清空筛选条件
清空筛选条件

Selecting an ellipse as a region of interest (ROI)

3 次查看（过去 30 天）
med-sweng
med-sweng 2014-4-4
回答： Image Analyst 2014-4-4
I used imellipse to select an ellipse as my region of interest (ROI). The issue is that the ellipse I want to select is of around 45 degrees, and, when I use imellipse, it seems it is 90 degrees either horizontally or vertically.
How can I change the orientation of the ellipse?
Thanks.

请先登录，再回答此问题。

回答（2 个）

Joseph Cheng
Joseph Cheng 2014-4-4
Image Analyst should be getting the credit for the answer but here http://www.mathworks.com/matlabcentral/answers/76788-how-to-rotate-imellipse he gives an example of rotating an ellipse outside of using imellipse.
Image Analyst
Image Analyst 2014-4-4
There is no way to interactively specify a tilted ellipse. Best way I can think of is to draw the two axes (major and minor) interactively with two calls to imline().

类别

在 Help Center 和 File Exchange 中查找有关 Interactive Control and Callbacks 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