corrade-vassal – Blame information for rev 1

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1 vero 1 /// <summary>**************************************************************************
2 ///
3 /// $Id: LookUpTable16Gamma.java,v 1.1 2002/07/25 14:56:46 grosbois Exp $
4 ///
5 /// Copyright Eastman Kodak Company, 343 State Street, Rochester, NY 14650
6 /// $Date $
7 /// ***************************************************************************
8 /// </summary>
9 using System;
10 using ICCCurveType = CSJ2K.Icc.Tags.ICCCurveType;
11 namespace CSJ2K.Icc.Lut
12 {
13  
14 /// <summary> A Gamma based 16 bit lut.
15 ///
16 /// </summary>
17 /// <seealso cref="jj2000.j2k.icc.tags.ICCCurveType">
18 /// </seealso>
19 /// <version> 1.0
20 /// </version>
21 /// <author> Bruce A. Kern
22 /// </author>
23 public class LookUpTable16Gamma:LookUpTable16
24 {
25  
26 /* Construct the lut
27 * @param curve data
28 * @param dwNumInput size of lut
29 * @param dwMaxOutput max value of lut
30 */
31 public LookUpTable16Gamma(ICCCurveType curve, int dwNumInput, int dwMaxOutput):base(curve, dwNumInput, dwMaxOutput)
32 {
33 double dfE = ICCCurveType.CurveGammaToDouble(curve.entry(0)); // Gamma exponent for inverse transformation
34 for (int i = 0; i < dwNumInput; i++)
35 {
36 //UPGRADE_WARNING: Data types in Visual C# might be different. Verify the accuracy of narrowing conversions. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1042'"
37 lut[i] = (short) System.Math.Floor(System.Math.Pow((double) i / (dwNumInput - 1), dfE) * dwMaxOutput + 0.5);
38 }
39 }
40  
41 /* end class LookUpTable16Gamma */
42 }
43 }