A secret-sharing-based method for authentication of grayscale document images via the use of the PNG image with a data repair capability

von Lee, Che-Wei
Veröffentlicht in: IEEE transactions on image processing : a publication of the IEEE Signal Processing Society (2012)

Generic lossless visible watermarking--a new approach

von Liu, Tsung-Yuan
Veröffentlicht in: IEEE transactions on image processing : a publication of the IEEE Signal Processing Society (2010)