// Test the methods
/*
* z = [139 144 149 153 155 155 155 155;
* 144 151 153 156 159 156 156 156;
* 150 155 160 163 158 156 156 156;
* 159 161 162 160 160 159 159 159;
* 159 160 161 162 162 155 155 155;
* 161 161 161 161 160 157 157 157;
* 162 162 161 163 162 157 157 157;
* 162 162 161 161 163 158 158 158];
*
* octave:55> x = dct(z)
* x =
* 436.99 444.06 448.31 452.19 452.19 443 443 443
* -21.818 -14.969 -9.3908 -6.4728 -5.921 -1.7745 -1.7745 -1.7745
* -8.8097 -7.5031 -7.3446 -4.6522 -1.2737 -0.46194 -0.46194 -0.46194
* -2.4118 -3.7457 -3.9958 -3.0683 -1.4969 -1.7704 -1.7704 -1.7704
* 0.70711 -0.70711 -0.70711 -2.4749 0.35355 0.35355 0.35355 0.35355
* 1.365 0.22465 0.90791 0.57409 -1.7777 1.2224 1.2224 1.2224
* -0.94311 -1.4843 0.74614 0.77897 -2.1512 -0.19134 -0.19134 -0.19134
* -1.8165 -1.685 0.14561 2.9764 0.20231 -2.3922 -2.3922 -2.3922
*
* octave:56> idct(x)
* ans =
* 139 144 149 153 155 155 155 155
* 144 151 153 156 159 156 156 156
* 150 155 160 163 158 156 156 156
* 159 161 162 160 160 159 159 159
* 159 160 161 162 162 155 155 155
* 161 161 161 161 160 157 157 157
* 162 162 161 163 162 157 157 157
* 162 162 161 161 163 158 158 158
*/
public static void test()
{
double[][] vals = new double[][] {
new double[] { 139.0, 144.0, 149.0, 153.0, 155.0, 155.0, 155.0, 155.0 },
new double[] { 144.0, 151.0, 153.0, 156.0, 159.0, 156.0, 156.0, 156.0 },
new double[] { 150.0, 155.0, 160.0, 163.0, 158.0, 156.0, 156.0, 156.0 },
new double[] { 159.0, 161.0, 162.0, 160.0, 160.0, 159.0, 159.0, 159.0 },
new double[] { 159.0, 160.0, 161.0, 162.0, 162.0, 155.0, 155.0, 155.0 },
new double[] { 161.0, 161.0, 161.0, 161.0, 160.0, 157.0, 157.0, 157.0 },
new double[] { 162.0, 162.0, 161.0, 163.0, 162.0, 157.0, 157.0, 157.0 },
new double[] { 162.0, 162.0, 161.0, 161.0, 163.0, 158.0, 158.0, 158.0 }
};
DctMethods.PrintMatrix(vals);
DctComirva dctCom = new DctComirva(vals.Length, vals[0].Length);
// dct
double[][] dctVals = dctCom.dct(vals);
DctMethods.PrintMatrix(dctVals);
// idct
double[][] idctVals = dctCom.idct(dctVals);
DctMethods.PrintMatrix(idctVals);
}
// Test the methods
/*
z = [139 144 149 153 155 155 155 155;
144 151 153 156 159 156 156 156;
150 155 160 163 158 156 156 156;
159 161 162 160 160 159 159 159;
159 160 161 162 162 155 155 155;
161 161 161 161 160 157 157 157;
162 162 161 163 162 157 157 157;
162 162 161 161 163 158 158 158];
octave:55> x = dct(z)
x =
436.99 444.06 448.31 452.19 452.19 443 443 443
-21.818 -14.969 -9.3908 -6.4728 -5.921 -1.7745 -1.7745 -1.7745
-8.8097 -7.5031 -7.3446 -4.6522 -1.2737 -0.46194 -0.46194 -0.46194
-2.4118 -3.7457 -3.9958 -3.0683 -1.4969 -1.7704 -1.7704 -1.7704
0.70711 -0.70711 -0.70711 -2.4749 0.35355 0.35355 0.35355 0.35355
1.365 0.22465 0.90791 0.57409 -1.7777 1.2224 1.2224 1.2224
-0.94311 -1.4843 0.74614 0.77897 -2.1512 -0.19134 -0.19134 -0.19134
-1.8165 -1.685 0.14561 2.9764 0.20231 -2.3922 -2.3922 -2.3922
octave:56> idct(x)
ans =
139 144 149 153 155 155 155 155
144 151 153 156 159 156 156 156
150 155 160 163 158 156 156 156
159 161 162 160 160 159 159 159
159 160 161 162 162 155 155 155
161 161 161 161 160 157 157 157
162 162 161 163 162 157 157 157
162 162 161 161 163 158 158 158
*/
public static void test() {
double[][] vals = new double[][] {
new double[] { 139.0, 144.0, 149.0, 153.0, 155.0, 155.0, 155.0, 155.0 },
new double[] { 144.0, 151.0, 153.0, 156.0, 159.0, 156.0, 156.0, 156.0 },
new double[] { 150.0, 155.0, 160.0, 163.0, 158.0, 156.0, 156.0, 156.0 },
new double[] { 159.0, 161.0, 162.0, 160.0, 160.0, 159.0, 159.0, 159.0 },
new double[] { 159.0, 160.0, 161.0, 162.0, 162.0, 155.0, 155.0, 155.0 },
new double[] { 161.0, 161.0, 161.0, 161.0, 160.0, 157.0, 157.0, 157.0 },
new double[] { 162.0, 162.0, 161.0, 163.0, 162.0, 157.0, 157.0, 157.0 },
new double[] { 162.0, 162.0, 161.0, 161.0, 163.0, 158.0, 158.0, 158.0 } };
DctMethods.PrintMatrix(vals);
DctComirva dctCom = new DctComirva(vals.Length, vals[0].Length);
// dct
double[][] dctVals = dctCom.dct(vals);
DctMethods.PrintMatrix(dctVals);
// idct
double[][] idctVals = dctCom.idct(dctVals);
DctMethods.PrintMatrix(idctVals);
}
