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《机器学习》课上的作业,PCA和LDA降维,尽管网上很多,但很少注释,另外细节上也没注意。这里有很详细的注释。另外还附上一个Naive贝叶斯分类器,大家可以作比较。附带的图像包是OLR人脸。ReducedDim为想要提取的特征数,不是百分比!," Machine learning" classes on the homework, PCA and LDA dimensionality reduction, even though a lot of online, but f
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这是用matlab写的dct代码用于图像的信息的隐藏和提取。。部分老师写的哦。-This is used to write the DCT matlab code for the image and extract the hidden information. . Oh part of the Writing Teacher.
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精通MATLAB图像处理代码matlab图像特征提取实战例子,包括使用图片-Proficient in MATLAB image processing code matlab image feature extraction combat examples, including the use of pictures
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matlab处理指纹图像,由于指纹的唯一性、可靠性和稳定性,指纹已成为身份识别和鉴定的一个重
要标志,并被公认为“物证之首”。指纹识别作为一种生物识别技术,历来受到人们的广泛关注和重视,是未来个人身份认证的重要组成部分。-Fingerprint image processing matlab,Because the uniqueness of fingerprints, reliability and stability,fingerprint identification has beco
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extract file
and the working is to get dct matrix of 256*256 image which is divide into each 8*8 image block
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canny edge detector. The program in matlab platform to achieve the best extraction of the canny edge operator extract the whole image edge pixel deputy. Which use Gaussian function to filter out the noise and the use of Gaussian operator of the first
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本文的处理手段是对输入的汽车图像进行预处理,运用车牌定位,字符分割,字符识别的方法提取车牌上的数字字符串,并以文本的形式输出。-This treatment method is to enter the vehicle image preprocessing, the use of license plate location, character segmentation, character recognition to extract license plate numbers on th
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matlab中的dct变换,在图像中利用dct变换嵌入水印,并提取-The dct matlab transformation in the image watermarking using dct transform, and extract
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在matlab开发环境中,提取图像的像素点,并保存-Development environment in matlab to extract the image pixels, and save
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主成分分析.mht:介绍主成分分析的文章
edgepick.m:本程序的目的是实现边缘检测
drawprim.m:找到最大主分量所在的位置,从而在原图象中绘出
practical.m:一个主分量的程序,边缘检测和主分量提取
prin.m:该程序是用princomp函数来提取矩阵的主成分-Principal component analysis. Mht: the article describes the principal component analysis edgepick
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缺陷识别m文件,对缺陷图像进行中值,小波去噪,利用数学形态学方法提取二进制图像轮廓,并计算裂纹等缺陷的面积和周长-M file defect identification, the value of the defect in the image, wavelet denoising, using mathematical morphology to extract the binary image contour, and calculates the cracks and other def
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提出了一种基于小波变换可抗击几何攻击算法。在水印嵌人
部分# 首先对宿主图像进行小波分解
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嵌人水印, 再通过余弦变换求得该水印图像的一个特征向量, 利用该特征向量和水印
信息通过12 31 函数生成一个二值逻辑系列, 将该序列作为密钥/ 水印提取部分为# 对待测的图像进行小波变换, 再通过余
弦变换求得待测图像的一个特征向量, 利用该特征向量和密钥通过1 2 4 1 函数提取出水印。-Proposed based on wavelet transform algorith
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提出了一种鲁棒的多水印嵌入与检测算法,该算法基于小波域,且提取水印时不需要原始图像,保护了原始图像的安
全。在该多水印算法中,提出并使用了一种将密码学和常规的数字水印制作方法- - - 叠加法和量化调制法,有机结合起
来的新的方法,在水印嵌入时,不同的水印,生成与该水印相关的不同的密钥,在进行水印的提取时,用不同的密钥和待测的
图像提取出相应的水印。通过将密钥向第三方注册,可以获得对原始图像的所有权。-A robust multi-watermark embedding and de
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chromekey in matlab for extract image and paste on to other image matlab codes-chromekey in matlab for extract image and paste on to other image matlab codes
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重要参数的提取,是路径规划的实用方法,仿真图是速度、距离、幅度三维图像,在matlab R2009b调试通过,针对EMD方法的不足。- Extract important parameters, Is a practical method of path planning, FIG simulation speed, distance, amplitude three-dimensional image, In matlab R2009b debugging through, For lack
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image processing extract the file and open it in matlab
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配合MATLAB摄像机标定工具箱使用的投影仪标定工具箱,对投影仪进行标定,需解压到matlab路径,将采集好的投影棋盘格图像载入即可-With the MATLAB camera calibration toolbox used in the projector calibration toolbox, the projector calibration, the need to extract to the matlab path, will be a good collection of c
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2d and 3d gabor filter used to extract some features of image/video for the quality assessment method
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DNMF在matlab中的实现,基于R语言的示例改写(Discriminant Non-Negative Matrix Factorization aims to extend the Non-negative Matrix Factorization algorithm in order to extract features that enforce not only the spatial locality, but also the separability between classe
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本设计为基于MATLAB特征点匹配的指纹识别系统。带有一个GUI界面。主要对指纹图像进行三方面处理:图像预处理、特征提取和特征匹配。图像预处理包括四个步骤:图像分割、滤波增强、二值化、细化,对指纹图像进行预处理后,去除了原图像的冗余部分,方便后续的识别处理;特征提取主要是提取指纹图像细化后的端点和分叉点;特征匹配是利用两个指纹的图像进行特征点比较,来确定两幅图像是否来自于同一手指。(This design is a fingerprint recognition system based on
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