dsegen

A hierarchical image segmentation is a set of several image segmentations at different levels of segmentation detail in which the segmentations at
coarser levels of detail can be produced from simple merges of regions from segmentations at finer levels of detail.
A unique feature of hierarchical image segmentation is the the segmented region boundaries are maintained at the full image spatial resolution at all
levels of segmentation detail in the hierarchy.
Maintaining region boundaries at full image spatial resolution avoids compounding the "mixed pixel" problem which adversely impacts other
multiresolution segmentation schemes in which the coarser resolution segmentations are produced from spatially degraded versions of the imagery data.