It's using imellipse that does the job for 5 region, but only the last region is displayed. How to do for each region save to array, for each array draw it out, then for each object in array draw it out. Thanks

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Mei Synn Tan 2017-1-24

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/321693-it-s-using-imellipse-that-does-the-job-for-5-region-but-only-the-last-region-is-displayed-how-to-d

评论： KSSV 2017-1-24

N = 5 ;
I = imread('13170.jpg');
im = imshow(I);
for i = 1:N
e = imellipse(gca);% now pick ROI
setColor(e, 'red');
position = wait(e);
    BW = createMask(e,im);% get BW mask for that ROI
    BW(:,:,2) = BW;
    BW(:,:,3) = BW(:,:,1);
    ROI = I;
    ROI(BW == 0) = 255;
end
figure(i)
imshow(ROI,'Border','tight');

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Answer 1

KSSV 2017-1-24

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/321693-it-s-using-imellipse-that-does-the-job-for-5-region-but-only-the-last-region-is-displayed-how-to-d#answer_251776

在 MATLAB Online 中打开

clc; clear all;
N = 5 ;
I = imread('junk.jpg');
iwant = cell(N,1) ;
for i = 1:N
    im = imshow(I);
    e = imellipse(gca);% now pick ROI
    setColor(e, 'red');
    % position = wait(e);
    BW = createMask(e,im);% get BW mask for that ROI
    BW(:,:,2) = BW;
    BW(:,:,3) = BW(:,:,1);
    ROI = I;
    ROI(BW == 0) = 255;
    iwant{i} = ROI ;
end
for i = 1:N
    figure
    imshow(iwant{i},'Border','tight');
end