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shiznatix
DevNet Master
Posts: 2745 Joined: Tue Dec 28, 2004 5:57 pm
Location: Tallinn, Estonia
Contact:
Post
by shiznatix » Sun Nov 20, 2005 1:06 pm
im not good at gd at all but what i need to do is watermark a image. i upload the image and then i use this function
Code: Select all
<?php
function watermark($img)
{
$watermark = imagecreatefrompng('./images/watermark.png');
$watermark_width = imagesx($watermark);
$watermark_height = imagesy($watermark);
$image = imagecreatetruecolor($watermark_width, $watermark_height);
$image = imagecreatefromjpeg($img);
$size = getimagesize($img);
$dest_x = $size[0] - $watermark_width - 5;
$dest_y = $size[1] - $watermark_height - 5;
imagecopymerge($image, $watermark, $dest_x, $dest_y, 0, 0, $watermark_width, $watermark_height, 100);
imagejpeg($image);
imagedestroy($image);
imagedestroy($watermark);
}
?>
but that will just display the image if i throw the right header. i dont want it to display the image, i want it to save the image over the old, unwatermarked image. help please.
yum-jelly
Forum Commoner
Posts: 98 Joined: Sat Oct 29, 2005 9:16 pm
Post
by yum-jelly » Sun Nov 20, 2005 1:11 pm
Just add the path to imagejpeg(); and the quality! If you don't add quality it default to 72
yj
shiznatix
DevNet Master
Posts: 2745 Joined: Tue Dec 28, 2004 5:57 pm
Location: Tallinn, Estonia
Contact:
Post
by shiznatix » Sun Nov 20, 2005 1:30 pm
wow that was simple. i guess i should have RTFM. ok thanks
edit:
can i do the same thing with imagegif and imagepng? the manual did not really say anything
josh
DevNet Master
Posts: 4872 Joined: Wed Feb 11, 2004 3:23 pm
Location: Palm beach, Florida
Post
by josh » Sun Nov 20, 2005 2:05 pm
Quick 'hack' for functions that write to stdout instead of file
Code: Select all
<?
ob_start();
// function that outputs
file_put_contents('file', ob_get_clean());
?>
onion2k
Jedi Mod
Posts: 5263 Joined: Tue Dec 21, 2004 5:03 pm
Location: usrlab.com
Post
by onion2k » Sun Nov 20, 2005 3:30 pm
shiznatix wrote: can i do the same thing with imagegif and imagepng? the manual did not really say anything
Yes you can, but you'll need to miss out the quality argument coz gif and png don't have that.