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

Class IndexedColorDecoder

java.lang.Object

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

com.itextpdf.pdfoptimizer.handlers.util.decoders.IndexedColorDecoder

       public final class IndexedColorDecoder extends ColorDecoder
      

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

Constructor Summary

Constructors

Constructor	Description
IndexedColorDecoder(double[] decodeArray, int bitsPerComponent)	Creates an instance of indexed 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

IndexedColorDecoder

             public IndexedColorDecoder
             (double[] decodeArray, int bitsPerComponent)
            

Creates an instance of indexed color decoder.

Parameters:

decodeArray - decode array in image stream

bitsPerComponent - Amount of bits representing indexed color

Method Details

decode

             public double[] decode
             (double[] color)
            

Converts color according to decode array.

Overrides:

decode in class ColorDecoder

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.

Overrides:

decodeComponent in class ColorDecoder

Parameters:

colorComponent - a value for color component

componentIndex - an index of the color component being decoded

Returns:

decoded value for color component