Implementation of the skeletonisation of the prediction - to be used for centre line DSC

[csudre]

Is your feature request related to a problem? Please describe.
Need for a transform that calculates the skeleton / centre line of a binarised prediction. This is needed to be able to derive the centre line Dice score as evaluation metric

Describe the solution you'd like
Add a possible post processing transform of a binary input tensor and outputs the binary skeleton of this input (for both reference and prediction)
See skimage solution

[vikashg]

quite narrow in scope. closing because of inactivity.