shujufenxi

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.

Transformada discreta de Fourier

说明：  ＬＥＡＣＨ算法ＭＡＴＬＡＢ源代码，适合研究使用(LEACH algorithm matlab source code, suitable for research and use)

Correct pitch using the Time Shifting algorithm.

说明：  this is 13 node distribution network with DGs and relays.

CFAR即恒虚警检测，是雷达信号处理领域的经典处理算法，其核心是在保证虚警概率一定的条件下，尽可能提高检测概率(CFAR that is constant false alarm detection, radar signal processing field of the classic algorithm, its core is to ensure that the false alarm probability of certain conditions, as far as possible to improve the detection probability)

基于卡尔曼滤波的MATLAB 扩展程序，可以供大家参考下(Kalman filter-based MATLAB extension, for your reference)

Lax法求解一介波动方程，初始条件：c=1m/s,x=1-2时，u=2m/s.(Lax method to solve wave equation)

说明：  这是一本关于MATLAB编程的电子图书,方便大家使用.(This is a book about MATLAB programming e-books, to facilitate the use of everyone.)

Convert IB-specific error message to RDS error message and call core completion handler.