How to copy protect images...

[akelsall]

Is there a utility similar to Adobe's "digital watermark" that I can use to copy protect my images? Something that would allow "batch processing" would be preferable.

Thanks,

Andy

[lkjoel]

Do you mean Ghosting Text?

[owise1]

There is also a plugin for GIMP that allows you to embed text into the picture - G'MIC Fourier Watermark. Makes for an invisible watermark that can then be viewed with the Fourier Filter

Dave

[stmiller]

There's also imagemagick (command line only).

It can do batch processing, though options get a bit extensive. Be careful - actions are destructive with no undo.

Ex:

http://www.cyberciti.biz/faq/how-do-i-create-watermark-with-imagemagicks-composite-command-in-linux/

[dtschump]

There is also a plugin for GIMP that allows you to embed text into the picture - G'MIC Fourier Watermark. Makes for an invisible watermark that can then be viewed with the Fourier Filter

Dave

G'MIC is also available as a command line tool which can considered as a replacement to imagemagick :

http://gmic.sourceforge.net

Current stable version 1.4.2.0 proposes the '-watermark' option :


gmic -h watermark

-watermark _text,_size>0
Add an textual watermark in the frequency domain of selected images.


(to be renamed 'watermark_fourier' in future releases).
So you can call it from a shell, as :


for i in *.jpg; do gmic $i -watermark \"foo fuu\",57 -o w_$i; done

[HermanAB]

The Imagemagick command line tool is called 'convert', so run 'man convert'.

[akelsall]

I'm actually looking for something that can be embedded in the image, but not visible to the eye (so that if someone were to use a photo I took, I could prove I was the original owner). Is there anything available like
that for Linux?

Thanks,

Andy

[acreech]

I'm actually looking for something that can be embedded in the image, but not visible to the eye (so that if someone were to use a photo I took, I could prove I was the original owner). Is there anything available like
that for Linux?

Seems like I have seen a script for Gimp that does that. You might look through these script-fu's which can be added to your gimp.


http://registry.gimp.org/

acreech

[kwacka]

Checkout:

http://en.kioskea.net/faq/4541-gimp-add-watermarks-on-your-digital-arts

http://www.ohbuntu.blogspot.com/2010/01/batch-watermark-script-ubuntu-zenity.html

I've tried neither, but proably setting opacity levels to zero would give an invisible watermark.

The problem that I can see is that it you will need to recover an image that has been copied to demonstrate that it has been copied.

A visible watermark can be removed but will reduce the likelihood that it will be copied.

[akelsall]

Thanks to all who replied to my posting. I think I may have to go the watermark route. The GIMP and Zenity look promising.

Thanks again!

Andy