Package qupath.opencv.ops

Class ImageOps.Filters

java.lang.Object

qupath.opencv.ops.ImageOps.Filters

Enclosing class:

ImageOps

public static class ImageOps.Filters
extends Object

Filtering operations.

Constructor Summary

Constructors

Constructor	Description
Filters()

Method Summary

Modifier and Type	Method	Description
static ImageOp	closing(int radius)	Apply a 2D morphological closing filter.
static ImageOp	features(Collection<MultiscaleFeatures.MultiscaleFeature> features, double sigmaX, double sigmaY)	Compute one or more MultiscaleFeatures.MultiscaleFeatures for the specified smoothing values (must be > 0).
static ImageOp	filter2D(Mat kernel)	Apply a 2D filter.
static ImageOp	gaussianBlur(double sigma)	Apply a 2D Gaussian filter.
static ImageOp	gaussianBlur(double sigmaX, double sigmaY)	Apply a (possibly anisotropic) 2D Gaussian filter.
static ImageOp	maximum(int radius)	Apply a 2D maximum filter.
static ImageOp	mean(int radius)	Apply a 2D circular mean filter.
static ImageOp	median(int radius)	Apply a 2D median filter
static ImageOp	minimum(int radius)	Apply a 2D minimum filter.
static ImageOp	opening(int radius)	Apply a 2D morphological opening filter.
static ImageOp	stdDev(int radius)	Apply a 2D circular standard deviation filter.
static ImageOp	sum(int radius)	Apply a 2D circular sum filter.
static ImageOp	variance(int radius)	Apply a 2D circular variance filter.

Methods inherited from class java.lang.Object

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

Constructor Details

Filters

public Filters()

Method Details

gaussianBlur

public static ImageOp gaussianBlur(double sigmaX,
 double sigmaY)

Apply a (possibly anisotropic) 2D Gaussian filter.

Parameters:

sigmaX -

sigmaY -

Returns:

gaussianBlur

public static ImageOp gaussianBlur(double sigma)

Apply a 2D Gaussian filter.

Parameters:

sigma -

Returns:

filter2D

public static ImageOp filter2D(Mat kernel)

Apply a 2D filter.

Parameters:

kernel -

Returns:

mean

public static ImageOp mean(int radius)

Apply a 2D circular mean filter.

Parameters:

radius - filter radius

Returns:

sum

public static ImageOp sum(int radius)

Apply a 2D circular sum filter.

Parameters:

radius - filter radius

Returns:

variance

public static ImageOp variance(int radius)

Apply a 2D circular variance filter.

Parameters:

radius - filter radius

Returns:

stdDev

public static ImageOp stdDev(int radius)

Apply a 2D circular standard deviation filter.

Parameters:

radius - filter radius

Returns:

features

public static ImageOp features(Collection<MultiscaleFeatures.MultiscaleFeature> features,
 double sigmaX,
 double sigmaY)

Compute one or more MultiscaleFeatures.MultiscaleFeatures for the specified smoothing values (must be > 0).

Parameters:

features -

sigmaX -

sigmaY -

Returns:

maximum

public static ImageOp maximum(int radius)

Apply a 2D maximum filter.

Parameters:

radius - filter radius. Must be 1 or greater. 1 indicates a 3x3 square; larger filters approximate a circle.

Returns:

minimum

public static ImageOp minimum(int radius)

Apply a 2D minimum filter.

Parameters:

radius - filter radius. Must be 1 or greater. 1 indicates a 3x3 square; larger filters approximate a circle.

Returns:

opening

public static ImageOp opening(int radius)

Apply a 2D morphological opening filter.

Parameters:

radius - filter radius. Must be 1 or greater. 1 indicates a 3x3 square; larger filters approximate a circle.

Returns:

closing

public static ImageOp closing(int radius)

Apply a 2D morphological closing filter.

Parameters:

radius - filter radius. Must be 1 or greater. 1 indicates a 3x3 square; larger filters approximate a circle.

Returns:

median

public static ImageOp median(int radius)

Apply a 2D median filter

Parameters:

radius - filter radius. 1 means a 3x3 filter, 2 means a 5x5 filter. For larger filter sizes, only uint8 input is supported. For radius 1 and 2 the image may also be float32.

Returns: