Class CMYKConversion


  • public class CMYKConversion
    extends Object
    Convert from CMYK color space to RGB color space.
    Since:
    0.10.0
    Author:
    Marco Schmidt
    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private CMYKConversion()  
    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static void convertCMYK32InterleavedToRGB24Planar​(byte[] cmyk, int cmykOffset, byte[] red, int redOffset, byte[] green, int greenOffset, byte[] blue, int blueOffset, int numPixels)
      Converts a number of CMYK pixels stored in interleaved order (all samples of one pixel together: CMYKCMYKCMYK...) to RGB pixels which are stored as planes (all red samples together, etc.).
      static void convertCMYK32PlanarToRGB24Planar​(byte[] cyan, int cyanOffset, byte[] magenta, int magentaOffset, byte[] yellow, int yellowOffset, byte[] black, int blackOffset, byte[] red, int redOffset, byte[] green, int greenOffset, byte[] blue, int blueOffset, int numPixels)  
      static void convertCMYK32ToRGB24​(int cyan, int magenta, int yellow, int black, int[] rgb)
      Converts a 32 bit CMYK pixel to a 24 bit RGB pixel.
      private static int convertToByte​(int value)  
    • Constructor Detail

      • CMYKConversion

        private CMYKConversion()
    • Method Detail

      • convertToByte

        private static int convertToByte​(int value)
      • convertCMYK32ToRGB24

        public static void convertCMYK32ToRGB24​(int cyan,
                                                int magenta,
                                                int yellow,
                                                int black,
                                                int[] rgb)
        Converts a 32 bit CMYK pixel to a 24 bit RGB pixel. Red, green and blue sample will be written at the indexes that RGBIndex defines for them.
        Parameters:
        cyan - the cyan sample, must lie in the interval 0 to 255
        magenta - the magenta sample, must lie in the interval 0 to 255
        yellow - the yellow sample, must lie in the interval 0 to 255
        black - the black sample, must lie in the interval 0 to 255
        rgb - byte array for the destination R-G-B pixel, must have length 3 or larger, will be accessed using RGBIndex, each sample will lie in the interval 0 to 255
      • convertCMYK32InterleavedToRGB24Planar

        public static void convertCMYK32InterleavedToRGB24Planar​(byte[] cmyk,
                                                                 int cmykOffset,
                                                                 byte[] red,
                                                                 int redOffset,
                                                                 byte[] green,
                                                                 int greenOffset,
                                                                 byte[] blue,
                                                                 int blueOffset,
                                                                 int numPixels)
        Converts a number of CMYK pixels stored in interleaved order (all samples of one pixel together: CMYKCMYKCMYK...) to RGB pixels which are stored as planes (all red samples together, etc.).
        Parameters:
        cmyk - a byte array with numPixels times four samples stored in order C-M-Y-K
        cmykOffset - the index of the first byte that is to be accessed
        red - the byte array to which the red samples will be written by this method
        redOffset - the offset into the red array of the first sample to be written
        green - the byte array to which the green samples will be written by this method
        greenOffset - the offset into the green array of the first sample to be written
        blue - the byte array to which the blue samples will be written by this method
        blueOffset - the offset into the blue array of the first sample to be written
      • convertCMYK32PlanarToRGB24Planar

        public static void convertCMYK32PlanarToRGB24Planar​(byte[] cyan,
                                                            int cyanOffset,
                                                            byte[] magenta,
                                                            int magentaOffset,
                                                            byte[] yellow,
                                                            int yellowOffset,
                                                            byte[] black,
                                                            int blackOffset,
                                                            byte[] red,
                                                            int redOffset,
                                                            byte[] green,
                                                            int greenOffset,
                                                            byte[] blue,
                                                            int blueOffset,
                                                            int numPixels)