According to a recent story in Photography Bay, Canon has applied for a patent to use Iris watermarking to help photographers protect their images. In short, you have the camera read your iris, then it embeds your unique biological data into every shot. You can have additional metadata added if you wish. (Notice the callout 106d that indicates Registration mode.)

This is really interesting stuff. If you want to read more about how Canon envisions this, take a look at the Photography Bay article. It may be available on your next camera...

Technorati Tags: Canon, digital photography, Technology, The Digital Story, Iris Registration