A representation of color profile data for device independent and device dependent color spaces based on the International Color Consortium Specification ICC.1:2001-12, File Format for Color Profiles, (see http://www.color.org).

An ICC_ColorSpace object can be constructed from an appropriate ICC_Profile. Typically, an ICC_ColorSpace would be associated with an ICC Profile which is either an input, display, or output profile (see the ICC specification). There are also device link, abstract, color space conversion, and named color profiles. These are less useful for tagging a color or image, but are useful for other purposes (in particular device link profiles can provide improved performance for converting from one device's color space to another's).

ICC Profiles represent transformations from the color space of the profile (e.g. a monitor) to a Profile Connection Space (PCS). Profiles of interest for tagging images or colors have a PCS which is one of the two specific device independent spaces (one CIEXYZ space and one CIELab space) defined in the ICC Profile Format Specification. Most profiles of interest either have invertible transformations or explicitly specify transformations going both directions.

@version
10 Feb 1997
Profile class is abstract.
Profile class is color space conversion.
Profile class is device link.
Profile class is display.
Profile class is input.
Profile class is named color.
Profile class is output.
ICC Profile Rendering Intent: AbsoluteColorimetric.
ICC Profile Constant: curveType count.
ICC Profile Constant: curveType data.
ICC Profile Header Location: device attributes.
ICC Profile Header Location: CMM for this profile.
ICC Profile Header Location: color space of data.
ICC Profile Header Location: profile creator.
ICC Profile Header Location: date profile was created.
ICC Profile Header Location: type of profile.
ICC Profile Header Location: various bit settings.
ICC Profile Header Location: profile illuminant.
ICC Profile Header Location: icMagicNumber.
ICC Profile Header Location: device manufacturer.
ICC Profile Header Location: device model number.
ICC Profile Header Location: PCS - XYZ or Lab only.
ICC Profile Header Location: primary platform.
ICC Profile Header Location: profile's ID.
ICC Profile Header Location: rendering intent.
ICC Profile Header Location: profile size in bytes.
ICC Profile Header Location: format version number.
ICC Profile Rendering Intent: ICC-AbsoluteColorimetric.
ICC Profile Rendering Intent: Media-RelativeColorimetric.
ICC Profile Rendering Intent: Perceptual.
ICC Profile Rendering Intent: RelativeColorimetric.
ICC Profile Rendering Intent: Saturation.
ICC Profile Class Signature: 'abst'.
ICC Profile Tag Signature: 'A2B0'.
ICC Profile Tag Signature: 'A2B1'.
ICC Profile Tag Signature: 'A2B2'.
ICC Profile Tag Signature: 'bXYZ'.
ICC Profile Tag Signature: 'bXYZ'.
ICC Profile Tag Signature: 'bTRC'.
ICC Profile Tag Signature: 'B2A0'.
ICC Profile Tag Signature: 'B2A1'.
ICC Profile Tag Signature: 'B2A2'.
ICC Profile Tag Signature: 'calt'.
ICC Profile Tag Signature: 'targ'.
ICC Profile Tag Signature: 'chad'.
ICC Profile Tag Signature: 'chrm'.
ICC Profile Color Space Type Signature: 'CMY '.
ICC Profile Color Space Type Signature: 'CMYK'.
ICC Profile Tag Signature: 'clro'.
ICC Profile Tag Signature: 'clrt'.
ICC Profile Class Signature: 'spac'.
ICC Profile Tag Signature: 'cprt'.
ICC Profile Tag Signature: 'crdi'.
ICC Profile Tag Signature: 'dmnd'.
ICC Profile Tag Signature: 'dmdd'.
ICC Profile Tag Signature: 'devs'.
ICC Profile Class Signature: 'mntr'.
ICC Profile Tag Signature: 'gamt'.
ICC Profile Color Space Type Signature: 'GRAY'.
ICC Profile Tag Signature: 'kTRC'.
ICC Profile Tag Signature: 'gXYZ'.
ICC Profile Tag Signature: 'gXYZ'.
ICC Profile Tag Signature: 'gTRC'.
ICC Profile Tag Signature: 'head' - special.
ICC Profile Color Space Type Signature: 'HLS'.
ICC Profile Color Space Type Signature: 'HSV'.
ICC Profile Class Signature: 'scnr'.
ICC Profile Color Space Type Signature: 'Lab '.
ICC Profile Class Signature: 'link'.
ICC Profile Tag Signature: 'lumi'.
ICC Profile Color Space Type Signature: 'Luv '.
ICC Profile Tag Signature: 'meas'.
ICC Profile Tag Signature: 'bkpt'.
ICC Profile Tag Signature: 'wtpt'.
ICC Profile Tag Signature: 'ncl2'.
ICC Profile Class Signature: 'nmcl'.
ICC Profile Class Signature: 'prtr'.
ICC Profile Tag Signature: 'resp'.
ICC Profile Tag Signature: 'pre0'.
ICC Profile Tag Signature: 'pre1'.
ICC Profile Tag Signature: 'pre2'.
ICC Profile Tag Signature: 'desc'.
ICC Profile Tag Signature: 'pseq'.
ICC Profile Tag Signature: 'psd0'.
ICC Profile Tag Signature: 'psd1'.
ICC Profile Tag Signature: 'psd2'.
ICC Profile Tag Signature: 'psd3'.
ICC Profile Tag Signature: 'ps2s'.
ICC Profile Tag Signature: 'ps2i'.
ICC Profile Tag Signature: 'rXYZ'.
ICC Profile Tag Signature: 'rXYZ'.
ICC Profile Tag Signature: 'rTRC'.
ICC Profile Color Space Type Signature: 'RGB '.
ICC Profile Tag Signature: 'scrd'.
ICC Profile Tag Signature: 'scrn'.
ICC Profile Color Space Type Signature: '2CLR'.
ICC Profile Color Space Type Signature: '3CLR'.
ICC Profile Color Space Type Signature: '4CLR'.
ICC Profile Color Space Type Signature: '5CLR'.
ICC Profile Color Space Type Signature: '6CLR'.
ICC Profile Color Space Type Signature: '7CLR'.
ICC Profile Color Space Type Signature: '8CLR'.
ICC Profile Color Space Type Signature: '9CLR'.
ICC Profile Color Space Type Signature: 'ACLR'.
ICC Profile Color Space Type Signature: 'BCLR'.
ICC Profile Color Space Type Signature: 'CCLR'.
ICC Profile Color Space Type Signature: 'DCLR'.
ICC Profile Color Space Type Signature: 'ECLR'.
ICC Profile Color Space Type Signature: 'FCLR'.
ICC Profile Tag Signature: 'tech'.
ICC Profile Tag Signature: 'bfd '.
ICC Profile Tag Signature: 'vued'.
ICC Profile Tag Signature: 'view'.
ICC Profile Color Space Type Signature: 'XYZ '.
ICC Profile Color Space Type Signature: 'YCbr'.
ICC Profile Color Space Type Signature: 'Yxy '.
ICC Profile Constant: reserved.
ICC Profile Constant: tag type signaturE.
ICC Profile Constant: XYZNumber X.
Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

Parameters
objthe reference object with which to compare.
Return
true if this object is the same as the obj argument; false otherwise.
Returns the runtime class of an object. That Class object is the object that is locked by static synchronized methods of the represented class.
Return
The java.lang.Class object that represents the runtime class of the object. The result is of type {@code Class} where X is the erasure of the static type of the expression on which getClass is called.
Returns the color space type. Returns one of the color space type constants defined by the ColorSpace class. This is the "input" color space of the profile. The type defines the number of components of the color space and the interpretation, e.g. TYPE_RGB identifies a color space with three components - red, green, and blue. It does not define the particular color characteristics of the space, e.g. the chromaticities of the primaries.
Return
One of the color space type constants defined in the ColorSpace class.
Returns a byte array corresponding to the data of this ICC_Profile.
Return
A byte array that contains the profile data.
Returns a particular tagged data element from the profile as a byte array. Elements are identified by signatures as defined in the ICC specification. The signature icSigHead can be used to get the header. This method is useful for advanced applets or applications which need to access profile data directly.
Parameters
tagSignatureThe ICC tag signature for the data element you want to get.
Return
A byte array that contains the tagged data element. Returns null if the specified tag doesn't exist.
Constructs an ICC_Profile object corresponding to the data in a byte array. Throws an IllegalArgumentException if the data does not correspond to a valid ICC Profile.
Parameters
datathe specified ICC Profile data
Return
an ICC_Profile object corresponding to the data in the specified data array.
Constructs an ICC_Profile corresponding to the data in an InputStream. This method throws an IllegalArgumentException if the stream does not contain valid ICC Profile data. It throws an IOException if an I/O error occurs while reading the stream.
Parameters
sThe input stream from which to read the profile data.
Return
an ICC_Profile object corresponding to the data in the specified InputStream.
Throws
IOExceptionIf an I/O error occurs while reading the stream.
IllegalArgumentExceptionIf the stream does not contain valid ICC Profile data.
Constructs an ICC_Profile corresponding to one of the specific color spaces defined by the ColorSpace class (for example CS_sRGB). Throws an IllegalArgumentException if cspace is not one of the defined color spaces.
Parameters
cspacethe type of color space to create a profile for. The specified type is one of the color space constants defined in the ColorSpace class.
Return
an ICC_Profile object corresponding to the specified ColorSpace type.
Throws
IllegalArgumentExceptionIf cspace is not one of the predefined color space types.
Constructs an ICC_Profile corresponding to the data in a file. fileName may be an absolute or a relative file specification. Relative file names are looked for in several places: first, relative to any directories specified by the java.iccprofile.path property; second, relative to any directories specified by the java.class.path property; finally, in a directory used to store profiles always available, such as the profile for sRGB. Built-in profiles use .pf as the file name extension for profiles, e.g. sRGB.pf. This method throws an IOException if the specified file cannot be opened or if an I/O error occurs while reading the file. It throws an IllegalArgumentException if the file does not contain valid ICC Profile data.
Parameters
fileNameThe file that contains the data for the profile.
Return
an ICC_Profile object corresponding to the data in the specified file.
Throws
IOExceptionIf the specified file cannot be opened or an I/O error occurs while reading the file.
IllegalArgumentExceptionIf the file does not contain valid ICC Profile data.
SecurityExceptionIf a security manager is installed and it does not permit read access to the given file.
Returns profile major version.
Return
The major version of the profile.
Returns profile minor version.
Return
The minor version of the profile.
Returns the number of color components in the "input" color space of this profile. For example if the color space type of this profile is TYPE_RGB, then this method will return 3.
Return
The number of color components in the profile's input color space.
Throws
ProfileDataExceptionif color space is in the profile is invalid
Returns the color space type of the Profile Connection Space (PCS). Returns one of the color space type constants defined by the ColorSpace class. This is the "output" color space of the profile. For an input, display, or output profile useful for tagging colors or images, this will be either TYPE_XYZ or TYPE_Lab and should be interpreted as the corresponding specific color space defined in the ICC specification. For a device link profile, this could be any of the color space type constants.
Return
One of the color space type constants defined in the ColorSpace class.
Returns the profile class.
Return
One of the predefined profile class constants.
Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by java.util.Hashtable.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hashtables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)

Return
a hash code value for this object.
Wakes up a single thread that is waiting on this object's monitor. If any threads are waiting on this object, one of them is chosen to be awakened. The choice is arbitrary and occurs at the discretion of the implementation. A thread waits on an object's monitor by calling one of the wait methods.

The awakened thread will not be able to proceed until the current thread relinquishes the lock on this object. The awakened thread will compete in the usual manner with any other threads that might be actively competing to synchronize on this object; for example, the awakened thread enjoys no reliable privilege or disadvantage in being the next thread to lock this object.

This method should only be called by a thread that is the owner of this object's monitor. A thread becomes the owner of the object's monitor in one of three ways:

  • By executing a synchronized instance method of that object.
  • By executing the body of a synchronized statement that synchronizes on the object.
  • For objects of type Class, by executing a synchronized static method of that class.

Only one thread at a time can own an object's monitor.

Throws
IllegalMonitorStateExceptionif the current thread is not the owner of this object's monitor.
Wakes up all threads that are waiting on this object's monitor. A thread waits on an object's monitor by calling one of the wait methods.

The awakened threads will not be able to proceed until the current thread relinquishes the lock on this object. The awakened threads will compete in the usual manner with any other threads that might be actively competing to synchronize on this object; for example, the awakened threads enjoy no reliable privilege or disadvantage in being the next thread to lock this object.

This method should only be called by a thread that is the owner of this object's monitor. See the notify method for a description of the ways in which a thread can become the owner of a monitor.

Throws
IllegalMonitorStateExceptionif the current thread is not the owner of this object's monitor.
Sets a particular tagged data element in the profile from a byte array. This method is useful for advanced applets or applications which need to access profile data directly.
Parameters
tagSignatureThe ICC tag signature for the data element you want to set.
tagDatathe data to set for the specified tag signature
See Also
Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 
Return
a string representation of the object.
Causes current thread to wait until another thread invokes the method or the method for this object. In other words, this method behaves exactly as if it simply performs the call wait(0).

The current thread must own this object's monitor. The thread releases ownership of this monitor and waits until another thread notifies threads waiting on this object's monitor to wake up either through a call to the notify method or the notifyAll method. The thread then waits until it can re-obtain ownership of the monitor and resumes execution.

As in the one argument version, interrupts and spurious wakeups are possible, and this method should always be used in a loop:

     synchronized (obj) {
         while (<condition does not hold>)
             obj.wait();
         ... // Perform action appropriate to condition
     }
 
This method should only be called by a thread that is the owner of this object's monitor. See the notify method for a description of the ways in which a thread can become the owner of a monitor.
Throws
IllegalMonitorStateExceptionif the current thread is not the owner of the object's monitor.
InterruptedExceptionif another thread interrupted the current thread before or while the current thread was waiting for a notification. The interrupted status of the current thread is cleared when this exception is thrown.
Causes current thread to wait until either another thread invokes the method or the method for this object, or a specified amount of time has elapsed.

The current thread must own this object's monitor.

This method causes the current thread (call it T) to place itself in the wait set for this object and then to relinquish any and all synchronization claims on this object. Thread T becomes disabled for thread scheduling purposes and lies dormant until one of four things happens:

  • Some other thread invokes the notify method for this object and thread T happens to be arbitrarily chosen as the thread to be awakened.
  • Some other thread invokes the notifyAll method for this object.
  • Some other thread interrupts thread T.
  • The specified amount of real time has elapsed, more or less. If timeout is zero, however, then real time is not taken into consideration and the thread simply waits until notified.
The thread T is then removed from the wait set for this object and re-enabled for thread scheduling. It then competes in the usual manner with other threads for the right to synchronize on the object; once it has gained control of the object, all its synchronization claims on the object are restored to the status quo ante - that is, to the situation as of the time that the wait method was invoked. Thread T then returns from the invocation of the wait method. Thus, on return from the wait method, the synchronization state of the object and of thread T is exactly as it was when the wait method was invoked.

A thread can also wake up without being notified, interrupted, or timing out, a so-called spurious wakeup. While this will rarely occur in practice, applications must guard against it by testing for the condition that should have caused the thread to be awakened, and continuing to wait if the condition is not satisfied. In other words, waits should always occur in loops, like this one:

     synchronized (obj) {
         while (<condition does not hold>)
             obj.wait(timeout);
         ... // Perform action appropriate to condition
     }
 
(For more information on this topic, see Section 3.2.3 in Doug Lea's "Concurrent Programming in Java (Second Edition)" (Addison-Wesley, 2000), or Item 50 in Joshua Bloch's "Effective Java Programming Language Guide" (Addison-Wesley, 2001).

If the current thread is interrupted by another thread while it is waiting, then an InterruptedException is thrown. This exception is not thrown until the lock status of this object has been restored as described above.

Note that the wait method, as it places the current thread into the wait set for this object, unlocks only this object; any other objects on which the current thread may be synchronized remain locked while the thread waits.

This method should only be called by a thread that is the owner of this object's monitor. See the notify method for a description of the ways in which a thread can become the owner of a monitor.

Parameters
timeoutthe maximum time to wait in milliseconds.
Throws
IllegalArgumentExceptionif the value of timeout is negative.
IllegalMonitorStateExceptionif the current thread is not the owner of the object's monitor.
InterruptedExceptionif another thread interrupted the current thread before or while the current thread was waiting for a notification. The interrupted status of the current thread is cleared when this exception is thrown.
Causes current thread to wait until another thread invokes the method or the method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.

This method is similar to the wait method of one argument, but it allows finer control over the amount of time to wait for a notification before giving up. The amount of real time, measured in nanoseconds, is given by:

 1000000*timeout+nanos

In all other respects, this method does the same thing as the method of one argument. In particular, wait(0, 0) means the same thing as wait(0).

The current thread must own this object's monitor. The thread releases ownership of this monitor and waits until either of the following two conditions has occurred:

  • Another thread notifies threads waiting on this object's monitor to wake up either through a call to the notify method or the notifyAll method.
  • The timeout period, specified by timeout milliseconds plus nanos nanoseconds arguments, has elapsed.

The thread then waits until it can re-obtain ownership of the monitor and resumes execution.

As in the one argument version, interrupts and spurious wakeups are possible, and this method should always be used in a loop:

     synchronized (obj) {
         while (<condition does not hold>)
             obj.wait(timeout, nanos);
         ... // Perform action appropriate to condition
     }
 
This method should only be called by a thread that is the owner of this object's monitor. See the notify method for a description of the ways in which a thread can become the owner of a monitor.
Parameters
timeoutthe maximum time to wait in milliseconds.
nanosadditional time, in nanoseconds range 0-999999.
Throws
IllegalArgumentExceptionif the value of timeout is negative or the value of nanos is not in the range 0-999999.
IllegalMonitorStateExceptionif the current thread is not the owner of this object's monitor.
InterruptedExceptionif another thread interrupted the current thread before or while the current thread was waiting for a notification. The interrupted status of the current thread is cleared when this exception is thrown.
Write this ICC_Profile to an OutputStream.
Parameters
sThe stream to write the profile data to.
Throws
IOExceptionIf an I/O error occurs while writing to the stream.
Write this ICC_Profile to a file.
Parameters
fileNameThe file to write the profile data to.
Throws
IOExceptionIf the file cannot be opened for writing or an I/O error occurs while writing to the file.