Longitudinal Cut View at Certain Angle
3 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Hi
I'm a beginner in Image processing . I have a Multi frame Image with consist of 271 frames . i want to cut this image at certain angle (like 45 deg) to get its longitudinal view . I have the upper part of the image and want to get lower view . But i'm not able to get this . here i have attached the code . can anyone please help me in this
for frame=1:271
[mri(:,:,:,frame),map] = imread('image.tif',frame);
end
for slice = 1: 271
angle = 45;
xcentre = floor(size(Image, 2) / 2);
ycentre = floor(size(Image, 1) / 2);
xtop = xcentre + ycentre / tan(angle);
yright = ycentre - (size(Image, 2) - xcentre) * tan(angle);
xbottom = xcentre - (size(Image, 1) - ycentre) / tan(angle);
yleft = ycentre + xcentre * tan(angle);
if xtop < 0 || xtop > size(Image, 2)
x = [1, size(Image, 2)];
y = [yright, yleft];
else
x = [xbottom, xtop];
y = [size(Image, 1), 1];
end
% x = [1, size( mri(:,:,:,slice), 2)];
% y = [1, size( mri(:,:,:,slice), 1)];
[linex, liney, ~] = improfile(mri(:, :,:, slice), x, y);
sliceimage = mri(sub2ind(size(mri), ...
repmat(round(liney), 1, size(mri, 3)), ...
repmat(round(linex), 1, size(mri, 3)), ...
repmat(1:size(mri, 3), numel(linex), 1)));
if slice == 1
image3D = sliceimage;
else
image3D = cat(2, image3D, sliceimage);
end
end
image(image3D);
colormap(gray(256))
0 Kommentare
Antworten (2)
Yuvaraj Venkataswamy
am 3 Mai 2018
Check below link.
https://in.mathworks.com/matlabcentral/answers/210394-how-to-divide-an-image-diagonally-into-two-part
Jun Tan
am 13 Mai 2018
You can use "imrotate" on each slice then obtain the longitudinal cut view along the central axis without worrying about interpolation.
0 Kommentare
Siehe auch
Kategorien
Mehr zu Read, Write, and Modify Image finden Sie in Help Center und File Exchange
Produkte
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!