[SOLVED] Watermark showing as a block

[rondog]

I am trying to watermark some images with a transparent PNG, but the PNG is showing up just as a block of white. See here

 

-> http://dopserv1.com/hosted/army/l.php?p=12

 

Here is my code:

<?php
header("Content-type: image/jpeg");
include 'connect.php';
$picid = $_GET['p'];
$sql = mysql_query("SELECT filename FROM photo WHERE id = '$picid'") or die(mysql_error());
$row = mysql_fetch_row($sql);
$src = "photos/".$row[0];

$watermark = imagecreatefrompng("images/watermark.png");
$waterw = imagesx($watermark);
$waterh = imagesy($watermark);

$img = imagecreatetruecolor($waterw,$waterh);
$img = imagecreatefromjpeg($src);

$size = getimagesize($src);
$dest_x = ($size[0]/2) - ($waterw/2);
$dest_y = ($size[1]/2) - ($waterh/2);

imagecopymerge($img,$watermark,$dest_x,$dest_y,0,0,$waterw,$waterh,50);
imagejpeg($img);
imagedestroy($img);
imagedestroy($watermark);
?>

 

I attached the PNG file just in case you want to see it

 

[attachment deleted by admin]

[mrdamien]

I think the watermark also needs to be a truecolor image

 

list($waterw, $waterh, $type, $attr) = getimagesize("images/watermark.png");
$watermark = imagecreatetruecolor($waterw, $waterh);
$watermark = imagecreatefrompng("images/watermark.png");

[rondog]

Not sure if you meant to replace the code something like this:

<?php
header("Content-type: image/jpeg");
include 'connect.php';
$picid = $_GET['p'];
$sql = mysql_query("SELECT filename FROM photo WHERE id = '$picid'") or die(mysql_error());
$row = mysql_fetch_row($sql);
$src = "photos/".$row[0];

list($waterw, $waterh, $type, $attr) = getimagesize("images/watermark.png");
$watermark = imagecreatetruecolor($waterw, $waterh);
$watermark = imagecreatefrompng("images/watermark.png");
$waterw = imagesx($watermark);
$waterh = imagesy($watermark);

$img = imagecreatetruecolor($waterw,$waterh);
$img = imagecreatefromjpeg($src);

$size = getimagesize($src);
$dest_x = ($size[0]/2) - ($waterw/2);
$dest_y = ($size[1]/2) - ($waterh/2);

imagecopymerge($img,$watermark,$dest_x,$dest_y,0,0,$waterw,$waterh,50);
imagejpeg($img);
imagedestroy($img);
imagedestroy($watermark);
?>

 

but its still doing the same thing..got anything else? 

[phpretard]

I have had troubles in the past with browsers not being capable of displaying a transparent BG on a .png file.  My solution was turning into a gif with the correct matting color.

 

Hope this helps

[rondog]

ok I made it a gif instead and that worked. GIF it is I suppose! thanks

[phpretard]

I would like to take this opportunity to congradulate myself on finally helping some one solve a problem.

 

Thank you, Thank you...please no applause...

[phpretard]

Please take note: it had nothing to do with PHP