how display a array of image using a for loop
7 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
i have stored 10 images in a array im=[im1,im2......],bt when i try to display it, it is not getting displaying i.e for i=1:10 figure, imshow(im(i)) plz can anyone help in figure out this problem
0 comentarios
Respuestas (1)
Image Analyst
el 14 de Abr. de 2012
You're using linear indexing, which in effect only shows the first pixel of each image plane. If your images are grayscale images in a 3D array, you can do this:
for slice = 1 : size(im, 3)
imshow(im(:,:,slice), []);
drawnow;
pause(0.5); % Wait 1/2 second to show each one.
end
The colon means " all rows" or " all columns" so I'm taking all rows and all columns of each slice and displaying that entire slice.
2 comentarios
Image Analyst
el 14 de Abr. de 2012
Editada: Walter Roberson
el 10 de Ag. de 2012
Since eyes will be so different from one person the the next, I think it would be hard to compare images directly, for example through subtraction. I think you'd be better off analyzing each image and getting a feature vector of things, like "pupil present", "skin area fraction", "iris detected", etc. You should study up here to get some idea of how people do eye detection/tracking: http://iris.usc.edu/Vision-Notes/bibliography/contentspeople.html#Face%20Recognition,%20Detection,%20Tracking,%20Gesture%20Recognition,%20Fingerprints,%20Biometrics
Ver también
Categorías
Más información sobre Loops and Conditional Statements en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!