otsu

可以用来计算MTF值，用matlab编写的，数据文件需要为Excel格式。(MTF can be used to calculate the value, using matlab prepared.)

本matlab程序可生成低通滤波器，数字图像处理(The matlab program can generate low-pass filter, digital image processing)

人群密度估计，导入视频，生成一帧一帧的图片，并判断密度是否超过阈值，超过的报警。(Crowd density estimation, the introduction of video, generate a frame of pictures, and determine whether the density exceeds the threshold, more than the alarm.)

VC++图像程序处理 是由杨淑莹老师编写的 对于计算机视觉 等课程有重要作用 (VC++ image processing program written by Yang Shuying teacher courses for computer vision plays an important role)

matlab输入CAD图像文件，matlab中图形导入CAD，matlab与CAD互转(Matlab Input CAD Image File or graphics Import into CAD in matlab or matlab and CAD Interchange)

数字图像处理方面的常用操作 人脸识别 图像打开和保存 类似photoshop操作 (Digital image processing operations commonly used face recognition and preservation of the image to open a similar operation photoshop)

图像分割是把图像划分成具有实际意义的互补交迭的区域的集合。在图像分割之前，图像区域的数目未知，而在分割后各个区域同时满足均匀性和连通性的条件，故图像分割是一个复杂的过程，目前大多数研究都是针对某一类型图像或者某一具体应用的分割。图像阈值化分割的基本思想是确定一个阈值，然后把每个像素点的像素值和阈值相比较，根据比较的结果把像素划分为两类，前景(1)或背景(0)。该方法的关键是确定一个最优的阈值。常用的阈值确定方法有直接门限法、类间最大方差法(otsu法)、分水岭算法、最小误差法、最大熵法等。该段代码就是图像的阈值分割。(The image segmentation is divided into the practical significance of the emerging area of complementary set. In the image segmentation, before the number of image region, the unknown, and after each area in division at the same time satisfy the uniformity and connectivity condition, so the image segmentation is a complicated process now, most research are for a certain type image or a particular application of the division. Image threshold segmentation of the basic idea is to determine a threshold, then put each pixel threshold value of the pixels and compared, according to the result of the comparison the pixel divided into two categories, the prospect (1) or background (0). This method is the key to determine an optimal threshold. Commonly used method to determine the threshold value of direct threshold method, the largest of the variance between method (otsu method), watershed algorithm, the minimum error method, the maximum entropy method, etc. When the code is image threshold segm)

本次变成是基于matlab的有关图像压缩的仿真程序，希望能帮到大家(This is a simulation program of image compression based on MATLAB. I hope to help you.)

光流（运动估计）经典算法Horn and Schunck算法MATLAB程序(optical flow (Motion Estimation) classical algorithm Horn and Schunck algorithm MATLAB)

依巴谷输入星表集（第2版）是一个恒星数据星表，其中主星表中包含了120313个天体最新非常精确的位置、自行、星等、颜色、光谱型、视差、径向速度等信息。(data of star)