Package 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	Description
AverageCalculationAlgorithm()

Method Summary

Modifier and Type	Method	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 Details

AverageCalculationAlgorithm

 public AverageCalculationAlgorithm() 
            

Method Details

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