Efficiency of cropping system designs via base contrast
نویسندگان
چکیده
منابع مشابه
Visual Cryptography II: Improving the Contrast Via the Cover Base
In Eurocrypt'94 [3] we proposed a a new type of cryptographic scheme, which can decode concealed images without any cryptographic computations, by placing two transparencies on top of each other and using the decoder's (human) visual systems. One of the drawback of that proposal was a loss in contrast: a black pixel is translated in the reconstruction into a black region, but a white pixel is t...
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ژورنال
عنوان ژورنال: Applicationes Mathematicae
سال: 2000
ISSN: 1233-7234,1730-6280
DOI: 10.4064/am-27-4-377-384