2019_MCMProblemC_DATA

Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document. A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.

车牌字符识别matlab源程序车牌字符识别matlab源程序车牌字符识别matlab源程序(The license plate character recognition matlab source code license plate character recognition matlab source code license plate character recognition matlab source code)

完成对任意一个文本文件的字符统计工作。可以统计的信息有中文字符数、英文单词数、行数、字符个数（不计空格）和空格数。 (Calculate Chinese characters, English words the number of rows, number of characters (excluding spaces) and number of spaces in a txt file.)

说明：  基于matlab的贝叶斯网络预测模型，能够预测事件发生的概率。(Matlab based on Bayesian network model to predict the probability of events.)

卷积码的matlab仿真，经由simulink搭建的系统平台(Convolutional codes matlab simulation platform erected by simulink)

单摆振动运动规律的傅立叶分析MATLAB程序(Fourier law of motion of simple pendulum vibration analysis of MATLAB programs)

很不错的ofdm仿真程序，改程序会使你对正交频分复用有较深的理解(OFDM is a good simulation program, changing the procedure would you OFDM has a better understanding of)

squeezer is clustering algorithm

说明：  近年来比较新的压缩传感运用到CT重构，有TV加权，高阶TV等，效果都很好(A Novel Weighted Total Difference Based Image Reconstruction Algorithm for Few-View Computed Tomography)

偏最小二乘法的回归计算，用于多元统计中的一种算法(method of partial least square)