vb.org Archive - Add-On Releases - Attached Image Watermarking PLUS Guest Viewing of Thumbnails

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- vBulletin 3.6 Add-ons (https://vborg.vbsupport.ru/forumdisplay.php?f=194)

- - Add-On Releases - Attached Image Watermarking PLUS Guest Viewing of Thumbnails (https://vborg.vbsupport.ru/showthread.php?t=141883)

Bulent Tekcan

04-27-2007 04:51 AM

Quote:

Originally Posted by Ntfu2 (Post 1235882)

You can't watermark images that are not on your server.

How can I use watermark on our server without vBulletin attachment system.For example I need watermark ../testimages/ directory on my server.

Any idea for that ?

bjhuang

04-27-2007 07:02 AM

i mean how to watermark only the attachments on my server that have been linked by other sites. i want to keep the images as it is when browsing by my members. but if the images were "stolen", i want them to be watermarked.

Quote:

Originally Posted by Ntfu2 (Post 1235882)

You can't watermark images that are not on your server.

bjhuang

04-27-2007 11:05 AM

to support gif

PHP Code:


		
			
[OPEN]

attachment_watermark.php



[FIND]

    AND in_array($extension, array('jpg', 'jpeg', 'png')) 



[REPLACE]

    AND in_array($extension, array('jpg', 'jpeg', 'png', 'gif'))

    

[FIND]

                $watermark = imagecreatefrompng($waterimage);



[ADD AFTER]

            break;

            case 'gif':

                $watermark = imagecreatefromgif($waterimage);



[FIND]

                $attachimage = imagecreatefrompng($attachpath);



[ADD AFTER]

            break;

            case 'gif':

                $attachimage = imagecreatefromgif($attachpath);

datarecall

05-01-2007 04:28 PM

worked excellent quick note to people that are trying this
dont use a transparent gif for your water mark you will get a bunch of errors
i put my watermark in the root directory because for some reason i got errors when putting it into images/watermark.png

thanks for the mod it works great.

Pottsy

05-19-2007 04:13 PM

A while ago I posted about poor image quality with the watermark on.

I fixed this by finding this in attachment_watermark.php:

Code:

imagejpeg($attachimage);

and replacing it with this:

Code:

imagejpeg($attachimage,"",93);

The 93 is the quality of the output, with 100 as max and 50 as grotty.

HTH

ConqSoft

05-19-2007 04:14 PM

Default quality is 75, and is usually fine.

Pottsy

05-20-2007 12:01 PM

https://vborg.vbsupport.ru/external/2007/05/9.jpg

Those are a 1:1 crop of a detail of a pic uploaded and watermarked at the different quality levels. I saved this compilation at 100% quality to try to minimise the effects of another jpg conversion, but it shows the issue I was having. I was getting complaints... :)

ConqSoft

06-14-2007 02:08 PM

I don't really see much of a difference between the 75 and the 93. *shrug*

Kahuna900

06-14-2007 02:47 PM

I added he hack to allow watermarking of "gif" which worked, but it seems to mess with the transparency of the watermark.png file.

FleXy

06-17-2007 04:05 PM

iexampled image isn't realy true color. try image with different colors like HG photo and you will see difference.

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