Authors : Rasha Subhi Hameed and Abdul-Wahab Sami Ibrahim
Abstract: Halftone visual cryptography is method for encoding secret image to generated secure meaningful shares images. In this study, halftone visual cryptography scheme using dynamic codebook and chaotic maps technique is proposed for natural color image by using dynamic codebook technique the proposed method can be retrieve color secret image with perfect size and contrast as well as proposed a novel technique to distributed secret image pixels into covers image in randomly and homogenous manner based on 2 chaotic maps (logistic and Chevbyshev 1D maps). This scheme gives to the dealer absolute control to check authentication each block in the income shares and flexibility in the management share images. The experimental results, performance MSE , PSNR ,UQI , SSIM and NCC metrics shown improvement in visual quality for shares image and ideal results for recovered color secret image.
Rasha Subhi Hameed and Abdul-Wahab Sami Ibrahim, 2019. Halftone Visual Crytography Schmeme for Color Image using Dynamic Codebook and Chaotic Map. Journal of Engineering and Applied Sciences, 14: 8600-8608.