An improved image total scrambling algorithm based on chaotic system,which utilizes the random-alike,erogic and extreme sensitivity to parameters and initial values of chaotic system is proposed in this paper,and detailed procedure is also given.

Digital halftone based on image scrambling technology;

Measurement of modern image scrambling degree;

An evaluation method of image scrambling degree based on correlation;

With the security problem of image information as the background,based on the method of determinant com-puting,a new class construction method for digital image scrambling encryption is presented.

The technology of digital image scrambling is a supplemen.

Moreover,the inverse transformation can be an image scramble transformation and its anti-scramble transformation is Arnold transformation.

There are many applications using Arnold transformation in digital image watermark and digital image scramble technology,but because of the long periodicity of traditional anti-Arnold transformation,and large time and memory consumption of computation,the further development is limited.

In this paper, a definition of image scramble degree is given to form an objective measure, and then anti-Arnold transformation arithmetic is presented with mathematical proof.