barlow

Zhou Wang proposed a new idea of Structural Similarity Index (SSIM )for image quality measurement based on the assumption that the HVS is highly adapted to extract structural information from the viewing field. The Mean Structural Similarity Index (MSSIM) contains three parts: Luminance Comparison l(x, y), Contrast Comparison c(x, y) and Structure Comparison s(x, y).

基于小波变换的数字水印算法matlab代码，结合PCA的尺度不变特征变换(SIFT)算法，有详细的注释。( Based on wavelet transform digital watermarking algorithm matlab code, Combined with PCA scale invariant feature transform (SIFT) algorithm, There are detailed notes.)

一维边值为0的微分方程，有限元方法逼近问题的解，给出误差的lebesgue模估计和能量估计。copy到命令窗口里运行即可。(solove one dimension ODE in FEM,and give error estimate)

matlab下利用s-function实现rs232编码、解码及通讯的实例程序。需要在matlab下利用mex编译使用（参见s-function用法）(matlab using s-function to achieve rs232 encoding, decoding and communication procedures of the examples. Need to use matlab using mex compiler (see the use of s-function))

说明：  这是9225的初始化资料，绝对OK,已测试过的，效果非常不错，欢迎大家试用(This is the 9225 initialization information, absolutely OK, have been tested, the effect is very good, welcome trial)

灰色处理，预测模型，GM(1,1)一次累加(Gray processing, prediction model)

矩形排样的剩余矩形优化算法。在matlab中的实现。(The rectangle layout of the remaining algorithm, MATLAB optimization and efficient use of raw materials )

说明：  一种脉振高频注入的永磁同步电机无传感器控制simulink仿真(Sensorless control simulink simulation of permanent magnet synchronous motor with pulsed high frequency injection)

FSK实现，对数据的调制和解调，加入高斯白噪声，最后产生眼图。(FSK implementation, the data modulation and demodulation, add Gaussian white noise, and finally generate the eye diagram.)

最小化L1范数求解，通过L1-LS工具包。(L1 norm minimization solution, through the L1-LS kit.)