Hi,
I want an image to open and the user to draw ROI with imfreehand() until they are finished - with the co-ordinates saved into structured array - - the following code does it for 3 regions of interest - - but how can i do this until the user is finished? Would be good to have an undo button too - which not only deletes the region of interest but also deletes xy co-ordinates in the array.
Thanks!!
img = imread('myfig.jpg') imshow(img) i = 1; for i = 1:3 hFH(i) = imfreehand(); xy{i} = hFH(i).getPosition; end
NOTE:-
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You could use
img = imread('myfig.jpg') imshow(img) i = 1; finished = 'NO'; i = 1; while strcmpi(finished,'NO') hFH(i) = imfreehand(); finished = questdlg('Finished?', ... 'confirmation', ... 'YES', 'NO', 'UNDO', 'NO'); if strcmpi(finished, 'UNDO') delete(hFH(i)) finished = 'NO'; else xy{i} = hFH(i).getPosition; i = i + 1; end end
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