Aug 9 2008

Intelligent Watermark (php + gd)

This entry is part 5 of 5 in the series Online Photoshop

Online Photoshop in PHP Part (5) >>

(image after watermarked with gmail logo)

Those who haven’t seen  the online photoshop tool created by me, just click here: http://www.sajithmr.com/photoshop

Today we will implement the watermarking on images using php gd library. Intelligent watermarking means, apply a logo or a watermark image on another image by measuring the color depth of the applied image. For this water marking, use png images as logo or watermark  for better results.

Live example for watermark implementation: http://sajithmr.com/photoshop-tuts/watermark/addwatermark.php

You can see different watermark location by changing the x1,y1 and x2,y2 parameters of the following url:

http://sajithmr.com/photoshop-tuts/watermark/showresult.php?x1=405&y1=285&x2=520&y2=392&width=115&height=107

See the watermark php source code here: http://sajithmr.com/photoshop-tuts/watermark/watermark.class.txt

Download the full-source code of watermarking implementation using php+gd from here: http://sajithmr.com/photoshop-tuts/watermark.rar

Series Navigation«Crop Image Like Orkut

2 Comments on this post

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  1. Marco Pracucci said:

    There’s another important problema to solve, related to watermarks, that is place it in a position where it does not hide any important thing. I have proposed a simple algorithm (with its implementation in PHP + IMagick). Feedback is welcome

    August 31st, 2008 at 6:46 pm
  2. ubuh said:

    thanks for link…

    June 17th, 2009 at 10:15 am

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