Converts an image to a list of regions. Tracks these regions over time. Calculates location, size velocity, extents, age. Matches regions from one frame to the next.

Inlets & Arguments:

#	Name	Arg	Description
1	image	n/a	Eyes Image, standard operator messages see: eyes messages
2	threshold 1	t,lo	Turns adaptive backgrounding on and off. 0=off 1=on.
3	threshold 2	t2,hi	Attempts to preserve the image intensity values. (Doesn't work well in practice)
4	operator	op	Number of frames used to integrate in order to obtain a background. c = (f[0] + f[1] + ... + f[n])/n. Where c is the integrated background and f[x] is a frame in time, and n is the number of frames to integrate.
5	maximum number of regions	max	Once frames are integrated, this is the percentage of that image that is integrated into the current background. Greator =1 Lower =2 Inside =3 Outside =4 NotEqual =5
6	minimum region size	mns	Minimum size of regions to track.
7	maximum region size	mxs	Maximum size of regions to track.
8	connectivity	c	Determines how regions are constructed. Specifies how neighboring pixels are grouped together to form blobs. 4 = 4-connected (left, right, top, and bottom pixels are grouped if within threshold) 8 = 8-connected (4-connected but with corner pixels included) -1 through -8 = one direction trace in one of eight directions: -1 -2 -3 -4 pix -5 -6 -7 -8 0 or any other value: use inlet 9 to determine a window around the pixel to search for like pixels to group into a blob.
9	window	w	If connectivity is 0, use this value to determine the size of an area around each pixel to find like pixels to group into blobs.
10	matching on/off	m	Turns region matching on or off. Region matching is used to match blobs from the previous frame to the current frame. Matching is based upon how close blobs are spatially. 0 = off 1 = on
11	matching window	mw	Percentage of the frame size represnting how far away matching regions can be matched.
12	region latency	l	Helps with blob matching. If a region/blob doesn't match in the current frame, it can be made to "hang around" for a little bit in case a match happens to crop up. Region latency determines how long a blob will hang around when it doesn't match any blobs in the current frame.

Outlets:

#	Name	Description
1	region marked image	Image with regions marked with id colors.
2	region sizes and locations	Size and location of each region found as a Max list of integers.
3	region list	Region list data type. Represents a list of regions and values associated with them such as size, location, velocity, etc.

Messages:

Standard messages

Accepts all messages sent to the eyes object. See eyes messages.

Argument messages

Accepts all inlet arguments as messages.

Example: