Package com.twelvemonkeys.imageio.color

Class ColorProfiles

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

    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:
    $Id: ColorSpaces.java,v 1.0 24.01.11 17.51 haraldk Exp$

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private ColorProfiles()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      private static byte[] computeMD5​(byte[] header, byte[] data)  
      static java.awt.color.ICC_Profile createProfile​(byte[] input)
      Reads an ICC Profile from the given byte array, with extra validation.
      static java.awt.color.ICC_Profile createProfileRaw​(byte[] input)
      Creates an ICC Profile from the given byte array, as-is, with no validation.
      (package private) static void fixProfile​(java.awt.color.ICC_Profile profile)  
      private static int getCsType​(byte[] profileHeader)  
      private static java.awt.color.ICC_Profile getInternalProfile​(byte[] profileHeader)  
      (package private) static byte[] getProfileHeaderWithProfileId​(byte[] data)  
      (package private) static byte[] getProfileHeaderWithProfileId​(java.awt.color.ICC_Profile profile)  
      private static int intBigEndian​(byte[] data, int index)  
      static boolean isCS_GRAY​(java.awt.color.ICC_Profile profile)
      Tests whether an ICC color profile is equal to the default GRAY profile.
      static boolean isCS_sRGB​(java.awt.color.ICC_Profile profile)
      Tests whether an ICC color profile is equal to the default sRGB profile.
      (package private) static boolean isOffendingColorProfile​(java.awt.color.ICC_Profile profile)
      Tests whether an ICC color profile is known to cause problems for ColorConvertOp.
      private static byte[] limit​(byte[] input, int size)  
      static java.awt.color.ICC_Profile readProfile​(java.io.InputStream input)
      Reads an ICC Profile from the given input stream, with extra validation.
      (package private) static java.awt.color.ICC_Profile readProfileFromClasspathResource​(java.lang.String profilePath)  
      (package private) static java.awt.color.ICC_Profile readProfileFromPath​(java.lang.String profilePath)  
      static java.awt.color.ICC_Profile readProfileRaw​(java.io.InputStream input)
      Reads an ICC Profile from the given input stream, as-is, with no validation.
      private static int validateAndGetSize​(byte[] input)  
      private static int validateHeaderAndGetSize​(byte[] input)  
      static java.awt.color.ICC_Profile validateProfile​(java.awt.color.ICC_Profile profile)
      Tests whether an ICC color profile is valid.
      (package private) static boolean validationAltersProfileHeader()  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • profileCleaner

        private static final ICCProfileSanitizer profileCleaner
        We need special ICC profile handling for KCMS vs LCMS. Delegate to specific strategy.

    • Constructor Detail

      • ColorProfiles

        private ColorProfiles()

    • Method Detail

      • getProfileHeaderWithProfileId

        static byte[] getProfileHeaderWithProfileId​(java.awt.color.ICC_Profile profile)

      • getProfileHeaderWithProfileId

        static byte[] getProfileHeaderWithProfileId​(byte[] data)

      • computeMD5

        private static byte[] computeMD5​(byte[] header,
                                 byte[] data)

      • 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.CS_sRGB, ColorSpace.isCS_sRGB()

      • isCS_GRAY

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

      • isOffendingColorProfile

        static boolean isOffendingColorProfile​(java.awt.color.ICC_Profile profile)
        Tests whether an ICC color profile is 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:
        true if known to be offending, false otherwise
        Throws:
        java.lang.IllegalArgumentException - if profile is null

      • 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.

      • readProfileRaw

        public static java.awt.color.ICC_Profile readProfileRaw​(java.io.InputStream input)
                                                 throws java.io.IOException
        Reads an ICC Profile from the given input stream, as-is, with no validation. This method behaves exactly like ICC_Profile.getInstance(input).
        Parameters:
        input - the input stream to read from, may not be null
        Returns:
        an ICC_Profile object as read from the input stream.
        Throws:
        java.io.IOException - If an I/O error occurs while reading the stream.
        java.lang.IllegalArgumentException - If input is null or the stream does not contain valid ICC Profile data.
        See Also:
        ICC_Profile.getInstance(InputStream), readProfile(InputStream)

      • readProfile

        public static java.awt.color.ICC_Profile readProfile​(java.io.InputStream input)
                                              throws java.io.IOException
        Reads an ICC Profile from the given input stream, with extra validation. If a matching profile already exists in cache, the cached instance is returned.
        Parameters:
        input - the input stream to read from, may not be null
        Returns:
        an ICC_Profile object as read from the input stream.
        Throws:
        java.io.IOException - If an I/O error occurs while reading the stream.
        java.lang.IllegalArgumentException - If input is null or the stream does not contain valid ICC Profile data.
        See Also:
        ICC_Profile.getInstance(InputStream)

      • createProfileRaw

        public static java.awt.color.ICC_Profile createProfileRaw​(byte[] input)
        Creates an ICC Profile from the given byte array, as-is, with no validation. This method behaves exactly like ICC_Profile.getInstance(input), except that extraneous bytes at the end of the array is ignored.
        Parameters:
        input - the byte array to create a profile from, may not be null
        Returns:
        an ICC_Profile object created from the byte array
        Throws:
        java.lang.IllegalArgumentException - If input is null or the byte array does not contain valid ICC Profile data.
        See Also:
        ICC_Profile.getInstance(byte[]), createProfile(byte[])

      • createProfile

        public static java.awt.color.ICC_Profile createProfile​(byte[] input)
        Reads an ICC Profile from the given byte array, with extra validation. Extraneous bytes at the end of the array are ignored. If a matching profile already exists in cache, the cached instance is returned.
        Parameters:
        input - the byte array to create a profile from, may not be null
        Returns:
        an ICC_Profile object created from the byte array
        Throws:
        java.lang.IllegalArgumentException - If input is null or the byte array does not contain valid ICC Profile data.
        See Also:
        ICC_Profile.getInstance(byte[])

      • limit

        private static byte[] limit​(byte[] input,
                            int size)

      • validateAndGetSize

        private static int validateAndGetSize​(byte[] input)

      • validateHeaderAndGetSize

        private static int validateHeaderAndGetSize​(byte[] input)

      • getInternalProfile

        private static java.awt.color.ICC_Profile getInternalProfile​(byte[] profileHeader)

      • intBigEndian

        private static int intBigEndian​(byte[] data,
                                int index)

      • getCsType

        private static int getCsType​(byte[] profileHeader)

      • readProfileFromClasspathResource

        static java.awt.color.ICC_Profile readProfileFromClasspathResource​(java.lang.String profilePath)

      • readProfileFromPath

        static java.awt.color.ICC_Profile readProfileFromPath​(java.lang.String profilePath)

      • fixProfile

        static void fixProfile​(java.awt.color.ICC_Profile profile)

      • validationAltersProfileHeader

        static boolean validationAltersProfileHeader()