3D roataion of image (jpg image)
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Dear All,
How can I rotate in 3D the jpg image in Matlab. The imrotate does it only in 2D? I found the rotate function and 3D rotate, but I don't know could I use these 2 functions for this problem! Thank You in advance!
Laslo
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채택된 답변
Chandra Kurniawan
2012년 1월 25일
Hi,
in Matlab R20011a, I don't face any problem with imrotate to rotate 3D image
I = imread('football.jpg'); %3D image
J = imrotate(I,30);
imshow(J);
But, you also can rotate it by :
I = imread('football.jpg'); %3D image
s = 30;
J(:,:,1) = imrotate(I(:,:,1),s);
J(:,:,2) = imrotate(I(:,:,2),s);
J(:,:,3) = imrotate(I(:,:,3),s);
imshow(J);
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slama najla
2012년 6월 16일
이동: DGM
2023년 2월 20일
hello i try imrotate us on 2d but it change the size of the 3d image, is it normal or no
Image Analyst
2012년 6월 16일
이동: DGM
2023년 2월 20일
If you didn't clip the rotated image to the canvass, but instead enlarged the canvass, it might appear to be shrunk because it may fit the enlarged canvass into the same display area.
추가 답변 (2개)
Chandra Kurniawan
2012년 1월 25일
Hi, I have read your message to my email.
I see your problem.
Imrotate cannot rotate an image in z - direction.
Please try imtransform instead.
Maybe this helps.
Eq:
I = imread('football.jpg');
Dorig = [0 0; 1 0; 1 1; 0 1];
Dtrans = [-4 2; -8 -3; -3 -5; 6 3];
tform = maketform('projective',Dorig,Dtrans);
B = imtransform(I,tform,'udata',[0 1],'vdata',[0 1],'size',size(I));
imshow(B);
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Walter Roberson
2012년 6월 16일
편집: John Kelly
2015년 3월 12일
If you want to be able to rotate an image dynamically, then you need to create it as a texture map.
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