Module imagingbook.common

Package imagingbook.common.image

Class Projection

java.lang.Object

imagingbook.common.image.Projection

public class Projection
extends Object

This class implements horizontal and vertical projections of scalar-valued images. See Sec. 8.7 of [1] for additional details.

[1] W. Burger, M.J. Burge, Digital Image Processing – An Algorithmic Introduction, 3rd ed, Springer (2022).

Version:

2022/09/28

Constructor Summary

Constructors

Constructor	Description
Projection(ImageProcessor ip)	Constructor, works only on images of type ByteProcessor, ShortProcessor, and FloatProcessor.

Method Summary

Modifier and Type	Method	Description
double[]	getHorizontal()	Returns the horizontal projection of the associated image.
double[]	getVertical()	Returns the vertical projection of the associated image.

Methods inherited from class java.lang.Object

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

Constructor Details

Projection

public Projection(ImageProcessor ip)

Constructor, works only on images of type ByteProcessor, ShortProcessor, and FloatProcessor. Throws an exception if the specified image is of type ColorProcessor.

Parameters:

ip - the image to process

Method Details

getHorizontal

public double[] getHorizontal()

Returns the horizontal projection of the associated image. The length of the returned array corresponds to the image height.

Returns:

the horizontal projection array

getVertical

public double[] getVertical()

Returns the vertical projection of the associated image. The length of the returned array corresponds to the image width.

Returns:

the vertical projection array