How can I detect line lies between two certain regions?
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
faten Ahmed
le 17 Mar 2020
Commenté : Image Analyst
le 18 Mar 2020
I have matrix I and I want to detect and coloring the line ( or thin region) which has DN (4) and located between the region which has DN (0) and the region which has DN (3).
I =
0 0 0 0 4 4 3 3
0 0 0 4 4 3 3 2
0 0 4 4 3 2 2 2
0 4 4 3 3 2 2 3
0 commentaires
Réponse acceptée
Image Analyst
le 17 Mar 2020
Simply use
coloredLabels = label2rgb (I, 'hsv', 'k', 'shuffle'); % pseudo random color labels
Here is a full demo:
I =[...
0 0 0 0 4 4 3 3
0 0 0 4 4 3 3 2
0 0 4 4 3 2 2 2
0 4 4 3 3 2 2 3]
hFig = figure;
subplot(2, 1, 1);
imshow(I, [], 'InitialMagnification', 1600);
fontSize = 16;
title('I', 'FontSize', fontSize);
% colorize the matrix
coloredLabels = label2rgb (I, 'hsv', 'k', 'shuffle'); % pseudo random color labels
% coloredLabels is an RGB image. We could have applied a colormap instead.
subplot(2, 1, 2);
imshow(coloredLabels, 'InitialMagnification', 1600);
axis('on', 'image'); % Make sure image is not artificially stretched because of screen's aspect ratio.
title('Colorized I', 'FontSize', fontSize);
hp = impixelinfo; % Show color as use mouses around over image.
4 commentaires
Image Analyst
le 18 Mar 2020
Take the 3 region and the 0 region and dilate one of them and then AND them. Something like (untested)
region3 = imdilate(labeledImage == 3, true(3));
borderImage = region3 & (labeledImage == 0);
imshow(borderImage, []);
Plus de réponses (1)
Voir également
Catégories
En savoir plus sur Image Processing Toolbox dans Help Center et File Exchange
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!