org.opengis.style
Class ContrastMethod

Object
  extended by CodeList<ContrastMethod>
      extended by ContrastMethod
All Implemented Interfaces:
Serializable, Comparable<ContrastMethod>

@XmlElement(value="ContrastEnchancement:type")
public final class ContrastMethod
extends CodeList<ContrastMethod>

The ContrastEnhancement element defines contrast enhancement for a channel of a false-color image or for a color image. In the case of a color image, the relative grayscale brightness of a pixel color is used. “Normalize” means to stretch the contrast so that the dimmest color is stretched to black and the brightest color is stretched to white, with all colors in between stretched out linearly. “Histogram” means to stretch the contrast based on a histogram of how many colors are at each brightness level on input, with the goal of producing equal number of pixels in the image at each brightness level on output. This has the effect of revealing many subtle ground features.

Since:
GeoAPI 2.2
Author:
Open Geospatial Consortium, Johann Sorel (Geomatys)
See Also:
Serialized Form

Field Summary
static ContrastMethod HISTOGRAM
          Histogram enchancement.
static ContrastMethod NONE
          No enchancement.
static ContrastMethod NORMALIZE
          Normalize enchancement.
 
Method Summary
 ContrastMethod[] family()
          Returns the list of enumerations of the same kind than this enum.
static ContrastMethod valueOf(String code)
          Returns the contrast type that matches the given string, or returns a new one if none match it.
static ContrastMethod[] values()
          Returns the list of ContrastTypes.
 
Methods inherited from class CodeList
compareTo, equals, identifier, matches, name, ordinal, readResolve, toString, valueOf
 
Methods inherited from class Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

NORMALIZE

@XmlElement(value="Normalize")
public static final ContrastMethod NORMALIZE
Normalize enchancement. “Normalize” means to stretch the contrast so that the dimmest color is stretched to black and the brightest color is stretched to white, with all colors in between stretched out linearly.


HISTOGRAM

@XmlElement(value="Histogram")
public static final ContrastMethod HISTOGRAM
Histogram enchancement. “Histogram” means to stretch the contrast based on a histogram of how many colors are at each brightness level on input, with the goal of producing equal number of pixels in the image at each brightness level on output.


NONE

public static final ContrastMethod NONE
No enchancement. this is the default value.

Method Detail

values

public static ContrastMethod[] values()
Returns the list of ContrastTypes.

Returns:
The list of codes declared in the current JVM.

family

public ContrastMethod[] family()
Returns the list of enumerations of the same kind than this enum.

Specified by:
family in class CodeList<ContrastMethod>
Returns:
The codes of the same kind than this code.

valueOf

public static ContrastMethod valueOf(String code)
Returns the contrast type that matches the given string, or returns a new one if none match it.

Parameters:
code - The name of the code to fetch or to create.
Returns:
A code matching the given name.


Copyright © 1996-2014 Geotools. All Rights Reserved.