An artist posts an image of their work online with a creative commons attribution licence (on site A), someone reposts the image with attribution on another site (site B), the internet happens and the image has been cropped resized and the attribution notice is lost.
The (tentative) solution:
The artists name, web site and attribution licence is steganographically embedded into the image. So consumers of the image or web sites who host these images can pull out the data (and display it).
How would I go about steganographly embedding data into an image, that will be resilient to resizing and cropping?
Things not to worry about:
- Tampering of the data
- Just using exif metadata (as that is often lost)
- Convincing all the artists they should do this