Package com.itextpdf.io.image

Class TiffImageHelper

java.lang.Object

com.itextpdf.io.image.TiffImageHelper

class TiffImageHelper
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	TiffImageHelper.TiffParameters

Constructor Summary

Constructors

Constructor	Description
TiffImageHelper()

Method Summary

Modifier and Type	Method	Description
private static void	applyPredictor(byte[] uncompData, int predictor, int w, int h, int samplesPerPixel)
private static void	decodePackbits(byte[] data, byte[] dst)
private static long[]	getArrayLongShort(TIFFDirectory dir, int tag)
private static int	getDpi(TIFFField fd, int resolutionUnit)
private static void	processExtraSamples(DeflaterOutputStream zip, DeflaterOutputStream mzip, byte[] outBuf, int samplePerPixel, int bitsPerSample, int width, int height)
static void	processImage(ImageData image)	Processes the ImageData as a TIFF image.
private static void	processTiffImage(RandomAccessFileOrArray s, TiffImageHelper.TiffParameters tiff)
private static void	processTiffImageColor(TIFFDirectory dir, RandomAccessFileOrArray s, TiffImageHelper.TiffParameters tiff)

Methods inherited from class java.lang.Object

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

Constructor Detail

TiffImageHelper

TiffImageHelper()

Method Detail

processImage

public static void processImage(ImageData image)

Processes the ImageData as a TIFF image.

Parameters:

image - image to process.

processTiffImage

private static void processTiffImage(RandomAccessFileOrArray s,
                                     TiffImageHelper.TiffParameters tiff)

processTiffImageColor

private static void processTiffImageColor(TIFFDirectory dir,
                                          RandomAccessFileOrArray s,
                                          TiffImageHelper.TiffParameters tiff)

getDpi

private static int getDpi(TIFFField fd,
                          int resolutionUnit)

processExtraSamples

private static void processExtraSamples(DeflaterOutputStream zip,
                                        DeflaterOutputStream mzip,
                                        byte[] outBuf,
                                        int samplePerPixel,
                                        int bitsPerSample,
                                        int width,
                                        int height)
                                 throws java.io.IOException

Throws:

java.io.IOException

getArrayLongShort

private static long[] getArrayLongShort(TIFFDirectory dir,
                                        int tag)

decodePackbits

private static void decodePackbits(byte[] data,
                                   byte[] dst)

applyPredictor

private static void applyPredictor(byte[] uncompData,
                                   int predictor,
                                   int w,
                                   int h,
                                   int samplesPerPixel)