Package qupath.opencv.ml.pixel
Class PixelClassificationMeasurementManager
java.lang.Object
qupath.opencv.ml.pixel.PixelClassificationMeasurementManager
Helper class to compute area-based measurements for regions of interest based on pixel classification.
- Author:
- Pete Bankhead
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Constructor Summary
ConstructorsConstructorDescriptionPixelClassificationMeasurementManager(ImageServer<BufferedImage> classifierServer) Constructor. -
Method Summary
Modifier and TypeMethodDescriptionbooleanaddMeasurements(Collection<? extends PathObject> objectsToMeasure, String measurementID) Add measurements to specified objectsprotected intMake a semi-educated guess as to an appropriate number of threads to use.getCachedMeasurementValue(PathObject pathObject, String name) Get the value of a single measurement for a specified PathObject if all tiles are cached, otherwise return null.getCachedMeasurementValue(ROI roi, String name) Get the value of a single measurement for a specified ROI if all tiles are cached, otherwise return null.Get the names of all measurements that may be returned.getMeasurementValue(PathObject pathObject, String name) Get the value of a single measurement for a specified PathObject, computing it if it is unavailable.getMeasurementValue(PathObject pathObject, String name, boolean cachedOnly) Deprecated.getMeasurementValue(ROI roi, String name) Get the value of a single measurement for a specified ROI, computing it if it is unavailable.getMeasurementValue(ROI roi, String name, boolean cachedOnly) Deprecated.protected intstatic doubleGet a suitable threshold assuming a raster contains probability values.
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Constructor Details
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PixelClassificationMeasurementManager
Constructor.- Parameters:
classifierServer- the server for which measurements will be made.
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Method Details
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getMeasurementValue
@Deprecated public Number getMeasurementValue(PathObject pathObject, String name, boolean cachedOnly) Deprecated.Get the measurement value for this object.- Parameters:
pathObject- the PathObject to measurename- the measurement namecachedOnly- if true, return null if the measurement cannot be determined from cached tiles- Returns:
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getCachedMeasurementValue
Get the value of a single measurement for a specified PathObject if all tiles are cached, otherwise return null.- Parameters:
pathObject-name-- Returns:
- See Also:
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getMeasurementValue
Get the value of a single measurement for a specified PathObject, computing it if it is unavailable.- Parameters:
pathObject-name-- Returns:
- See Also:
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getMeasurementValue
Deprecated.Get the measurement value for this ROI.- Parameters:
roi- the ROI to measurename- the measurement namecachedOnly- if true, return null if the measurement cannot be determined from cached tiles- Returns:
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getCachedMeasurementValue
Get the value of a single measurement for a specified ROI if all tiles are cached, otherwise return null.- Parameters:
roi-name-- Returns:
- See Also:
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getMeasurementValue
Get the value of a single measurement for a specified ROI, computing it if it is unavailable.- Parameters:
roi-name-- Returns:
- See Also:
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addMeasurements
public boolean addMeasurements(Collection<? extends PathObject> objectsToMeasure, String measurementID) Add measurements to specified objects- Parameters:
objectsToMeasure- the objects to measure.measurementID- identifier that is prepended to measurement names, to make these identifiable later (optional; may be null)- Returns:
- true if measurements were added, false otherwise
- Since:
- v0.5.0
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getMeasurementNames
Get the names of all measurements that may be returned.- Returns:
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calculatePreferredParallelism
protected int calculatePreferredParallelism()Make a semi-educated guess as to an appropriate number of threads to use. We lack much information about the image and pixel classifier, so this should be a fairly pessimistic guess.- Returns:
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getPoolSizeProp
protected int getPoolSizeProp() -
getProbabilityThreshold
Get a suitable threshold assuming a raster contains probability values. This is determined from the TransferType. For integer types this is 127.5, otherwise it is 0.5.- Parameters:
raster-- Returns:
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getMeasurementValue(PathObject, String)orgetCachedMeasurementValue(PathObject, String)instead