中间调
可视密码
计算机科学
计算机视觉
人工智能
图像(数学)
彩色图像
数字图像
密码学
信息隐藏
作者
Shivani Pahuja,Singara Singh Kasana
出处
期刊:International Conference on Computer Communications
日期:2017-07-01
卷期号:: 281-285
被引量:6
标识
DOI:10.1109/comptelix.2017.8003979
摘要
Visual cryptographic schemes (VCS) allow one(at the sender side) to encrypt a secret picture (image) into different share images. Here no share image does uncovers any knowledge concerning to the original secret image. This work proposes visual cryptography encryption framework by using an algorithm developed by Floyd and Steinberg's for error diffusion for grayscale as well as color images. Floyd Steinberg diffusion technique continuously delivers(generates) delighting colored halftoned images for our natural vision system of humans. A color image to be protected is taken as input and then this image is decomposed into three separate monochromatic images based on CMY color space. The computer simulation demonstrates that the visual nature and tone (in terms of quality) of the acquired halftoned shares is acceptable.
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