statictis-analysis

图像清晰度分析，基于平均值法，数值模拟，matlab(Image resolution analysis, based on average method, numerical simulation of matlab)

Everyday Practical Electronics Magazine 2010 september

Visual Cryptography is based on cryptography where n images are encoded in a way that only the human visual system can decrypt the hidden message without any cryptographic computations when all shares are stacked together. This paper presents an improved algorithm based on Chang’s and Yu visual cryptography scheme for hiding a colored image into multiple colored cover images. This scheme achieves lossless recovery and reduces the noise in the cover images without adding any computational complexity.

Some thoughts about steganography

解非线性方程,方程首先要给定两个初始值，并且函数在这两个值的函数值的乘积小于0(solve equantions that are not linear)

直接将秘密图像的高4bit隐藏在RGB载体图像的R,G,B层中所选的那一层的低4bit,并将秘密图像提取出来，最后显示。要求载体图像的大小大于等于秘密图像的大小，且秘密图像是二值或灰度图像(Directly to the secret image hidden in the high-4bit RGB vector images R, G, B layer, then a layer of selected low 4bit, and extracted secret image, the final show. Required size of the image carrier is greater than equal to the size of the secret image, and the secret image is a binary or gray image)

自适应控制中，用Matlab算法实现带遗忘因子递推最小二乘参数估计(Forgetting factor recursive least squares parameter estimation)

How to compute synthetic seismograms with the program system G E M I N I

Implementation of Ceaser Cipher in C

精通matlab辅导与指南，一本学习matlab的好书，代码多，轻松学习掌握matlab。(Proficient in matlab counseling and guidance of a good book to learn matlab, code and more easily learn to master matlab.)