rotate a tif image
조회 수: 3 (최근 30일)
이전 댓글 표시
I have a tif image which I need to rotate by an angle theta keeping the cg and coordinate axes constant.(i have attached my .tif image). In the example given below, i have rotated the image by 45 degree anticlockwise but it is getting distorted and the cg is also moving. Any help is appreciated.
to
댓글 수: 8
Jan
2018년 2월 7일
@Busy Bee: Really? You have the coordinates of the vertices? (By the way: coordinates are not "known around a centroid") And you want to attach a TIF file? Why not providing the positions as code?
채택된 답변
Guillaume
2018년 2월 7일
편집: Guillaume
2018년 2월 8일
"Rotating the polygon whose vertices are known around its centroid."
Not sure why a tif image was mentioned then.
Assuming you're on R2017b or later:
polygon = polyshape(vertices); %vertices is a Nx2 matrix of points
[centroidx, centroidy] = centroid(polygon);
rotated_polygon = rotate(polygon, angle, [centroidx centroidy]);
plot([polygon rotated_polygon])
댓글 수: 0
추가 답변 (0개)
참고 항목
제품
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!