How to create a bounding box for multiple objects of interest
12 views (last 30 days)
Show older comments
Hello Everyone,
I'm working on a project where my goal is to detect and recognize playing cards, and I'm having trouble creating bounding boxes and extracting them to compare against a template image. For right now, I'm just trying to create a bounding box for three separate cards in an image, although ideally I'd like to for just the corners of the cards. But while creating the bounding boxes I can only get it to work with one of the three cards in my image. I'll supply my code and image, and if anyone could help me any I would greatly appreciate it. For right now it is only working with the first card.
Ryan
*HERE IS MY CODE***** this is working to create the bounding box for one card. How can I for all three cards? %J is a binary image that's already been processed and using the canny edge detector.
J = Edge;
%For TEST IMAGE
imshow(J)
[B,L] = bwboundaries(J, 'noholes');
figure; imshow(J); hold on;
for k = 1;length(B),
boundary = B{k};
plot(boundary(:,2),boundary(:,1),'g','LineWidth',2);
end
0 Comments
Accepted Answer
Walter Roberson
on 5 Oct 2015
for k = 1;length(B), needs ":" instead of ";"
for k = 1:length(B)
8 Comments
More Answers (0)
See Also
Categories
Find more on Image Segmentation and Analysis in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!