Image authentication by exact histogram specification

Author

Coltuc, Dinu ; Chassery, J.M. ; Bolon, Ph

Author_Institution

LIS-ENSIEG, Nat. Polytech. Inst. of Grenoble, Saint-Martin d´´Heres, France

fYear

2001

fDate

2001

Firstpage

499

Lastpage

504

Abstract

The paper proposes a spatial domain watermarking scheme for image authentication and, in case image content has been changed, for localization of the altered area. A pseudo-random set of pixels is selected by using a secret key and is marked with a visually meaningful watermark by exact histogram specification. The exact recovery of the watermark authenticates the image. Specially designed watermarks are used to locate the altered area. Image visual aspect as well as image histogram are preserved. The approach addresses gray level and color images as well

Keywords

copy protection; data encapsulation; image coding; image colour analysis; security of data; statistical analysis; altered area localization; color images; exact histogram specification; exact recovery; gray level images; image authentication; image visual aspect; pseudo-random pixel set; secret key; spatial domain watermarking; visually meaningful watermark; Authentication; Color; Histograms; Image processing; Image restoration; Pixel; Protection; Random number generation; Robustness; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Signal Processing, 2001 IEEE Fourth Workshop on

Conference_Location

Cannes

Print_ISBN

0-7803-7025-2

Type

conf

DOI

10.1109/MMSP.2001.962782

Filename

962782