surf算法-MATLAB源码

surf算法的MATLAB源码

% 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）*2 size（I13）]）;
  I（:1:size（I12）:）=I1; I（:size（I12）+1:size（I12）+size（I22）:）=I2;
  figure imshow（I/255）; hold on;
% Show the best matches
  for i=1:30
      c=rand（13）;
      plot（[Ipts1（cor1（i））.x Ipts2（cor2（i））.x+size（I12）][Ipts1（cor1（i））.y Ipts2（cor2（i））.y]‘-‘‘Color‘c）
      plot（[Ipts1（cor1（i））.x Ipts2（cor2（i））.x+size（I12）][Ipts1（cor1（i））.y Ipts2（cor2（i））.y]‘o‘‘Color‘c）
  end

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2017-03-24 09:50  SURF\
     文件        1211  2010-09-07 00:26  SURF\example2.m
     文件        1776  2010-09-07 01:00  SURF\example3.m
     文件        1335  2010-09-06 19:21  SURF\license.txt
     文件        3778  2010-09-07 00:27  SURF\OpenSurf.m
     目录           0  2010-09-06 22:35  SURF\SubFunctions\
     文件         603  2010-07-27 04:56  SURF\SubFunctions\FastHessian_BuildDerivative.m
     文件        1699  2010-07-30 00:10  SURF\SubFunctions\FastHessian_buildResponselayer.m
     文件        1877  2010-07-21 00:37  SURF\SubFunctions\FastHessian_buildResponseMap.m
     文件        2353  2010-07-30 23:43  SURF\SubFunctions\FastHessian_getIpoints.m
     文件         455  2010-07-27 04:56  SURF\SubFunctions\FastHessian_getLaplacian.m
     文件         450  2010-07-27 04:56  SURF\SubFunctions\FastHessian_getResponse.m
     文件        2478  2010-07-30 23:02  SURF\SubFunctions\FastHessian_interpolateExtremum.m
     文件        1680  2010-07-30 22:56  SURF\SubFunctions\FastHessian_isExtremum.m
     文件         738  2010-07-30 04:32  SURF\SubFunctions\FastHessian_Responselayer.m
     文件         791  2010-07-29 22:58  SURF\SubFunctions\IntegralImage_BoxIntegral.m
     文件         494  2010-07-30 04:32  SURF\SubFunctions\IntegralImage_HaarX.m
     文件         556  2010-07-30 04:37  SURF\SubFunctions\IntegralImage_HaarY.m
     文件         796  2010-07-29 22:42  SURF\SubFunctions\IntegralImage_IntegralImage.m
     文件        1089  2010-07-30 23:39  SURF\SubFunctions\PaintSURF.m
     文件        1554  2010-07-31 00:39  SURF\SubFunctions\SurfDescriptor_DecribeInterestPoints.m
     文件        3636  2010-07-31 00:40  SURF\SubFunctions\SurfDescriptor_GetDescriptor.m
     文件        2921  2010-07-31 00:07  SURF\SubFunctions\SurfDescriptor_GetOrientation.m
     目录           0  2010-09-07 00:42  SURF\TestImages\
     文件      239755  2010-09-07 00:22  SURF\TestImages\lena1.png
     文件      211716  2010-09-07 00:22  SURF\TestImages\lena2.png
     文件        5296  2010-07-20 05:38  SURF\TestImages\test.png
     文件      123228  2010-07-27 01:06  SURF\TestImages\testc1.png
     文件      122063  2010-07-27 01:06  SURF\TestImages\testc2.png
     目录           0  2010-09-07 00:57  SURF\WarpFunctions\
     文件        9721  2010-09-07 01:04  SURF\WarpFunctions\affine_warp.m
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