/Users/lyon/j4p/src/j2d/color/PseudoColorFilter.java
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1 /*
2 * Created by DocJava, Inc.
3 * User: lyon
4 * Date: Feb 28, 2003
5 * Time: 10:24:09 AM
6 */
7 package j2d.color;
8
9 import j2d.hpp.HppFilterInterface;
10
11
12 public class PseudoColorFilter implements
13 HppFilterInterface {
14 double params[] = {
15 0.0125,
16 0.125,
17 0.425};
18
19 public PseudoColorFilter(double ar, double ag, double ab) {
20 params[0] = ar;
21 params[1] = ag;
22 params[2] = ab;
23 }
24
25 public PseudoColorFilter() {
26 }
27
28 public short getR(int v) {
29 return getFunction(v, params[0]);
30 }
31
32 public short getG(int v) {
33 return getFunction(v, params[1]);
34 }
35
36 public short getB(int v) {
37 return getFunction(v, params[2]);
38 }
39
40 public static short getFunction(int v, double a) {
41 return (short) (255 / 2.0 * (Math.sin(a * v) + 1));
42 }
43 }
44