boofcv.alg.segmentation.ms

Class MergeSmallRegions<T extends ImageBase>

java.lang.Object

boofcv.alg.segmentation.ms.RegionMergeTree

boofcv.alg.segmentation.ms.MergeSmallRegions<T>

public class MergeSmallRegions<T extends ImageBase>
extends RegionMergeTree

Finds regions which are too small and merges them with a neighbor that is the most similar to it and connected. The process is repeated until there are no more regions below the size threshold. How similar two neighbors are is determined using each region's average color. Connectivity is determined using a 4-connect rule.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MergeSmallRegions.Node Node in a graph.

Constructor Summary

Constructors

Constructor and Description
MergeSmallRegions(int minimumSize, ConnectRule rule, ComputeRegionMeanColor<T> computeColor) Constructor

Method Summary

Modifier and Type	Method and Description
void	process(T image, GrayS32 pixelToRegion, GrowQueue_I32 regionMemberCount, FastQueue<float[]> regionColor) Merges together smaller regions.
void	setMinimumSize(int minimumSize)

Methods inherited from class boofcv.alg.segmentation.ms.RegionMergeTree

initializeMerge, performMerge

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MergeSmallRegions

public MergeSmallRegions(int minimumSize,
                         ConnectRule rule,
                         ComputeRegionMeanColor<T> computeColor)

Constructor

Parameters:

minimumSize - Minimum number of pixels a region must have for it to not be pruned.

computeColor - Computes the color of each region

Method Detail

setMinimumSize

public void setMinimumSize(int minimumSize)

process

public void process(T image,
                    GrayS32 pixelToRegion,
                    GrowQueue_I32 regionMemberCount,
                    FastQueue<float[]> regionColor)

Merges together smaller regions. Segmented image, region member count, and region color are all updated.

Parameters:

image - Input image. Used to compute color of each region

pixelToRegion - (input/output) Segmented image with the ID of each region. Modified.

regionMemberCount - (input/output) Number of members in each region Modified.

regionColor - (Output) Storage for colors of each region. Will contains the color of each region on output.