Transparency of pixels of the shares (the two or more encrypted images) can be used to reveal the secret image. The pixels of shares can be generated ...
Abstract—Transparency of pixels of the shares (the two or more encrypted images) can be used to reveal the secret image. The pixels of shares can be ...
Jul 29, 2021 · In this paper, we propose a new color visual cryptography scheme based on the modified visual cryptography. This scheme can share a color secret ...
Comparison of the outcomes when cover image is used and when not used to generate shares shows that the latter is more sensitive to the transparency factor ...
The performance of the visual cryptography is measured in different ways such as pixel expansion, security, contrast, number of secret images, and the type of ...
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Abstract: Visual Cryptography is a special encryption technique to hide information in images, which divide secret image into multiple layers.
each pixel in the original image is mapped into several subpixels in both transparency I and. II. The distribution in each transparency of the colour of ...
In this method we use a black mask to cover the colors that we want to conceal in the stacked image. The regular black pixels are treated as image background ...
The aim of this case study is to demonstrate a digital watermarking scheme using visual cryptography for copyright protection of a digital image.
Visual cryptography is a method of encryption that allows a picture to be encrypted into multiple shares and decrypted by aligning the shares correctly.