GD watermark problem

Uncategorized
1

was working on a image uploadscript with resize and watermark section… script already works fine but i run a snag… my watermark section does’nt seem to work…

mybe you guys can find de problem:


<?
//* Lees naam afbeelding uit url en koppel VIEW tag aan template *//
if ($_GET['afbeelding']){  
  
	$path_watermerk = $wtrm_dir . "/water_sWo0p.png"; 
	//* watermerk test echo "<img src=\"" . $path_watermerk . "\">";
	$watermerk = imagecreatefrompng($path_watermerk);  
    $watermerk_width = imagesx($watermerk);  
    $watermerk_height = imagesy($watermerk);

    $image = imagecreatefromjpeg($upl_dir . "\\" . $_GET['afbeelding']);  
    $size = getimagesize($upl_dir . $_GET['afbeelding']);  
    $xas = $size[0] - $watermerk_width - 5;  
    $yas = 5;  
 
    imagecopymerge($image, $watermerk, $xas, $yas, 0, 0, $watermerk_width, $watermerk_height, 100);
 
}  
else  
    echo "Geen naam meegegeven in URL.";
	
	header('content-type: image/jpeg');
    $afb = imagejpeg($image); //imagejpeg($image);
	$afbeelding = '<img src=" '.$afb.' " width="400" border="1" />';
    $tpl->assign("VIEW_IMAGE", "$afbeelding");
?>

there is a template system in my script but you guys can work around that… :thumb2:

2 
<? 
//* Lees naam afbeelding uit url en koppel VIEW tag aan template *//
if ($_GET['afbeelding']){  
  
    $path_watermerk = $wtrm_dir . "/water_sWo0p.png";
    //* watermerk test echo "<img src=\"" . $path_watermerk . "\">";
    $watermerk = imagecreatefrompng($path_watermerk);  
    $watermerk_width = imagesx($watermerk);  
    $watermerk_height = imagesy($watermerk);

    $image = imagecreatefromjpeg($upl_dir . "/" . $_GET['afbeelding']);  
    $size = getimagesize($upl_dir. "/" . $_GET['afbeelding']);  
    $xas = $size[0] - $watermerk_width - 5;  
    $yas = 5;  
	imagecopy($image, $watermerk,$xas, $yas,0,0,$watermerk_width,$watermerk_height);

}  
else  
    echo "Geen naam meegegeven in URL.";
    
    header('content-type: image/jpeg');
    $afb = imagejpeg($image); //imagejpeg($image);
    $afbeelding = '<img src=" '.$afb.' " width="400" border="1" />';
    $tpl->assign("VIEW_IMAGE", "$afbeelding");
?>

Try this… imagecopymerge doesn’t seem to support alpha channels. I also changed some slashes, otherwise the script couldn’t find the files.

3

i did’nt have the time to try it out yet, but knowing you it’ll work, thanks dude… but axplain what was wrong in my script… ?

4

According to teiz77 the following things were wrong (or not working):

The imagecopymerge thing is pretty clear. If you need more info, look at the PHP manual on that. It usually does a good job of explaining possible issues (especially in the comments).

The slashes. Well you were using “\” when it should have been “/” for the path to the images. And there was one case where you didn’t have the “/” to separate the path from the file name:

The “\” vs. “/” problem:

$image = imagecreatefromjpeg($upl_dir . "\\" . $_GET['afbeelding']);

The missing “/” - you needed this b/n $upl_dir and $_GET:

$size = getimagesize($upl_dir . $_GET['afbeelding']);

(PHP code above is your code, the correction can be seen in teiz77’s code)

BTW - teiz77, I didn’t mean to jump in on your post here and “take over” but I figured I’d explain it incase sWo0p came back for an answer before you could reply. I hope that was okay (and I hope I didn’t miss anything).

5

I couldn’t have said it better :thumb: