surf算法的matlab代码

实现surf算法的matlab代码

% 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
----------- ---------  ---------- -----  ----
     文件        1211  2020-09-23 15:36  surf\example2.m
     文件        1768  2020-09-23 15:36  surf\example3.m
     文件        3778  2020-09-23 15:36  surf\surf.m
     文件         603  2020-09-23 15:36  surf\SubFunctions\FastHessian_BuildDerivative.m
     文件        1699  2020-09-23 15:36  surf\SubFunctions\FastHessian_buildResponselayer.m
     文件        1877  2020-09-23 15:36  surf\SubFunctions\FastHessian_buildResponseMap.m
     文件        2353  2020-09-23 15:36  surf\SubFunctions\FastHessian_getIpoints.m
     文件         455  2020-09-23 15:36  surf\SubFunctions\FastHessian_getLaplacian.m
     文件         450  2020-09-23 15:36  surf\SubFunctions\FastHessian_getResponse.m
     文件        2478  2020-09-23 15:36  surf\SubFunctions\FastHessian_interpolateExtremum.m
     文件        1680  2020-09-23 15:36  surf\SubFunctions\FastHessian_isExtremum.m
     文件         738  2020-09-23 15:36  surf\SubFunctions\FastHessian_Responselayer.m
     文件         791  2020-09-23 15:36  surf\SubFunctions\IntegralImage_BoxIntegral.m
     文件         494  2020-09-23 15:36  surf\SubFunctions\IntegralImage_HaarX.m
     文件         556  2020-09-23 15:36  surf\SubFunctions\IntegralImage_HaarY.m
     文件         796  2020-09-23 15:36  surf\SubFunctions\IntegralImage_IntegralImage.m
     文件        1089  2020-09-23 15:36  surf\SubFunctions\PaintSURF.m
     文件        1554  2020-09-23 15:36  surf\SubFunctions\SurfDescriptor_DecribeInterestPoints.m
     文件        3636  2020-09-23 15:36  surf\SubFunctions\SurfDescriptor_GetDescriptor.m
     文件        2921  2020-09-23 15:36  surf\SubFunctions\SurfDescriptor_GetOrientation.m
     文件      239755  2020-09-23 15:36  surf\TestImages\lena1.png
     文件      211716  2020-09-23 15:36  surf\TestImages\lena2.png
     文件        5296  2020-09-23 15:36  surf\TestImages\test.png
     文件      123228  2020-09-23 15:36  surf\TestImages\testc1.png
     文件      122063  2020-09-23 15:36  surf\TestImages\testc2.png
     文件        9721  2020-09-23 15:36  surf\WarpFunctions\affine_warp.m