Module imagingbook.common

Package imagingbook.common.image

Class GridIndexer2D.ZeroValueIndexer

java.lang.Object

imagingbook.common.image.GridIndexer2D

imagingbook.common.image.GridIndexer2D.ZeroValueIndexer

All Implemented Interfaces:

Cloneable

Enclosing class:

GridIndexer2D

public static class GridIndexer2D.ZeroValueIndexer
extends GridIndexer2D

This indexer returns -1 for coordinates outside the image bounds, indicating that a (predefined) default value should be used. There is no public constructor. To instantiate use method GridIndexer2D.create(int, int, OutOfBoundsStrategy) with OutOfBoundsStrategy.ZeroValues.

Nested Class Summary

Nested classes/interfaces inherited from class imagingbook.common.image.GridIndexer2D

GridIndexer2D.ExceptionIndexer, GridIndexer2D.MirrorImageIndexer, GridIndexer2D.NearestBorderIndexer, GridIndexer2D.OutOfImageException, GridIndexer2D.ZeroValueIndexer

Field Summary

Fields inherited from class imagingbook.common.image.GridIndexer2D

DefaultOutOfBoundsStrategy

Method Summary

Modifier and Type	Method	Description
int	getIndex(int u, int v)	Returns the 1D array index for a given pair of image coordinates.

Methods inherited from class imagingbook.common.image.GridIndexer2D

create, getHeight, getOutOfBoundsStrategy, getWidth

Methods inherited from class java.lang.Object

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

Method Details

getIndex

public int getIndex(int u,
 int v)

Description copied from class: GridIndexer2D

Returns the 1D array index for a given pair of image coordinates. For u, v coordinates outside the image, the returned index depends on the concrete sub-class of GridIndexer2D. As a general rule, this method either returns a valid 1D array index or throws an exception. Subclasses implement (override) this method.

Specified by:

getIndex in class GridIndexer2D

Parameters:

u - x-coordinate

v - y-coordinate

Returns:

1D array index