class ContrastEnhancement extends RasterSymbolizer
A ContrastEnhancement is a Symbolizer used to style Rasters by modifying the contrast.
You can create a ContrastEnhancement using the normalize method:
def c = new ContrastEnhancement("normalize")
Or you can create a ContrastEnhancement using the normalize histogram method and a gamma value:
def c = new ContrastEnhancement("histogram", 0.5)
| Fields inherited from class | Fields |
|---|---|
class Symbolizer |
filterFactory, styleBuilder, styleFactory, styleOptions, title |
| Type | Name and description |
|---|---|
Expression |
gammaValueThe gamma value |
java.lang.String |
methodThe method: Normalize or Histogram |
| Constructor and description |
|---|
ContrastEnhancement(java.lang.String method, java.lang.Object gammaValue)Create a new ContrastEnhancement |
| Type Params | Return Type | Name and description |
|---|---|---|
|
protected void |
apply(Symbolizer sym)Apply this Symbolizer to the GeoTools Symbolizer |
|
protected ContrastEnhancement |
createContrastEnhancement()Create a GeoTools ContrastEnhancement |
|
protected void |
prepare(Rule rule)Prepare the GeoTools Rule by applying this Symbolizer |
|
java.lang.String |
toString()The string representation |
| Methods inherited from class | Name |
|---|---|
class RasterSymbolizer |
apply, geometry, opacity, overlap, prepare, setGeometry, setOpacity, setOverlap, toString |
class Symbolizer |
and, apply, asSLD, asSLD, buildString, composite, createGeoToolsSymbolizer, getDefault, getDefault, getGeoToolsSymbolizers, getGtStyle, getSld, getTitle, plus, prepare, prepare, range, range, sortBy, sortBy, title, where, zindex |
The gamma value
The method: Normalize or Histogram
Create a new ContrastEnhancement
method - The methodgammaValue - The gamma valueApply this Symbolizer to the GeoTools Symbolizer
sym - The GeoTools SymbolizerCreate a GeoTools ContrastEnhancement
Prepare the GeoTools Rule by applying this Symbolizer
rule - The GeoTools RuleThe string representation
Groovy Documentation