资源简介
改进的sift算法,称为surf,来实现图像的匹配,并显示。
代码片段和文件信息
% Example 2 Corresponding points
% Load images
I1=imread(‘TestImages/testc1.png‘);
I2=imread(‘TestImages/testc2.png‘);
% Get the Key Points
Options.upright=true;
Options.tresh=0.0001;
Ipts1=OpenSurf(I1Options);
Ipts2=OpenSurf(I2Options);
% Put the landmark descriptors in a matrix
D1 = reshape([Ipts1.descriptor]64[]);
D2 = reshape([Ipts2.descriptor]64[]);
% Find the best matches
err=zeros(1length(Ipts1));
cor1=1:length(Ipts1);
cor2=zeros(1length(Ipts1));
for i=1:length(Ipts1)
distance=sum((D2-repmat(D1(:i)[1 length(Ipts2)])).^21);
[err(i)cor2(i)]=min(distance);
end
% Sort matches on vector distance
[err ind]=sort(err);
cor1=cor1(ind);
cor2=cor2(ind);
% Show both images
I = zeros([size(I11) size(I12)
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
文件 1211 2010-09-06 12:26 surf\example2.m
文件 1776 2010-09-06 13:00 surf\example3.m
文件 1335 2010-09-06 07:21 surf\license.txt
文件 3778 2010-09-06 12:27 surf\OpenSurf.m
文件 603 2010-07-26 16:56 surf\SubFunctions\FastHessian_BuildDerivative.m
文件 1699 2010-07-29 12:10 surf\SubFunctions\FastHessian_buildResponsela
文件 1877 2010-07-20 12:37 surf\SubFunctions\FastHessian_buildResponseMap.m
文件 2353 2010-07-30 11:43 surf\SubFunctions\FastHessian_getIpoints.m
文件 455 2010-07-26 16:56 surf\SubFunctions\FastHessian_getLaplacian.m
文件 450 2010-07-26 16:56 surf\SubFunctions\FastHessian_getResponse.m
文件 2478 2010-07-30 11:02 surf\SubFunctions\FastHessian_interpolateExtremum.m
文件 1680 2010-07-30 10:56 surf\SubFunctions\FastHessian_isExtremum.m
文件 738 2010-07-29 16:32 surf\SubFunctions\FastHessian_Responsela
文件 791 2010-07-29 10:58 surf\SubFunctions\IntegralImage_BoxIntegral.m
文件 494 2010-07-29 16:32 surf\SubFunctions\IntegralImage_HaarX.m
文件 556 2010-07-29 16:37 surf\SubFunctions\IntegralImage_HaarY.m
文件 796 2010-07-29 10:42 surf\SubFunctions\IntegralImage_IntegralImage.m
文件 1089 2010-07-30 11:39 surf\SubFunctions\PaintSURF.m
文件 1554 2010-07-30 12:39 surf\SubFunctions\SurfDesc
文件 3636 2010-07-30 12:40 surf\SubFunctions\SurfDesc
文件 2921 2010-07-30 12:07 surf\SubFunctions\SurfDesc
文件 239755 2010-09-06 12:22 surf\TestImages\lena1.png
文件 211716 2010-09-06 12:22 surf\TestImages\lena2.png
文件 5296 2010-07-19 17:38 surf\TestImages\test.png
文件 123228 2010-07-26 13:06 surf\TestImages\testc1.png
文件 122063 2010-07-26 13:06 surf\TestImages\testc2.png
文件 9721 2010-09-06 13:04 surf\WarpFunctions\affine_warp.m
目录 0 2010-09-06 10:35 surf\SubFunctions
目录 0 2010-09-06 12:42 surf\TestImages
目录 0 2010-09-06 12:57 surf\WarpFunctions
............此处省略4个文件信息
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