finding a region of interest

1 view (last 30 days)
Hi, I have an grayscale image matrix (basicly a 0,1 matrix). I am "drawing" a binary image using rectangle(). ( using a for loop on the matrix to identify the color and draw a each rectangle). (i know i can use imshow and enter a matrix there is a reason why im not using it). so far it works fine what i want to do next is select a region (say rectangular or circular). i want to know which of the rectangles the region is covering. is there a way to do this ? thanks

Accepted Answer

Image Analyst
Image Analyst on 6 Nov 2012
See code in my comment here http://www.mathworks.com/matlabcentral/answers/52570#comment_108924 to find out if rectangles overlap.
  3 Comments
Itzik Ben Shabat
Itzik Ben Shabat on 7 Nov 2012
found it myself. with getPosition(imrect()) should do the trick. thanks
Image Analyst
Image Analyst on 7 Nov 2012
Oh, I thought you already knew the rectangle because you said you were drawing it with rectangle(), which requires you to know the coordinates already. If you don't know them, you can use imrect(), or rbbox().

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!