Thinned skeleton
Thinned skeleton, a part of algorithm transparency, is computed from binarized skeleton by eroding all ridges down to single pixel thick lines and then applying some filters. Two thinned skeletons are constructed during feature extraction, one for ridges and one for valleys. Thinned skeleton is still a 2D image. It is processed into higher level data structure in traced skeleton stage.
Key | MIME | Filename in ZIP |
---|---|---|
ridges-thinned-skeleton | application/cbor | 023-ridges-thinned-skeleton.cbor |
valleys-thinned-skeleton | application/cbor | 031-valleys-thinned-skeleton.cbor |
Visualization
Visualization of thinned skeleton was constructed from this stage's binary data with original fingerprint in the background. Visualization itself is not part of transparency data.
Format
Thinned skeleton format is identical to that of binarized image.
Example: 023-ridges-thinned-skeleton.cbor
{ "width": 388, "height": 374, "cells": [ false, false, "... skipped 145,108 items ...", false, false ] }