Package com.twelvemonkeys.imageio.color
Class ColorProfiles
java.lang.Object
com.twelvemonkeys.imageio.color.ColorProfiles
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:
- $Id: ColorSpaces.java,v 1.0 24.01.11 17.51 haraldk Exp$
- Author:
- Harald Kuhr, last modified by $Author: haraldk$
-
Method Summary
Modifier and TypeMethodDescriptionstatic 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.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.static ICC_Profile
readProfile
(InputStream input) Reads an ICC Profile from the given input stream, with extra validation.static ICC_Profile
readProfileRaw
(InputStream input) Reads an ICC Profile from the given input stream, as-is, with no validation.static ICC_Profile
validateProfile
(ICC_Profile profile) Tests whether an ICC color profile is valid.
-
Method Details
-
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:
-
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:
-
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.
-
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:
-
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:
-
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:
-
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:
-