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This function computes Euclidean distance transform for 3D binary image with non-trivial aspect ratio (i.e. anisotropic pixels). The algorithm uses fast optimized line-scans and is actually faster than MATLAB s BWDIST implementation of search on opti
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针对图像配准中常出现的RST(旋转-比例-平移)变换,推导出了相应的盒距离变换公式。与传统的基于广
义仿射变换的Hausdorff盒距离变换公式相比,缩小了搜索距离空间。在计算Voronoi表面时,根据Hausdorff距
离的计算需要提出比较滑动窗口的区域Voronoi表面,节省了计算Voronoi表面的时间。并且在利用边缘点计算
Hausdorff距离时,剔除琐碎的边缘,仅使用较长的边缘计算。试验结果表明,这些改进方法较大地提高了基于
Hausdorff距离的图像配准的计算速度。
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掌纹识别的matlab程序,包括最大内切圆求法,KL变换,小波变换,欧式距离识别方法-Palmprint recognition matlab program, including the largest inscribed circle Method, KL transform, wavelet transform, Euclidean distance to identify methods
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本文是为了实现谐波小波变换的功能,运用matlab进行编程仿真,希望对大家有用-This text makes use of a matlab progress plait distance to imitate really for carrying out the function of harmonic small wave transform, hope that the usefulness is vs everyone
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A novel texture-based Automatic Fingerprint Authentication System (AFAS) is proposed. A fingerprint image is preprocessed to enhance the image by Short Time Fourier Transform (STFT) analysis. Then, three sets of invariant moment features, as a kind o
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KL变换的MATLAB源码程序,用于图形图像地震资料等的处理。效果良好。-KL transform MATLAB source code program for graphic images such as seismic data processing. Good results.
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小波变换-图像融合的matlab代码~
图像融合实验。显微镜或照相机在某一次固定焦距下清晰成像的物距是一定的,即成像的物体只有一个层面是清晰而其它层面是模糊的,需要我们把各幅在不同焦距下的图像融合成一张图像,使得远近的物体都清晰。
设定好融合图像数、小波分解的层数、彩色图像的通道数等几个参数后,可对原图像进行融合。
本算法首先对彩色图像变成YIQ空间,对所有图像的各个颜色分量进行小波分解,然后在小波变换域上根据某种策略选取系数,最后做小波反变换和YIQ反变换即得结果图像。-Wa
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用matlab实现的计算图像中某区域的最大内接圆的程序,用的是距离变换算法-Calculated using matlab image of a region of maximum inscribed circle program, using a distance transform algorithm
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MATLAB实现图像纹理特征提取:自相关函数法、灰度共生矩阵、分数阶傅里叶变换。GUI界面。运行后可自定义自相关函数的x和y轴偏移,灰度共生矩阵的距离和角度,分数阶傅里叶变换的阶数。输出相应的特征图。(MATLAB realize image texture feature extraction: autocorrelation function method, gray co-occurrence matrix, fractional Fourier transform. GUI interf
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Matching Pursuit and orthogonal matching pursuit, Calculation of the Euclidean distance between the two matrices, Gabor wavelet transform and PCA face recognition code.
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根据现有的程序,对两幅图像分别进行二维小波变换,分别对变换后得到的水平,垂直以及对角细节子带的小波系数进行直方图统计,然后用广义高斯函数去近似三个直方图,分别得到尺度参数和形状参数,求出对应图像的KL距离。(According to the existing programs, the two images respectively, two-dimensional wavelet transform respectively to levels after transformation, ve
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实现了利用傅里叶变换求两张图像平移距离;
输入是两张具有平移关系的图片;
输出distancex,distancey表示求得的平移距离(The Fourier transform is used to calculate the translation distance of two images.
The input is two images with a translation relationship.
The output distancex, distancey repres
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利用二次傅里叶变换的方法计算图像经透镜后在指定距离的光屏上所成的像(Two times Fourier transform is used to calculate the image of the image after the lens is placed on the optical screen at the specified distance.)
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利用傅里叶变换卷积的方法计算图像经透镜后在指定距离的光屏上所成的像(Fourier transform convolution method is applied to calculate the image of the image after the lens is placed on the optical screen at the specified distance.)
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