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

this is the code i used

j=rgb2gray(imread('stone.tiff'));
points = detectSURFFeatures(j);
imshow(j); hold on;
plot(points.selectStrongest(10));

[Matthew Eicholtz]

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.

Answer 1

[Steven Lord]

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.