);
switch ($type)
{
case 1 :
$src_img=ImageCreateFromGif($file);
break;
case 2 :
$src_img=ImageCreateFromJpeg($file);
break;
case 3 :
$src_img=ImageCreateFromPng($file);
break;
case 6 :
$src_img=imagecreatefromwbmp($file);
break;
default :
ImagePng($dst_img);
}
imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $w, $h,
ImageSX($src_img), ImageSY($src_img));
imagepng($dst_img);