How does detectCheckerboardPoints work?

5 次查看（过去 30 天）
Jdeen
Jdeen 2015-7-28
评论： Image Analyst 2019-9-26
Hi!
I am wondering how the function "detectCheckerboardPoints" works. What prerequisites are there for the image I? What algorithm is behind the function? E.g., does it rely on a harris corner detector? Does it explicitly look for quadrilaterals? Why doesn't it work for this image, for example?

请先登录，再回答此问题。

回答（1 个）

Image Analyst
Image Analyst 2015-7-28
Probably because it's such a poor quality image. You might have to do some preprocessing first to get rid of the noise and posterization, and of course better image capture environment (lighting, geometry, etc.).
  4 个评论
显示 2更早的评论
Jonathan Rudd
Jonathan Rudd 2019-9-26
Why answer when you don't know and don't have the toolkit.
Image Analyst
Image Analyst 2019-9-26
Because if it's important enough for him, he might buy the toolbox. Why would I not refer him to an answer just because I personally don't have the toolbox that has a function I know would help him? Why should I withhold such potentially valuable and helpful information? (By the way, I have the toolbox now.)

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Geometric Transformation and Image Registration 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by