Are there any means whereby a professional photo lab can embody a symbol
or mark into a photo print during the printing process which would be
invisible to the human eye but which would be detected by a scanner and
would show up very clearly on the digital image file?
I know that invisible marks can be embodied into scanned image files
[Digimark?] but is there anything similar for hard copy photographs?
Any help will be greatly appreciated.
John Hudson
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|