In a message dated 2/4/03 5:54:49 PM, [EMAIL PROTECTED] writes: << I recall that an archeological dig near Hadrian's wall retrieved a number of fine wooden slips with day to to day admin notes (like "here is your fresh underwear"). These were barely legible when recovered but totally black a few hours later. A university copied them with IR & had excellent results.
I'm sorry that I can't recall more detail. David Hoffman >> Dear David That's the problem of listening to radio 4 in the car. I heard it too. I seem to remember that the images were enhanced in Photoshop using false colour masks like colour IR film. Bob Croxford =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
