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
采纳的回答
Chandra Kurniawan
2012-1-25
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);
2 个评论
slama najla
2012-6-16
移动：DGM
2023-2-20
hello i try imrotate us on 2d but it change the size of the 3d image, is it normal or no
Image Analyst
2012-6-16
移动：DGM
2023-2-20
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.
更多回答（2 个）
Chandra Kurniawan
2012-1-25
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);
Walter Roberson
2012-6-16
编辑：John Kelly
2015-3-12
0 个投票
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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