12 Feb 2021

Efficient Graph-based 2D Image Segmentation

This Xtra implements efficient graph-based image segmentation by Felzenszwalb and Huttenlocher.

2021-01-15 12_39_25-Amira - GraphBasedSegmentation_volumescope.hx

This Xtra implements efficient graph-based image segmentation by Felzenszwalb and Huttenlocher [1].

The new GraphBasedSegmentation module is stored in the category Xtra>Image Processing. It performs 2D, XY slice-by-slice  segmentation of the input grayscale image. You can use this form of segmentation to perform over-segmentation of grayscale images.

The project included in this Xtra demonstrates quick partitioning and labeling of a VolumeScope SEM image of a mouse brain to isolate objects that are circular or elliptical and that have relatively higher brightness compared to the other objects in the scene.

[1] Felzenszwalb, Pedro F., and Daniel P. Huttenlocher. "Efficient graph-based image segmentation." International Journal of Computer Vision (IJCV), 2004.

Download a version compatible with Amira-Avizo 2020.2 HERE, 2020.3 HERE, 2021.1 HERE, 2022.1 HERE, 2022.2 HERE, 2023.1 HERE.