i was trying to use detectSURFFeatures function i got following error Function 'subsindex' is not defined for values of class 'SURFPoints'.

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Abhishek Yadav
Abhishek Yadav 2016-2-19
编辑： Walter Roberson 2016-2-19
this is the code i used
j=rgb2gray(imread('stone.tiff'));
points = detectSURFFeatures(j);
imshow(j); hold on;
plot(points.selectStrongest(10));
  1 个评论
Matthew Eicholtz
Matthew Eicholtz 2016-2-19
I'm having trouble reproducing your error. I do not have 'stone.tiff' on my machine, but when I run the code
I = imread('board.tif'); %board.tif is a built-in image
J = rgb2gray(I);
points = detectSURFFeatures(J);
figure; imshow(J);
hold on;
plot(points.selectStrongest(10));
it works fine for me.

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回答（1 个）

Steven Lord
Steven Lord 2016-2-19
Delete the variable named plot that you created earlier in your code and if necessary modify your code so it doesn't create such a variable in future runs.

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