Package com.itextpdf.pdfoptimizer.handlers.util.decoders

Class ColorDecoder

java.lang.Object

com.itextpdf.pdfoptimizer.handlers.util.decoders.ColorDecoder

Direct Known Subclasses:

BlankColorDecoder, CmykColorDecoder, IndexedColorDecoder, RgbColorDecoder

 public class ColorDecoder extends Object 
      

Class for converting color in an image according to decode array in image stream.

Constructor Summary

Constructors

Constructor	Description
ColorDecoder(double[] decodeArray, double maxComponentValue)	Creates an instance of color decoder.

Method Summary

Modifier and Type	Method	Description
double[]	decode(double[] color)	Converts color according to decode array.
double	decodeComponent(double colorComponent, int componentIndex)	Converts one color component according to decode array.

Methods inherited from class java.lang.Object

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

Constructor Details

ColorDecoder

 public ColorDecoder 
             (double[] decodeArray, double maxComponentValue) 
            

Creates an instance of color decoder.

Parameters:

decodeArray - decode array in image stream

maxComponentValue - maximum value for the color component, 1 in most cases

Method Details

decode

 public double[] decode 
             (double[] color) 
            

Converts color according to decode array.

Parameters:

color - an array representing the color

Returns:

decoded array representing the color

decodeComponent

 public double decodeComponent 
             (double colorComponent, int componentIndex) 
            

Converts one color component according to decode array.

Parameters:

colorComponent - a value for color component

componentIndex - an index of the color component being decoded

Returns:

decoded value for color component