Ian Christie-Miller Revealing Watermarks How to Enhance the Security of Hand-Made Paper Items and Reveal Hidden Data - Academic Studies Press 2021 - Mrj / YBP CIP Upgrade . ISBN: 9781644696248 Subjects--Topical Terms: Imaging SystemsHandmade paper--Europe--History--16th century.,Image processing--Digital techniques.,Paper--Analysis--Data processing.,Watermarks--Europe--Identification.TECHNOLOGY & ENGINEERING