[scikit-image] Using EllipseModel

[Stefan van der Walt]

It may well be that those two functions use opposite directions for
theta.  Do you mind filing an issue?
Thanks
Stéfan

On Fri, Apr 28, 2017, at 11:02, Surya Kasturi wrote:
> Hi,
> 
> I’m trying to use skimage.measure.EllipseModel to estimate an ellipse
> around a contour. The results seems to be not so satisfying. I am
> wondering if I am using “orientation” parameter correctly.> 
> Could anyone please let me know whether “theta” is in radians or
> degrees? / I am doing anything wrong?> 
> from skimage.measure import EllipseModel
> 
> # create ellipse model
> ellipse = EllipseModel()
> ellipse.estimate(*cnt*)
> 
> xc, yc, a, b, theta = np.array(ellipse.params, dtype=int)
> 
> # find perimeter
> rr, cc = draw.ellipse_perimeter(xc, yc, a, b, *orientation=theta)*
> 
> # plot
> ax.scatter(cc, rr, s=5, label="EllipseModel”)
> 
> 
>  
> 
> 
> Thank you,
> Surya
>  
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