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yuzhihuafenge
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)
- 2011-11-14 21:10:46下载
- 积分:1
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Lucas_Kanade
一个运动估计运算的MATLAB文件,本人已经测试过,非常有用。(A motion estimation MATLAB file operations, I have been tested, very useful.)
- 2008-08-15 13:34:30下载
- 积分:1
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ju
说明: 图像特征提取,不变矩。hu矩。f1~f7.用于物体识别。(hu)
- 2009-08-20 14:42:49下载
- 积分:1
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watermark.m
%基于DCT的水印算法
%数字水印处理系统主要由水印嵌入和水印检测两个过程。
%水印嵌入过程为:数字水印(X)、原图像(I)和密钥/公钥(K)通过数字水印嵌入算法形成嵌入水印后的图像(I*)。
%水印检测过程为:数字水印(X)、水印图像(I*)和密钥/公钥(K)通过数字水印检测算法检测出数字水印或有无水印。
%基于DCT变换的水印算法:将一个随机序列作为水印信号嵌入到图像DCT变换重要分量的幅度成分中(幅值较大的n个系数作为重要分量)。
%定义一个相似函数来检验水印提取是否成功。试验结果表明,该算法具有不可见性,对通常的图像处理,如剪切、缩放、中值滤波、压缩等
%以及噪声干扰都具有一定的鲁棒性。(err)
- 2021-01-05 20:18:55下载
- 积分:1
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阵列信号处理方面的经典程序 MATLAB
阵列信号处理方面的经典程序,包括MUSIC算法,ESPRIT 算法,Root-MUSIC算法面阵中二维角度估计 Unitary -ESPRIT算法,空间平滑MUSIC算法,传播算子DOA估计算法等等(Classical array signal processing procedures, including the MUSIC algorithm, ESPRIT algorithm, Root-MUSIC algorithm for two-dimensional planar array of point estimates Unitary-ESPRIT algorithm, spatial smoothing MUSIC algorithm, propagator DOA estimation algorithm, etc.)
- 2020-11-10 23:29:47下载
- 积分:1
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矩阵填充经典算法的代码 MatrixcompletionCode
说明: 矩阵填充经典算法的代码,包含SET,SVT等(Matrix filling code of classical algorithm, including set, SVT, etc)
- 2019-12-18 12:07:09下载
- 积分:1
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ostufish
ostu与鱼群算法相结合,并且用matlab实现(ostu algorithm combined with the fish, and using matlab)
- 2021-03-01 11:09:35下载
- 积分:1
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code
DCT数字水印基于CVI平台。用c编写的。(DCT digital watermarking)
- 2013-09-17 22:33:45下载
- 积分:1
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example
使用C++和CUDA编写的双边滤波器。在平滑图像的同时可以保持边界(Using bilateral filter the C++ and CUDA written. Boundary can be kept in the smooth image while)
- 2013-01-09 19:06:43下载
- 积分:1
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DoG
DOG检测算子,能够构造高斯尺度空间,并检测其中的极值,从而得到有价值的特征点位置(DOG detection operator, the Gaussian scale space can be constructed, and tested one of the extremes, resulting in valuable feature position)
- 2021-03-27 22:39:12下载
- 积分:1