position scrambling

基本解释

The announcer will call your name. Have the cube in solved position and place it on the scrambling table.
主持人会宣布参赛人姓名。请将魔方还原，交给打乱员。
Be aim at the security of digital image, we introduce a kind of digital image scrambling schemes based on position space.
针对数字图像的安全保密问题，本文介绍了一种基于位置空间的数字图像置乱技术。
In the middle, there's everyone else. Dallas, Oklahoma City, Utah, Denver and New Orleans all are scrambling for position in a race that exists in multiple dimensions.
剩下的几个队就都分布在中游了：达拉斯、俄克拉荷马、犹他、丹佛和新奥尔良的排名之争伴随多种变数。

Wealthy entrepreneurs are scrambling for position.
FORBES: Magazine Article
And meanwhile, every rival was scrambling furiously to steal some of the buzz Ford had created by boldly staking out its position on automotive infotainment.
FORBES: Ford Is Cut Up By Cutting Edge Of Car-Infotainment Technology

位置置乱
Through designing the key and pixel point rearranging, the method achieves position scrambling and achieves the purpose of image encryption. With Matlab software, the results demonstrate the practicality of the method.
另外,本文在分析现有的经典数字图像置乱方法的基础上,结合混沌序列提出一种基于图像分割思想的数字图像置乱方案,该方法是通过密钥的设计对像素点进行重新排列以实现位置置乱,从而达到图像加密的目的。