New-folder-(3)

Principal Component analysis comparision with PLS method.

The enhancement of image contrast and preservation of image brightness are two important but conflicting objectives in image restoration. Previous attempts based on linear histogram equalization had achieved contrast enhancement, but exact preservation of brightness was not accomplished. A new perspective is taken here to provide balanced performance of contrast enhancement and brightness preservation simultaneously by casting the quest of such solution to an optimization problem. Specifically, the non-linear gamma correction method is adopted to enhance the contrast, while a weighted sum approach is employed for brightness preservation. In addition, the efficient golden search algorithm is exploited to determine the required optimal parameters to produce the enhanced images. Experiments are conducted on natural colour images captured under various indoor, outdoor and illumination conditions. Results have shown that the proposed method

Introduction to matlab

声场计算模型for3d的in文件写入，仅供参考(to write the in-file that the for3d programme need.)

给定威布尔函数的lambda和k，直接绘制其累积概率的图。(A given weibull function of lambda and k, directly map the cumulative probability.)

说明：  降低无线传感器网络能耗，分簇算法，在初学wsn中可以提供较大参考与帮助，希望能帮助初学者。(Reduce energy consumption of wireless sensor network, clustering algorithm)

利用此matlab程序可以建立偏最小二乘模型，每句语言都有相应的详细的注释，方便读程序-Use this matlab program can build partial least-squares model, every language has a corresponding detailed notes to facilitate reading of the procedures

How to find wavelet coefficient of EEG

说明：  系统辨识中的各种辨识算法：如最小二乘法、递推最小二乘法、广义最小二乘、变遗忘因子递推算法等。(System Identification of identification algorithm : if the least-squares method, recursive least squares method, generalized least squares, changing the forgotten factor algorithm.)

这是2009年huang在EMD基础上改进的算法EEMD的matlab代码！(This is the huang in 2009 based on the improved EMD algorithm EEMD matlab code!)