How to create multiple ROI in the same figure? I'd like to manually draw multiple region on an image to create a mask of the drawn regions. I attached the code to do it using ellipse that does the job for 5 region, but only last region is displayed.
조회 수: 23 (최근 30일)
이전 댓글 표시
I = imread('13170.jpg');
im = imshow(I);
e = imellipse(gca);% now pick ROI
BW = createMask(e,im);% get BW mask for that ROI
BW(:,:,2) = BW;
BW(:,:,3) = BW(:,:,1);
ROI = I;
ROI(BW == 0) = 255;
figure, imshow(ROI,'Border','tight');
댓글 수: 0
채택된 답변
KSSV
2017년 1월 24일
편집: KSSV
2017년 1월 24일
You put a loop and call the code the number of times you want. Just call it multiple times and save all the regions.
Refer this file exchange, may be useful: https://in.mathworks.com/matlabcentral/fileexchange/31388-multi-roi-mask-editor-class
댓글 수: 5
KSSV
2017년 1월 24일
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
Meera chandran
2018년 8월 31일
Any Idea on how to draw multiple ROI's in 2 images which are place in 'montage' mode and obtain their feature points?
I am getting only one ROI point safter drawing it
추가 답변 (0개)
참고 항목
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!