Sheila Perry writes:
> Hello all,
> This is just to ask if anyone on the list has experience of the dynamic
> watermarking of images. In particular, I would like to try and find out
> whether this is likely to make the resulting images unacceptably slow to
> download from websites? I suspect it's more complicated than that, but
> it would be very helpful to get some ideas.
Do you mean visible watermarks or the invisible (steganographic)
watermarks that the Signum and Digimarc technologies can make. Either
way it depends on the processing power of the server doing the
job. Your neighbours at SCRAN do this all the time and should have
some figures. Our experience is that it's only worth doing on larger
images and these tend to be the more time-consuming.
Mike Stapleton
System Simulation
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