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net.sourceforge.jiu.color.conversion
Class PCDYCbCrConversion

java.lang.Object
  extended bynet.sourceforge.jiu.color.conversion.PCDYCbCrConversion
All Implemented Interfaces:
RGBIndex, YCbCrIndex

public class PCDYCbCrConversion
extends Object
implements RGBIndex, YCbCrIndex

Convert from YCbCr color space (as used in Kodak PCD files) to RGB. Only works for 24 bits per pixel (8 bits per channel) image data.

Author:
Marco Schmidt

Field Summary
 
Fields inherited from interface net.sourceforge.jiu.data.RGBIndex
INDEX_BLUE, INDEX_GREEN, INDEX_RED
 
Fields inherited from interface net.sourceforge.jiu.color.YCbCrIndex
INDEX_CB, INDEX_CR, INDEX_Y
 
Method Summary
static void convertYccToRgb(byte[] y, byte[] cb, byte[] cr, int yccOffset, byte[] r, byte[] g, byte[] b, int rgbOffset, int num)
          Converts pixels from YCbCr to RGB color space.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Method Detail

convertYccToRgb

public static void convertYccToRgb(byte[] y,
                                   byte[] cb,
                                   byte[] cr,
                                   int yccOffset,
                                   byte[] r,
                                   byte[] g,
                                   byte[] b,
                                   int rgbOffset,
                                   int num)
                            throws IllegalArgumentException
Converts pixels from YCbCr to RGB color space. Input pixels are given as three byte arrays for luminance and the two chroma components. Same for output pixels, three other arrays for red, green and blue. Offset values can be specified separately for the YCbCr and the RGB arrays.

Parameters:
y - the array of gray source samples
cb - the array of chroma blue source samples
cr - the array of chroma red source samples
yccOffset - offset value into the arrays y, cb and cr; color conversion will be started at the yccOffset'th value of each array
r - the array of red destination samples
g - the array of green destination samples
b - the array of blue destination samples
rgbOffset - offset value into the arrays r, g and b; destination samples will be written to the three arrays starting at the rgbOffset'th value of each array
num - the number of pixels to be converted
Throws:
IllegalArgumentException - if one of the int values is negative or one of the arrays is null or too small

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Copyright © 2000, 2001, 2002, 2003, 2004 Marco Schmidt