solidity concept in labeled components

14 次查看（过去 30 天）
Sehrish
Sehrish 2012-8-14
评论： Image Analyst 2017-5-7
can anyone tell me the solidity concept in simple words?

请先登录，再回答此问题。

回答（2 个）

Image Analyst
Image Analyst 2012-8-14
Solidity is area fraction of the region as compared to its convex hull. The convex hull is what you'd get if you wrapped a rubber band around your region. So solidity is what fraction of the actual area your region is. For any convex object it's 1. An asterisk might have a solidity of around 0.5, while a thin "L" shape (or T or E, etc.)would have a very low solidity. The more bays, nooks, and crannies it has, the lower the solidity.
  2 个评论
Nurzamal Islam
Nurzamal Islam 2017-5-7
can you please explain the solidity taking any image as an example?
Image Analyst
Image Analyst 2017-5-7
I don't know how to explain it any better than what I already did above. It's the ratio of the actual blob area to the convex hull (rubber band) area. What is not understandable about that?

请先登录，再进行评论。

Sean de Wolski
Sean de Wolski 2012-8-14
编辑：Sean de Wolski 2012-8-14
Solidity: Area / Convex Hull Area
A rectangle will have a solidity of 1 because it is convex and thus its area is the convex area. A pacman will have a solidity of a little more than 0.75 since its area is about 3/4 of the almost circle that is its convex hull.
http://www.pacmangame.net/pacman-chart.gif
Note the convex hull would not include the circle segment between the top and bottom of its mouth

类别

在 Help Center 和 File Exchange 中查找有关 Bounding Regions 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by