Blobs2D

final case

class Blobs2D(in: GE, width: GE, height: GE, thresh: GE, pad: GE) extends MultiOut

A blob detection UGen. It is based on the meta-balls algorithm by Julien Gachadoat (http://www.v3ga.net/processing/BlobDetection/).

Currently, we output four channels:

0 - numBlobs - flushes for each window one element with the number of blobs detected
1 - bounds - quadruplets of xMin, xMax, yMin, yMax - for each blob
2 - numVertices - the number of vertices (contour coordinates) for each blob
3 - vertices - tuples of x and y for the vertices of each blob

Value Params

height: the height of the image
in: the image(s) to analyse
pad: size of "border" to put around input matrices. If greater than zero, a border of that size is created internally, filled with the threshold value
thresh: the threshold for blob detection between zero and one
width: the width of the image

Companion