ucar.jpeg.icc.lut
Class LookUpTable32LinearSRGBtoSRGB

java.lang.Object
  ucar.jpeg.icc.lut.LookUpTable
      ucar.jpeg.icc.lut.LookUpTable32LinearSRGBtoSRGB

public class LookUpTable32LinearSRGBtoSRGB
extends LookUpTable

A Linear 32 bit SRGB to SRGB lut

Version:

1.0

Author:

Bruce A. Kern

Field Summary

protected int	dwMaxOutput Maximum output value of the LUT
int[]	lut the lut values.

Fields inherited from class ucar.jpeg.icc.lut.LookUpTable

curve, dwNumInput, eol

Constructor Summary

protected

LookUpTable32LinearSRGBtoSRGB(int inMax, int outMax, double shadowCutoff, double shadowSlope, double scaleAfterExp, double exponent, double reduceAfterExp) Construct the lut

Method Summary

static ucar.jpeg.icc.lut.LookUpTable32	createInstance(ICCCurveType curve, int dwNumInput, int dwMaxOutput) Factory method for getting a 32 bit lut from a given curve.
static LookUpTable32LinearSRGBtoSRGB	createInstance(int inMax, int outMax, double shadowCutoff, double shadowSlope, double scaleAfterExp, double exponent, double reduceAfterExp) Factory method for creating the lut.
int	elementAt(int index) lut accessor
String	toString() Create an abbreviated string representation of a 16 bit lut.
String	toStringWholeLut() Create the string representation of a 32 bit lut.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

dwMaxOutput

protected final int dwMaxOutput

Maximum output value of the LUT

lut

public final int[] lut

the lut values.

Constructor Detail

LookUpTable32LinearSRGBtoSRGB

protected LookUpTable32LinearSRGBtoSRGB(int inMax,
                                        int outMax,
                                        double shadowCutoff,
                                        double shadowSlope,
                                        double scaleAfterExp,
                                        double exponent,
                                        double reduceAfterExp)

Construct the lut

Parameters:

wShadowCutoff - size of shadow region

dfShadowSlope - shadow region parameter

ksRGBLinearMaxValue - size of lut

ksRGB8ScaleAfterExp - post shadow region parameter

ksRGBExponent - post shadow region parameter

ksRGB8ReduceAfterExp - post shadow region parameter

Method Detail

createInstance

public static LookUpTable32LinearSRGBtoSRGB createInstance(int inMax,
                                                           int outMax,
                                                           double shadowCutoff,
                                                           double shadowSlope,
                                                           double scaleAfterExp,
                                                           double exponent,
                                                           double reduceAfterExp)

Factory method for creating the lut.

Parameters:

wShadowCutoff - size of shadow region

dfShadowSlope - shadow region parameter

ksRGBLinearMaxValue - size of lut

ksRGB8ScaleAfterExp - post shadow region parameter

ksRGBExponent - post shadow region parameter

ksRGB8ReduceAfterEx - post shadow region parameter

Returns:

the lut

toString

public String toString()

Create an abbreviated string representation of a 16 bit lut.

Returns:

the lut as a String

toStringWholeLut

public String toStringWholeLut()

Create the string representation of a 32 bit lut.

Returns:

the lut as a String

createInstance

public static ucar.jpeg.icc.lut.LookUpTable32 createInstance(ICCCurveType curve,
                                                             int dwNumInput,
                                                             int dwMaxOutput)

Factory method for getting a 32 bit lut from a given curve.

Parameters:

curve - the data

dwNumInput - the size of the lut

dwMaxOutput - max output value of the lut

Returns:

the lookup table

elementAt

public final int elementAt(int index)

lut accessor

Parameters:

index - of the element

Returns:

the lut [index]