Need a robust image watermarking application

[rajasekharan1]

Hi,

There have been a lot of scary lawsuits going around in the web design world involving people getting sued for copying their own work and stuff. There should be some way to prove that your work was indeed created by you.

By watermark i mean, hide some random text inside the image.

So are there any robust watermarking applications that can be used watermark which can withstand many (hopefully all) of these attacks:

1. Resizing
2. Cropping
3. Changing the hue/saturation
4. Rotation

I would like the watermark to be password protected if possible. Which application allows this? If not an application, could you point me in the direction of an algorithm or code that can be implemented to get these features?

Thanks in advance,

Raja Sekharan

[reed9]

Imagemagick is probably the easiest way to add watermarks to a large collection of photos.

Shevin -Life and Ubuntu

[rajasekharan1]

Looks like imagemagick adds a visible watermark too an image. I need something that can add invisible watermarks to an image.

[reed9]

You can add copyright info to the EXIF data, using GIMP or other program EXIF editing capabilities.

GIMP Tutorials: Exif Data and Copyright Info

[rajasekharan1]

reed9, thats an awesome find. thanks much. I never knew that was possible.

[reed9]

Glad to help. I don't know how to code, so I gotta give back to the community somehow!