Quote:
Originally posted by spanky
roadtrip, if you're still reading this thread, do you mind me asking how robust your brand is to scaling, shearing and rotation? Ultimately if the image has to be significantly degraded to get rid of the brand then the image would no longer be usefull and everybody is happy except the thief.
Digimarc has some watermarking and digital id technologies but I don't believe that they withstand rotation and scaling very well.
cheers
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Scaling and shearing haven't been a problem.
To be honest, it never occured to me to rotate the
image!
I developed the system orginally for a live java jpeg
stream system. It was encoded at 320x240x16m,
branded, sent across the net at 18fps, interpolated
to 640x480x16m and displayed. Both sized images
ofcoarse retained the branding... but I never thought
to rotate and take a read. (I could blew the browser
up all I wanted if someone tried to save and image,
but the client wanted a watermark too.)
It would still contain the branding, it would just
have to be read based on the new orientation of
the jpeg blocks.
THANKS! A project is born for my bus trip between
the strip clubs this weekend.