clojure2d.extra.segmentation — clojure2d 1.4.4

Segment image into parts.

Currently contains only quadtree segmentation.

*sequence-generator* clj

Sequence generator used to select pixels for decision about subdivision. Defaults to R2 low-discrepancy sequence.

segment-pixels clj

(segment-pixels p ch)

(segment-pixels p
                ch
                {:keys [min-size max-size threshold]
                 :or {min-size 4 max-size 256 threshold 15.0}})

Decompose channel ch from Pixels into square segments using quadtree decomposition.

• min-size is minimum size of segment
• max-size is maximum size
• threshold is accuracy (minimum std dev of pixel values to make decision about subdivision).

Returns lazy sequence of vectors containing [x y size] where [x y] is segment position and size is a side length.

For segmentation, sequence generator (dynamic variable *sequence-generator* is used.