org.apache.commons.imaging.formats.tiff.photometricinterpreters

Class PhotometricInterpreterYCbCr

java.lang.Object

org.apache.commons.imaging.formats.tiff.photometricinterpreters.PhotometricInterpreter

org.apache.commons.imaging.formats.tiff.photometricinterpreters.PhotometricInterpreterYCbCr

public class PhotometricInterpreterYCbCr
extends PhotometricInterpreter

Constructor Summary

Constructors

Constructor and Description
PhotometricInterpreterYCbCr(int samplesPerPixel, int[] bitsPerSample, int predictor, int width, int height)

Method Summary

Modifier and Type	Method and Description
static int	convertYCbCrtoRGB(int Y, int Cb, int Cr) This method converts a YUV (aka YCbCr) colorspace to a RGB colorspace.
void	interpretPixel(ImageBuilder imageBuilder, int[] samples, int x, int y)
static int	limit(int value, int min, int max)

Methods inherited from class java.lang.Object

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

Constructor Detail

PhotometricInterpreterYCbCr

public PhotometricInterpreterYCbCr(int samplesPerPixel,
                                   int[] bitsPerSample,
                                   int predictor,
                                   int width,
                                   int height)

Method Detail

limit

public static int limit(int value,
                        int min,
                        int max)

convertYCbCrtoRGB

public static int convertYCbCrtoRGB(int Y,
                                    int Cb,
                                    int Cr)

This method converts a YUV (aka YCbCr) colorspace to a RGB colorspace. This is handy when trying to reconstruct an image in Java from YCbCr transmitted data. This routine expects the data to fall in the standard PC 0..255 range per pixel, with the array dimensions corresponding to the imageWidth and imageHeight. These variables are either set manually in the case of a null constructor, or they are automatically calculated from the image parameter constructor.

Parameters:

Y - The Y component set.

Cb - The Cb component set.

Cr - The Cr component set.

Returns:

R The R component.

interpretPixel

public void interpretPixel(ImageBuilder imageBuilder,
                           int[] samples,
                           int x,
                           int y)
                    throws ImageReadException,
                           java.io.IOException

Specified by:

interpretPixel in class PhotometricInterpreter

Throws:

ImageReadException

java.io.IOException