From XY array data in pixels to BW image
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Alejandro Fernández
am 18 Nov. 2020
Kommentiert: Alejandro Fernández
am 18 Nov. 2020
Hi, I have a XY array matrix called A , the first column are the X values (column of the image) and the second Y values (rows of the image) and I need to create a BW image in which the points of the A matrix get color white in the image.
As an example, the A data could be:
A = randi(20,[10 2])
And the image size should be , is that correct?
A = randi(20,[10 2]);
idx = sub2ind([20 20],A(:,2),A(:,1));
BW = false(20,20);
BW(idx) = true;
0 Kommentare
Akzeptierte Antwort
Ameer Hamza
am 18 Nov. 2020
Bearbeitet: Ameer Hamza
am 18 Nov. 2020
A little mistake in the calculation of idx
idx = sub2ind([20 20],A(:,2),A(:,1)); % Last input shoule be A(:,1)
Rest is correct.
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Matrix Indexing 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!