Class ColorSpaces


  • public final class ColorSpaces
    extends java.lang.Object
    A helper class for working with ICC color profiles and color spaces.

    Standard ICC color profiles are read from system-specific locations for known operating systems.

    Color profiles may be configured by placing a property-file com/twelvemonkeys/imageio/color/icc_profiles.properties on the classpath, specifying the full path to the profiles. ICC color profiles are probably already present on your system, or can be downloaded from ICC, Adobe or other places. *

    Example property file:

     # icc_profiles.properties
     ADOBE_RGB_1998=/path/to/Adobe RGB 1998.icc
     GENERIC_CMYK=/path/to/Generic CMYK.icc
     
    Version:
    $Id: ColorSpaces.java,v 1.0 24.01.11 17.51 haraldk Exp$
    Author:
    Harald Kuhr, last modified by $Author: haraldk$
    • Field Summary

      Fields 
      Modifier and Type Field Description
      static int CS_ADOBE_RGB_1998
      The Adobe RGB 1998 (or compatible) color space.
      static int CS_GENERIC_CMYK
      A best-effort "generic" CMYK color space.
    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.awt.color.ICC_ColorSpace createColorSpace​(java.awt.color.ICC_Profile profile)
      Creates an ICC color space from the given ICC color profile.
      static java.awt.color.ColorSpace getColorSpace​(int colorSpace)
      Returns the color space specified by the given color space constant.
      static boolean isCS_sRGB​(java.awt.color.ICC_Profile profile)
      Tests whether an ICC color profile is equal to the default sRGB profile.
      static java.awt.color.ICC_Profile validateProfile​(java.awt.color.ICC_Profile profile)
      Tests whether an ICC color profile is valid.
      • Methods inherited from class java.lang.Object

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

      • CS_ADOBE_RGB_1998

        public static final int CS_ADOBE_RGB_1998
        The Adobe RGB 1998 (or compatible) color space. Either read from disk or built-in.
        See Also:
        Constant Field Values
      • CS_GENERIC_CMYK

        public static final int CS_GENERIC_CMYK
        A best-effort "generic" CMYK color space. Either read from disk or built-in.
        See Also:
        Constant Field Values
    • Method Detail

      • createColorSpace

        public static java.awt.color.ICC_ColorSpace createColorSpace​(java.awt.color.ICC_Profile profile)
        Creates an ICC color space from the given ICC color profile.

        For standard Java color spaces, the built-in instance is returned. Otherwise, color spaces are looked up from cache and created on demand.

        Parameters:
        profile - the ICC color profile. May not be null.
        Returns:
        an ICC color space
        Throws:
        java.lang.IllegalArgumentException - if profile is null.
        java.awt.color.CMMException - if profile is invalid.
      • isCS_sRGB

        public static boolean isCS_sRGB​(java.awt.color.ICC_Profile profile)
        Tests whether an ICC color profile is equal to the default sRGB profile.
        Parameters:
        profile - the ICC profile to test. May not be null.
        Returns:
        true if profile is equal to the default sRGB profile.
        Throws:
        java.lang.IllegalArgumentException - if profile is null
        See Also:
        ColorSpace.isCS_sRGB()
      • validateProfile

        public static java.awt.color.ICC_Profile validateProfile​(java.awt.color.ICC_Profile profile)
        Tests whether an ICC color profile is valid. Invalid profiles are known to cause problems for ColorConvertOp.

        Note that this method only tests if a color conversion using this profile is known to fail. There's no guarantee that the color conversion will succeed even if this method returns false.

        Parameters:
        profile - the ICC color profile. May not be null.
        Returns:
        profile if valid.
        Throws:
        java.lang.IllegalArgumentException - if profile is null
        java.awt.color.CMMException - if profile is invalid.
      • getColorSpace

        public static java.awt.color.ColorSpace getColorSpace​(int colorSpace)
        Returns the color space specified by the given color space constant.

        For standard Java color spaces, the built-in instance is returned. Otherwise, color spaces are looked up from cache and created on demand.

        Parameters:
        colorSpace - the color space constant.
        Returns:
        the ColorSpace specified by the color space constant.
        Throws:
        java.lang.IllegalArgumentException - if colorSpace is not one of the defined color spaces (CS_*).
        See Also:
        ColorSpace, CS_ADOBE_RGB_1998, CS_GENERIC_CMYK