how to represent 30, 60, and 45 degree on matrix in Matlab?

14 次查看（过去 30 天）
Prerna Surbhi
Prerna Surbhi 2016-5-5
回答： CS Researcher 2016-5-5
i want to represent 30 degree,60 degree and 90 degree on matlab? just like 45 degree is represented as
[-1,-1,2;-1,2,-1;2,-1,-1]
  3 个评论
显示 1更早的评论
Prerna Surbhi
Prerna Surbhi 2016-5-5
i want to implement 30,60 and 90 degree line detection in an image,just like 45 degree line detection can be done by using [-1 -1 2;-1 2 -1;2 -1 -1];
Walter Roberson
Walter Roberson 2016-5-5
How is that matrix being used? Is it, for example, the mask being used for conv2() ?

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

CS Researcher
CS Researcher 2016-5-5
You should always give out as much information related to your question as you can. Help us to help you. I did not completely understand what you mean by representing angles in MATLAB. It is extremely vague. Do you mean rotation matrix? If yes, then it is given by (for a 3 x 3 case)
R = [ 1 0 0
0 cos(theta) sin(theta)
0 -sin(theta) cos(theta)]
The theta is in radians. How did you get the matrix that you have for 45 degrees?

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Color Segmentation 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