Class CalRGBColor

  • All Implemented Interfaces:
    java.io.Serializable

    public class CalRGBColor
    extends java.awt.color.ColorSpace
    A ColorSpace for calibrated RGB
    See Also:
    Serialized Form
    • Field Summary

      Fields 
      Modifier and Type Field Description
      (package private) float[] black  
      (package private) static java.awt.color.ColorSpace cieCS  
      (package private) float[] gamma  
      (package private) float[] matrix  
      (package private) float[] max  
      (package private) static java.awt.color.ColorSpace rgbCS  
      (package private) float[] scale  
      private static float[] vonKriesM  
      private static float[] vonKriesMinv  
      (package private) float[] white  
      private static float[] xyzToRGB  
      private static float[] xyzToSRGB  
      • Fields inherited from class java.awt.color.ColorSpace

        CS_CIEXYZ, CS_GRAY, CS_LINEAR_RGB, CS_PYCC, CS_sRGB, TYPE_2CLR, TYPE_3CLR, TYPE_4CLR, TYPE_5CLR, TYPE_6CLR, TYPE_7CLR, TYPE_8CLR, TYPE_9CLR, TYPE_ACLR, TYPE_BCLR, TYPE_CCLR, TYPE_CMY, TYPE_CMYK, TYPE_DCLR, TYPE_ECLR, TYPE_FCLR, TYPE_GRAY, TYPE_HLS, TYPE_HSV, TYPE_Lab, TYPE_Luv, TYPE_RGB, TYPE_XYZ, TYPE_YCbCr, TYPE_Yxy
    • Constructor Summary

      Constructors 
      Constructor Description
      CalRGBColor​(PDFObject obj)
      Create a new Calibrated RGB color space object, given the description in a PDF dictionary.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      private float[] ciexyzToSRGB​(float[] xyz)
      Convert from CIEXYZ, with scale and gamma calculated to sRGB
      float[] fromCIEXYZ​(float[] colorvalue)
      convert from CIEXYZ to Calibrated RGB.
      float[] fromRGB​(float[] rgbvalue)
      convert from RGB to Calibrated RGB.
      int getNumComponents()
      get the number of components (3)
      int getType()
      get the type of this color space (TYPE_RGB)
      (package private) float[] matrixMult​(float[] a, float[] b, int len)
      Slowly multiply two matrices
      float[] toCIEXYZ​(float[] colorvalue)
      convert from Calibrated RGB to CIEXYZ.
      float[] toRGB​(float[] comp)
      convert from Calibrated RGB to standard RGB
      • Methods inherited from class java.awt.color.ColorSpace

        getInstance, getMaxValue, getMinValue, getName, isCS_sRGB
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • vonKriesM

        private static final float[] vonKriesM
      • vonKriesMinv

        private static final float[] vonKriesMinv
      • xyzToSRGB

        private static final float[] xyzToSRGB
      • xyzToRGB

        private static final float[] xyzToRGB
      • scale

        float[] scale
      • max

        float[] max
      • white

        float[] white
      • black

        float[] black
      • matrix

        float[] matrix
      • gamma

        float[] gamma
      • rgbCS

        static java.awt.color.ColorSpace rgbCS
      • cieCS

        static java.awt.color.ColorSpace cieCS
    • Constructor Detail

      • CalRGBColor

        public CalRGBColor​(PDFObject obj)
                    throws java.io.IOException
        Create a new Calibrated RGB color space object, given the description in a PDF dictionary.
        Parameters:
        obj - a dictionary that contains an array of 3 Numbers for "WhitePoint" and "BlackPoint", a Number for "Gamma", and an array of 9 Numbers for "Matrix".
        Throws:
        java.io.IOException
    • Method Detail

      • getNumComponents

        public int getNumComponents()
        get the number of components (3)
        Overrides:
        getNumComponents in class java.awt.color.ColorSpace
      • toRGB

        public float[] toRGB​(float[] comp)
        convert from Calibrated RGB to standard RGB
        Specified by:
        toRGB in class java.awt.color.ColorSpace
        Parameters:
        comp - the Calibrated RGB values (0-1)
        Returns:
        the RGB values (0-1)
      • ciexyzToSRGB

        private float[] ciexyzToSRGB​(float[] xyz)
        Convert from CIEXYZ, with scale and gamma calculated to sRGB
      • fromRGB

        public float[] fromRGB​(float[] rgbvalue)
        convert from RGB to Calibrated RGB. NOT IMPLEMENTED
        Specified by:
        fromRGB in class java.awt.color.ColorSpace
      • fromCIEXYZ

        public float[] fromCIEXYZ​(float[] colorvalue)
        convert from CIEXYZ to Calibrated RGB. NOT IMPLEMENTED
        Specified by:
        fromCIEXYZ in class java.awt.color.ColorSpace
      • getType

        public int getType()
        get the type of this color space (TYPE_RGB)
        Overrides:
        getType in class java.awt.color.ColorSpace
      • toCIEXYZ

        public float[] toCIEXYZ​(float[] colorvalue)
        convert from Calibrated RGB to CIEXYZ. NOT IMPLEMENTED
        Specified by:
        toCIEXYZ in class java.awt.color.ColorSpace
      • matrixMult

        float[] matrixMult​(float[] a,
                           float[] b,
                           int len)
        Slowly multiply two matrices
        Parameters:
        a - the first matrix
        b - the second matrix
        len - the size of each row. All matrix lengths must be a multiple of len.