什么是像素扩展？它如何影响对比度 [英] What is pixel expansion ? how it affected to contrast

问题描述

什么是像素扩展？它如何影响图像的对比度？如何最小化像素扩展。

解决方案

如果加密中的像素扩展不简单则会出现问题。如果有解释，例如，这里：

http://eprint.iacr.org/2006 /170.pdf [ ^ ]。



您将从文章中看到，在从股票重建的图像中（股票和重建在第一段中定义）文章），对比总是受到影响。有关优化像素扩展的工作，但很难找到或访问它们。一般来说，这是计算机科学的水平，通常超出那些被称为软件工程师的人的95％以上...... :-)



< DD> -SA

What is pixel expansion ? how it affected to contrast of image ? how to minimize pixel expansion.

解决方案

The problem if pixel expansion in cryptography is not simple. If is explained, for example, here:
http://eprint.iacr.org/2006/170.pdf[^].

You will see from the article, that, in the image reconstructed from the shares (shares and reconstruction are defined in the first paragraph of the article), the contrast always suffers. There are works on optimization of the pixel expansion, but they are hard to find or access. Generally, this is the level of computer science which is typically beyond the capability of 95%+ of those people who are called "software engineers"… :-)

—SA

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