Class ColorProfiles
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:
- $Id: ColorSpaces.java,v 1.0 24.01.11 17.51 haraldk Exp$
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Nested Class Summary
Nested ClassesModifier and TypeClassDescription(package private) static class
(package private) static class
(package private) static class
(package private) static class
(package private) static class
(package private) static class
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Field Summary
FieldsModifier and TypeFieldDescription(package private) static final int
(package private) static final int
private static final ICCProfileSanitizer
We need special ICC profile handling for KCMS vs LCMS. -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprivate static byte[]
computeMD5
(byte[] header, byte[] data) static ICC_Profile
createProfile
(byte[] input) Reads an ICC Profile from the given byte array, with extra validation.static ICC_Profile
createProfileRaw
(byte[] input) Creates an ICC Profile from the given byte array, as-is, with no validation.(package private) static void
fixProfile
(ICC_Profile profile) private static int
getCsType
(byte[] profileHeader) private static ICC_Profile
getInternalProfile
(byte[] profileHeader) (package private) static byte[]
getProfileHeaderWithProfileId
(byte[] data) (package private) static byte[]
getProfileHeaderWithProfileId
(ICC_Profile profile) private static int
intBigEndian
(byte[] data, int index) static boolean
isCS_GRAY
(ICC_Profile profile) Tests whether an ICC color profile is equal to the default GRAY profile.static boolean
isCS_sRGB
(ICC_Profile profile) Tests whether an ICC color profile is equal to the default sRGB profile.(package private) static boolean
isOffendingColorProfile
(ICC_Profile profile) Tests whether an ICC color profile is known to cause problems forColorConvertOp
.private static byte[]
limit
(byte[] input, int size) static ICC_Profile
readProfile
(InputStream input) Reads an ICC Profile from the given input stream, with extra validation.(package private) static ICC_Profile
readProfileFromClasspathResource
(String profilePath) (package private) static ICC_Profile
readProfileFromPath
(String profilePath) static ICC_Profile
readProfileRaw
(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 ICC_Profile
validateProfile
(ICC_Profile profile) Tests whether an ICC color profile is valid.(package private) static boolean
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Field Details
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profileCleaner
We need special ICC profile handling for KCMS vs LCMS. Delegate to specific strategy. -
ICC_PROFILE_MAGIC
static final int ICC_PROFILE_MAGIC- See Also:
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ICC_PROFILE_HEADER_SIZE
static final int ICC_PROFILE_HEADER_SIZE- See Also:
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Constructor Details
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ColorProfiles
private ColorProfiles()
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Method Details
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getProfileHeaderWithProfileId
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getProfileHeaderWithProfileId
static byte[] getProfileHeaderWithProfileId(byte[] data) -
computeMD5
private static byte[] computeMD5(byte[] header, byte[] data) -
isCS_sRGB
Tests whether an ICC color profile is equal to the default sRGB profile.- Parameters:
profile
- the ICC profile to test. May not benull
.- Returns:
true
ifprofile
is equal to the default sRGB profile.- Throws:
IllegalArgumentException
- ifprofile
isnull
- See Also:
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isCS_GRAY
Tests whether an ICC color profile is equal to the default GRAY profile.- Parameters:
profile
- the ICC profile to test. May not benull
.- Returns:
true
ifprofile
is equal to the default GRAY profile.- Throws:
IllegalArgumentException
- ifprofile
isnull
- See Also:
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isOffendingColorProfile
Tests whether an ICC color profile is known to cause problems forColorConvertOp
.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 benull
.- Returns:
true
if known to be offending,false
otherwise- Throws:
IllegalArgumentException
- ifprofile
isnull
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validateProfile
Tests whether an ICC color profile is valid. Invalid profiles are known to cause problems forColorConvertOp
.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 benull
.- Returns:
profile
if valid.- Throws:
IllegalArgumentException
- ifprofile
isnull
CMMException
- ifprofile
is invalid.
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readProfileRaw
Reads an ICC Profile from the given input stream, as-is, with no validation. This method behaves exactly likeICC_Profile.getInstance(input)
.- Parameters:
input
- the input stream to read from, may not benull
- Returns:
- an
ICC_Profile
object as read from the input stream. - Throws:
IOException
- If an I/O error occurs while reading the stream.IllegalArgumentException
- Ifinput
isnull
or the stream does not contain valid ICC Profile data.- See Also:
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readProfile
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 benull
- Returns:
- an
ICC_Profile
object as read from the input stream. - Throws:
IOException
- If an I/O error occurs while reading the stream.IllegalArgumentException
- Ifinput
isnull
or the stream does not contain valid ICC Profile data.- See Also:
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createProfileRaw
Creates an ICC Profile from the given byte array, as-is, with no validation. This method behaves exactly likeICC_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 benull
- Returns:
- an
ICC_Profile
object created from the byte array - Throws:
IllegalArgumentException
- Ifinput
isnull
or the byte array does not contain valid ICC Profile data.- See Also:
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createProfile
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 benull
- Returns:
- an
ICC_Profile
object created from the byte array - Throws:
IllegalArgumentException
- Ifinput
isnull
or the byte array does not contain valid ICC Profile data.- See Also:
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limit
private static byte[] limit(byte[] input, int size) -
validateAndGetSize
private static int validateAndGetSize(byte[] input) -
validateHeaderAndGetSize
private static int validateHeaderAndGetSize(byte[] input) -
getInternalProfile
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intBigEndian
private static int intBigEndian(byte[] data, int index) -
getCsType
private static int getCsType(byte[] profileHeader) -
readProfileFromClasspathResource
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readProfileFromPath
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fixProfile
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validationAltersProfileHeader
static boolean validationAltersProfileHeader()
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