Class YCbCrConverter

java.lang.Object

com.twelvemonkeys.imageio.color.YCbCrConverter

public final class YCbCrConverter
extends Object

Fast YCbCr to RGB conversion.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	YCbCrConverter.ITU_R_601
private static final class	YCbCrConverter.JPEG

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	CENTERJSAMPLE
private static final int	MAXJSAMPLE
private static final int	ONE_HALF
private static final int	SCALEBITS	Define tables for YCC->RGB color space conversion.

Constructor Summary

Constructors

Constructor	Description
YCbCrConverter()

Method Summary

Modifier and Type	Method	Description
private static byte	clamp(int val)
static void	convertJPEGYCbCr2RGB(byte[] yCbCr, byte[] rgb, int offset)
static void	convertRec601YCbCr2RGB(byte[] yCbCr, byte[] rgb, int offset)
static void	convertYCbCr2RGB(byte[] yCbCr, byte[] rgb, double[] coefficients, double[] referenceBW, int offset)

Methods inherited from class Object

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

Field Details

SCALEBITS

private static final int SCALEBITS

Define tables for YCC->RGB color space conversion.

See Also:

• Constant Field Values

MAXJSAMPLE

private static final int MAXJSAMPLE

See Also:

• Constant Field Values

CENTERJSAMPLE

private static final int CENTERJSAMPLE

See Also:

• Constant Field Values

ONE_HALF

private static final int ONE_HALF

See Also:

• Constant Field Values

Constructor Details

YCbCrConverter

public YCbCrConverter()

Method Details

convertYCbCr2RGB

public static void convertYCbCr2RGB(byte[] yCbCr,
 byte[] rgb,
 double[] coefficients,
 double[] referenceBW,
 int offset)

convertJPEGYCbCr2RGB

public static void convertJPEGYCbCr2RGB(byte[] yCbCr,
 byte[] rgb,
 int offset)

convertRec601YCbCr2RGB

public static void convertRec601YCbCr2RGB(byte[] yCbCr,
 byte[] rgb,
 int offset)

clamp

private static byte clamp(int val)