Splash marks on images?

[hlstriker]

Hi, is there a way to put a splash mark on an image that is already uploaded to my website? I really don't even know where to start with this, so sorry if I didn't explain enough.

[pocobueno1388]

Here are some tutorials

http://www.sitepoint.com/article/watermark-images-php

http://www.devshed.com/c/a/PHP/Dynamic-Watermarking-with-PHP/

 

[hlstriker]

Hi, I did exactly what that first tutorial said and thousands of symbols display on my page instead of the image. I don't get any errors or warnings, just thousands of symbols. Here is the code I used... (note I had to put another header after the image was created otherwise nothing would display on my page.)

 

header('content-type: image/jpeg');

$watermark = imagecreatefrompng('watermark.png');
$watermark_width = imagesx($watermark);
$watermark_height = imagesy($watermark);
$image = imagecreatefromjpeg("path/to/image");
$size = getimagesize("path/to/image");
$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);

header('content-type: text/html');

echo "<img src='$image'>";

[redarrow]

 

example link of a dear water marked dead friend.

http://www.freelanceprogrammers.co.uk/font/

 

dont need all that code here you go

 

<?php 
$im    = imagecreatefrompng("mat_picture.png");
$yellow = ImageColorAllocate ($im, 235, 235, 51);
$saying="hi there i am redarrow"; 
ImageTTFText ($im, 15, 1, 25, 70, $yellow, "/WINDOWS/Fonts/IMPACT.ttf", "$saying"); 
ImagePNG($im); 
?> 

[Barand]

Put image code in a file of its own

 

:: wm_image.php ::

<?php

$image = $_GET['image'];

$watermark = imagecreatefrompng('watermark.png');
$watermark_width = imagesx($watermark);
$watermark_height = imagesy($watermark);
$image = imagecreatefromjpeg($image);
$size = getimagesize($image);
$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);

header('content-type: image/jpeg');
imagejpeg($image);
imagedestroy($image);
imagedestroy($watermark);
?>

 

in another file, place image on page

 

:: another.php ::

<?php

echo '<img src="wm_image.php?image=path/to/image">';

?>

[redarrow]

barand i no you sent me a pm i hope you got mine today?

 

is my code so bad?

[Barand]

~redarrow,

 

Apart from missing content-type header, and if you only want a text-only watermark at the top left, it looks fine.

 

The extra (uneccessary, as you say) code as posted is to place an image as a watermark relative to the bottom right of an image

[redarrow]

ok thanks.

[hlstriker]

Thanks for all the help so far, I've got it working. I have another question though.

 

Is it possible to resize the image without saving it to the harddrive?

[hlstriker]

Ok I used...

imagecopyresized($dest, $img, 0, 0, 0, 0, 350, 300, $size[0], $size[1]);

 

It worked but now the images color is all messed up. Is there a way to do this with keeping the original color?

[Barand]

Create the dest image with imagecreatetruecolor

 

You might find imagecopyresampled works better too

[hlstriker]

Works perfect, thanks