com.itextpdf.pdfoptimizer.handlers.imagequality.processors.scaling

Class AverageCalculationAlgorithm

java.lang.Object

com.itextpdf.pdfoptimizer.handlers.imagequality.processors.scaling.AverageCalculationAlgorithm

All Implemented Interfaces:

IScalingAlgorithm

public class AverageCalculationAlgorithm
extends Object
implements IScalingAlgorithm

Scaling algorithm which calculates average color of all pixels of the original image covered by the pixel of resulting image.

Constructor Summary

Constructors

Constructor and Description
AverageCalculationAlgorithm()

Method Summary

Modifier and Type	Method and Description
BitmapImagePixels	scale(BitmapImagePixels original, double scaling) Scales a bitmap image by calculating average color of all pixels of the original image covered by the pixel of resulting image.

Methods inherited from class java.lang.Object

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

Constructor Detail

AverageCalculationAlgorithm

public AverageCalculationAlgorithm()

Method Detail

scale

public BitmapImagePixels scale(BitmapImagePixels original,
                               double scaling)

Scales a bitmap image by calculating average color of all pixels of the original image covered by the pixel of resulting image.

Specified by:

scale in interface IScalingAlgorithm

Parameters:

original - is an image to scale presented as BitmapImagePixels

scaling - is a scaling coefficient. Should be in (0, 1] range

Returns:

scaled image