7个不变矩的在Matlab中的实现，提供代码供大家参考。

给定输入信号以及信噪比，计算出对应的噪声-For a given input signal and the signal to noise ratio to calculate the corresponding noise

实现分类功能；利用matlab 编程，然后将两类可分的类别分离开来-To achieve classification the use of matlab programming, and then can be divided into two categories separated from the

OTSU 算法可以说是自适应计算单阈值（用来转换灰度图像为二值图像）的简单高效方法。算法对输入的灰度图像的直方图进行分析，将直方图分成两个部分，使得两部分之间的距离最大。划分点就是求得的阈值。-Otsu algorithm can be said to be adaptive to calculate the single threshold (for converting images to gray scale image 2) simple Efficient methods. Algorithm for the importation of gray image histogram analysis of histogram is divided into two parts. makes two of the distance between the largest. Demarcation point out the threshold.

第二届全国高校 BBS 程序开发大赛算法组-Second National College BBS Development Competition Algorithm Group

包括Canny边缘检测算子、罗伯特(Roberts)边缘检测算子、索伯尔(Sobel)边缘检测算子、普瑞维特(Prewitt)边缘检测算子、克瑞斯(Krisch)边缘检测算子和高斯－拉普拉斯(LoG-Laplacian)算子等。-Includes Canny edge detection operator, Robert (Roberts) edge detection operator,索伯尔(Sobel) edge detection operator,普瑞维特(Prewitt) edge detection operator, Chris (Krisch) edge detection operator and Gauss- Laplace (LoG-Laplacian) operator and so on.

这个Matlab程序用于颜色空间的转换。可以在RGB, YPbPr, YCbCr, YUV, YIQ, YDbDr, JPEG-YCbCr, HSV, HSL, XYZ, CIE Lab (CIELAB), CIE Luv (CIELUV), and CIE Lch (CIELCH)等颜色空间中任意转换。.rar-The Matlab program used for color space conversion. In RGB, YPbPr, YCbCr, YUV, YIQ, YDbDr, JPEG-YCbCr, HSV, HSL, XYZ, CIE Lab (CIELAB), CIE Luv (CIELUV), and CIE Lch (CIELCH) such as color space conversion arbitrary. . rar

图像的几何变换 图像平移 图像镜像变换 图像转置 图像缩放 图像旋转-Geometric transformation image image image image translation transpose transform image image scaling image rotation

K均值图像分割，读入彩色图片，输出区域分割后的图片-K-means image segmentation, read full-color photographs, the output image after the region segmentation

几个关于图像质量评价的函数。包括psnr峰值信噪比，均方误差rms，正则均方误差nmse等。可用于去噪图像和压缩图像的质量评价-several image quality evaluation of the function. Including psnr PSNR, mean square error rms, it is mean-square error nmse other. Images can be used for de-noising and compression of image quality evaluation

分而治之方法还可以用于实现另一种完全不同的排序方法，这种排序法称为快速排序（quick sort）。在这种方法中， n 个元素被分成三段（组）：左段l e f t，右段r i g h t和中段m i d d l e。中段仅包含一个元素。左段中各元素都小于等于中段元素，右段中各元素都大于等于中段元素。因此l e f t和r i g h t中的元素可以独立排序，并且不必对l e f t和r i g h t的排序结果进行合并。m i d d l e中的元素被称为支点( p i v o t )。图1 4 - 9中给出了快速排序的伪代码,,Delphi 赫夫曼编码.rar.rar - 用delhi做的程序实现了哈夫曼编码，做的还不错。,,Delphi -divide and rule method can be used to achieve an entirely different sort of way This sorting called Quick Sort (quick sort). In this approach, n elements is divided into three (group) : Left of the l e f t, Right of g h i r t and middle m i d e d l. Middle contains only one element. Left of the elements are less than equal to the middle element of the right elements are larger than the middle element. So l and f t e r t h i g of elemental independent sort, and no need to l and f t e r t h i g ranking results merger. M i d e d l The element known as Fulcrum (p i v o t). Figure 1 4-9 is given a quick sort of pseudo-code. Delphi Hefuman coding. rar.rar- delhi do wi