Title :
Embedding secret information into a dithered multi-level image
Author :
Tanaka, Kiyoshi ; Nakamura, Yasuhiro ; Matsui, Kineo
Author_Institution :
Dept. of Comput. Sci., Nat. Defense Acad., Yokosuka, Japan
fDate :
30 Sep-3 Oct 1990
Abstract :
A coding scheme for secretly embedding character information into a dithered multilevel image is presented. This scheme inputs both a monotone image and secret information, which is converted to binary sequences, and it outputs a single dithered image. This image contains the character data of about 2 kByte in a dithered bilevel image 3 kByte in a dithered three-level image of 256×256 pixels, and it appears to be an ordinary dithered image. This scheme is available for storing a picture in a database or communication system with secret information
Keywords :
encoding; picture processing; 256 pixel; 65536 pixel; binary sequences; character information embedding; coding; communication system; database; dithered bilevel image; dithered multilevel image; dithered three-level image; monotone image; picture processing; picture storage; secret information; Binary sequences; Computer science; Data processing; Displays; Image coding; Image converters; Image databases; Pixel; Printers; Protection;
Conference_Titel :
Military Communications Conference, 1990. MILCOM '90, Conference Record, A New Era. 1990 IEEE
Conference_Location :
Monterey, CA
DOI :
10.1109/MILCOM.1990.117416
