Skimage - Getting the transformation from Geometric transformation object

[Shrawan Kumar Mageswaran]

Dear Skimage users/developers,

I am trying to retrieve and store transformation parameters as a matrix after estimating them using the "skimage.transform.estimate_transform('Affine',src,dst)" method. I understand that the output of "skimage.transform.estimate_transform('Affine',src,dst)" is not a transformation matrix by itself (I do not know what the properties of such a transform object are and I would like to know more) and I would like to calculate the matrix from such an object. I would greatly appreciate your help on this issue. Thank you.

Best,
Shrawan

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Shrawan Kumar Mageswaran
Post-doc
Jensen Lab
California Institute of Technology

[Stéfan van der Walt]

Hi Shrawan

On Fri, 27 May 2016 at 12:33 Shrawan Kumar Mageswaran <m.shraw...@gmail.com> wrote:

I am trying to retrieve and store transformation parameters as a matrix after estimating them using the "skimage.transform.estimate_transform('Affine',src,dst)" method. I understand that the output of "skimage.transform.estimate_transform('Affine',src,dst)" is not a transformation matrix by itself (I do not know what the properties of such a transform object are and I would like to know more) and I would like to calculate the matrix from such an object. I would greatly appreciate your help on this issue. Thank you.

Take a look at the source here:

https://github.com/scikit-image/scikit-image/blob/master/skimage/transform/_geometric.py#L345

You are looking for the `params` attribute.

Stéfan

[Shrawan]

Thanks a ton, Dr. Walt!

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Shrawan Kumar Mageswaran

Postdoctoral Scholar