Geometric diagonal of a non-squared matrix
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Hi everyone! I'm a learning matlab user and I've got a problem to solve: I need to extract a line segment from an image but it doesn't lie on the elements of the corresponding matrix. In other works, it would be like taking the main geometric diagonal of a rectangular matrix. How can I do that? Also, I wouldn't make any interpolation but just taking the closest elements to the line. Hope you can help me. Thanks!
0 Kommentare
Antworten (1)
Jonathan Sullivan
am 7 Feb. 2012
Ersilia,
Assuming your image is a 2D matrix, you could take "the rectangular main diagonal" from it by using the following code.
% M is your image % v is the "rectangular main diagonal"
[a b] = size(M);
nPix = max(a,b);
xi = linspace(1,b,nPix);
yi = linspace(1,a,nPix);
v = interp2(M,xi,yi);
Hope this helps!
0 Kommentare
Siehe auch
Kategorien
Mehr zu Image Processing Toolbox finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!