How to connect non-continuous boundary and fill the object in binary image
조회 수: 1 (최근 30일)
이전 댓글 표시
채택된 답변
KSSV
2019년 3월 1일
편집: KSSV
2019년 3월 1일
An vague attempt....it can be further refined or a more legant solution would be possible.
I = imread('m.png') ;
I1 = rgb2gray(I) ;
I1 = imcrop(I1) ;
[y,x] = find(I1) ;
imshow(I1) ;
hold on
% plot(x,y,'.r')
[nx,ny] = size(I1) ;
P1 = [x(x<=nx/2) y(x<=nx/2)] ;
P2 = [x(x>nx/2) y(x>nx/2)] ;
P = P1'; % coordinates / points
c = mean(P,2); % mean/ central point
d = P-c ; % vectors connecting the central point and the given points
th = atan2(d(2,:),d(1,:)); % angle above x axis
[th, idx] = sort(th); % sorting the angles
P = P(:,idx); % sorting the given points
P = [P P(:,1)]; % add the first at the end to close the polygon
plot( P(1,:), P(2,:), 'r');
P = P2'; % coordinates / points
c = mean(P,2); % mean/ central point
d = P-c ; % vectors connecting the central point and the given points
th = atan2(d(2,:),d(1,:)); % angle above x axis
[th, idx] = sort(th); % sorting the angles
P = P(:,idx); % sorting the given points
P = [P P(:,1)]; % add the first at the end to close the polygon
plot( P(1,:), P(2,:), 'b');
댓글 수: 3
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Read, Write, and Modify Image에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!