Title :
Color extended visual cryptography using error diffusion
Author :
Kang, InKoo ; Arce, Gonzalo R. ; Lee, Heung-Kyu
Author_Institution :
Dept. of Elecrtical & Comput. Eng., Univ. of Delaware, Newark, DE
Abstract :
This paper introduces a color visual cryptography encryption method that produces meaningful color shares via visual information pixel (VIP) synchronization and error diffusion halftoning. VIP synchronization retains the positions of pixels carrying visual information of original shares throughout the color channels and error diffusion generates shares pleasant to human eyes. Comparisons with previous approaches show the superior performance of the new method.
Keywords :
cryptography; image resolution; synchronisation; binary image; color channels; color visual cryptography encryption method; error diffusion halftoning; visual information pixel synchronization; Color; Colored noise; Computer errors; Computer science; Cryptography; Degradation; Frequency synchronization; Gray-scale; Humans; Virtual colonoscopy; color visual cryptography; error diffusion;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-2353-8
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2009.4959873
