Module org.sejda.sambox
Package org.sejda.sambox.pdmodel.graphics.color

Class PDCalRGB

java.lang.Object
org.sejda.sambox.pdmodel.graphics.color.PDColorSpace
org.sejda.sambox.pdmodel.graphics.color.PDCIEBasedColorSpace
org.sejda.sambox.pdmodel.graphics.color.PDCIEDictionaryBasedColorSpace
org.sejda.sambox.pdmodel.graphics.color.PDCalRGB
All Implemented Interfaces:
COSObjectable
public class PDCalRGB extends PDCIEDictionaryBasedColorSpace
A CalRGB colour space is a CIE-based colour space with one transformation stage instead of two. In this type of space, A, B, and C represent calibrated red, green, and blue colour values.
Author:
Ben Litchfield, John Hewson

  • Constructor Details

    • PDCalRGB

      public PDCalRGB()
      Creates a new CalRGB color space.

    • PDCalRGB

      public PDCalRGB(COSArray rgb)
      Creates a new CalRGB color space using the given COS array.
      Parameters:
      rgb - the cos array which represents this color space

  • Method Details

    • getName

      public String getName()
      Description copied from class: PDColorSpace
      Returns the name of the color space.
      Specified by:
      getName in class PDColorSpace
      Returns:
      the name of the color space

    • getNumberOfComponents

      public int getNumberOfComponents()
      Description copied from class: PDColorSpace
      Returns the number of components in this color space
      Specified by:
      getNumberOfComponents in class PDColorSpace
      Returns:
      the number of components in this color space

    • getDefaultDecode

      public float[] getDefaultDecode(int bitsPerComponent)
      Description copied from class: PDColorSpace
      Returns the default decode array for this color space.
      Specified by:
      getDefaultDecode in class PDColorSpace
      Parameters:
      bitsPerComponent - the number of bits per component.
      Returns:
      the default decode array

    • getInitialColor

      public PDColor getInitialColor()
      Description copied from class: PDColorSpace
      Returns the initial color value for this color space.
      Specified by:
      getInitialColor in class PDColorSpace
      Returns:
      the initial color value for this color space

    • toRGB

      public float[] toRGB(float[] value)
      Description copied from class: PDColorSpace
      Returns the RGB equivalent of the given color value.
      Specified by:
      toRGB in class PDColorSpace
      Parameters:
      value - a color value with component values between 0 and 1
      Returns:
      an array of R,G,B value between 0 and 255

    • getGamma

      public final PDGamma getGamma()
      Returns the gamma value. If none is present then the default of 1,1,1 will be returned.
      Returns:
      the gamma value

    • getMatrix

      public final float[] getMatrix()
      Returns the linear interpretation matrix, which is an array of nine numbers. If the underlying dictionary contains null then the identity matrix will be returned.
      Returns:
      the linear interpretation matrix

    • setGamma

      public final void setGamma(PDGamma gamma)
      Sets the gamma value.
      Parameters:
      gamma - the new gamma value

    • setMatrix

      public final void setMatrix(Matrix matrix)
      Sets the linear interpretation matrix. Passing in null will clear the matrix.
      Parameters:
      matrix - the new linear interpretation matrix, or null