boofcv.factory.filter.binary

Class FactoryThresholdBinary

java.lang.Object

boofcv.factory.filter.binary.FactoryThresholdBinary

public class FactoryThresholdBinary
extends java.lang.Object

Factory for creating various filters which convert an input image into a binary one

Constructor Summary

Constructors

Constructor and Description
FactoryThresholdBinary()

Method Summary

Modifier and Type	Method and Description
static <T extends ImageGray> InputToBinary<T>	globalEntropy(int minValue, int maxValue, boolean down, java.lang.Class<T> inputType)
static <T extends ImageGray> InputToBinary<T>	globalFixed(double threshold, boolean down, java.lang.Class<T> inputType)
static <T extends ImageGray> InputToBinary<T>	globalOtsu(int minValue, int maxValue, boolean down, java.lang.Class<T> inputType)
static <T extends ImageGray> InputToBinary<T>	localGaussian(int radius, double scale, boolean down, java.lang.Class<T> inputType)
static <T extends ImageGray> InputToBinary<T>	localSauvola(int radius, float k, boolean down, java.lang.Class<T> inputType)
static <T extends ImageGray> InputToBinary<T>	localSquare(int radius, double scale, boolean down, java.lang.Class<T> inputType)
static <T extends ImageGray> InputToBinary<T>	localSquareBlockMinMax(int regionWidth, double scale, boolean down, double minimumSpread, java.lang.Class<T> inputType)
static <T extends ImageGray> InputToBinary<T>	threshold(ConfigThreshold config, java.lang.Class<T> inputType) Creates threshold using a config class

Methods inherited from class java.lang.Object

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

Constructor Detail

FactoryThresholdBinary

public FactoryThresholdBinary()

Method Detail

localGaussian

public static <T extends ImageGray> InputToBinary<T> localGaussian(int radius,
                                                                   double scale,
                                                                   boolean down,
                                                                   java.lang.Class<T> inputType)

Parameters:

radius - Radius of square region.

scale - Threshold scale adjustment

down - Should it threshold up or down.

inputType - Type of input image

Returns:

Filter to binary

See Also:

GThresholdImageOps.localGaussian(ImageGray, GrayU8, int, double, boolean, ImageGray, ImageGray)

localSauvola

public static <T extends ImageGray> InputToBinary<T> localSauvola(int radius,
                                                                  float k,
                                                                  boolean down,
                                                                  java.lang.Class<T> inputType)

Parameters:

radius - Radius of local region. Try 15

k - User specified threshold adjustment factor. Must be positive. Try 0.3

down - Should it threshold up or down.

inputType - Type of input image

Returns:

Filter to binary

See Also:

GThresholdImageOps.localSauvola(ImageGray, GrayU8, int, float, boolean)

localSquare

public static <T extends ImageGray> InputToBinary<T> localSquare(int radius,
                                                                 double scale,
                                                                 boolean down,
                                                                 java.lang.Class<T> inputType)

Parameters:

radius - Radius of square region.

scale - Scale factor adjust for threshold. 1.0 means no change.

down - Should it threshold up or down.

inputType - Type of input image

Returns:

Filter to binary

See Also:

GThresholdImageOps.localSquare(ImageGray, GrayU8, int, double, boolean, ImageGray, ImageGray)

localSquareBlockMinMax

public static <T extends ImageGray> InputToBinary<T> localSquareBlockMinMax(int regionWidth,
                                                                            double scale,
                                                                            boolean down,
                                                                            double minimumSpread,
                                                                            java.lang.Class<T> inputType)

globalEntropy

public static <T extends ImageGray> InputToBinary<T> globalEntropy(int minValue,
                                                                   int maxValue,
                                                                   boolean down,
                                                                   java.lang.Class<T> inputType)

Parameters:

minValue - The minimum value of a pixel in the image. (inclusive)

maxValue - The maximum value of a pixel in the image. (inclusive)

down - Should it threshold up or down.

inputType - Type of input image

Returns:

Filter to binary

See Also:

GThresholdImageOps.computeEntropy(boofcv.struct.image.ImageGray, int, int)

globalFixed

public static <T extends ImageGray> InputToBinary<T> globalFixed(double threshold,
                                                                 boolean down,
                                                                 java.lang.Class<T> inputType)

Parameters:

threshold - threshold value.

down - If true then the inequality ≤ is used, otherwise if false then ≥ is used.

inputType - Type of input image

Returns:

Filter to binary

See Also:

GThresholdImageOps.threshold(T, boofcv.struct.image.GrayU8, double, boolean)

globalOtsu

public static <T extends ImageGray> InputToBinary<T> globalOtsu(int minValue,
                                                                int maxValue,
                                                                boolean down,
                                                                java.lang.Class<T> inputType)

Parameters:

minValue - The minimum value of a pixel in the image. (inclusive)

maxValue - The maximum value of a pixel in the image. (inclusive)

down - Should it threshold up or down.

inputType - Type of input image

Returns:

Filter to binary

See Also:

GThresholdImageOps.computeOtsu(boofcv.struct.image.ImageGray, int, int)

threshold

public static <T extends ImageGray> InputToBinary<T> threshold(ConfigThreshold config,
                                                               java.lang.Class<T> inputType)

Creates threshold using a config class

Parameters:

config - Configuration

inputType - Type of input image

Returns:

The thresholder