Trial software

How to find Concavity or Convexity part in an Image?

7 views (last 30 days)

Show older comments

Sabarinathan Vadivelu on 11 Dec 2012

0
Link

Direct link to this question

https://www.mathworks.com/matlabcentral/answers/56276-how-to-find-concavity-or-convexity-part-in-an-image

Accepted Answer: Theo Walker

If this was my input Image, How to find that red dot position? Is there any procedures or algorithms??

0 Comments
Show -2 older commentsHide -2 older comments

Sign in to comment.

Sign in to answer this question.

Accepted Answer

Theo Walker on 8 Jun 2013

0
Link

Direct link to this answer

https://www.mathworks.com/matlabcentral/answers/56276-how-to-find-concavity-or-convexity-part-in-an-image#answer_88127

One easy way would be to dilate the image, then erode the image. Take the result, and subtract your original image from it.

0 Comments
Show -2 older commentsHide -2 older comments

Sign in to comment.

More Answers (1)

Image Analyst on 8 Jun 2013

1
Link

Direct link to this answer

https://www.mathworks.com/matlabcentral/answers/56276-how-to-find-concavity-or-convexity-part-in-an-image#answer_88141

Use bwboundaries, then see the FAQ: http://matlab.wikia.com/wiki/FAQ#How_do_I_find_.22kinks.22_in_a_curve.3F

0 Comments
Show -2 older commentsHide -2 older comments

Sign in to comment.

Sign in to answer this question.

Categories

Image Processing and Computer Vision Image Processing Toolbox Image Filtering and Enhancement Image Arithmetic

Find more on Image Arithmetic in Help Center and File Exchange

Tags

Products

Image Processing Toolbox

Community Treasure Hunt

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

Trial software