/**
* get the kernel for sigma.
*
* <p>To create the x-axis for the kernel:
*
* <pre>
* int halfWidthInPixels = kernel.length >> 1;
* int[] x = new int[kernel.length];
* for (int i = 0; i < x.length; i++) {
* x[i] = i + (int) (mu - halfWidthInPixels);
* }
* </pre>
*
* @param sigma
* @return
*/
public static float[] getKernel(SIGMA sigma) {
if (sigma.ordinal() == SIGMA.ZEROPOINTFIVE.ordinal()) {
return getBinomialKernelSigmaZeroPointFive();
} else if (sigma.ordinal() == SIGMA.ZEROPOINTSEVENONE.ordinal()) {
return getBinomialKernelSigmaZeroPointSevenOne();
} else if (sigma.ordinal() == SIGMA.ONE.ordinal()) {
return getBinomialKernelSigmaOne();
} else if (sigma.ordinal() == SIGMA.ONESQRT2.ordinal()) {
return getBinomialKernelSigmaOneSQRT2();
} else if (sigma.ordinal() == SIGMA.ONEPOINTFIVE.ordinal()) {
return getBinomialKernelSigmaOnePointFive();
} else if (sigma.ordinal() == SIGMA.TWO.ordinal()) {
return getKernelSigmaTwo();
} else if (sigma.ordinal() == SIGMA.TWOSQRT2.ordinal()) {
return getKernelSigmaTwoSQRT2();
} else if (sigma.ordinal() == SIGMA.THREE.ordinal()) {
return getKernelSigmaThree();
} else if (sigma.ordinal() == SIGMA.FOUR.ordinal()) {
return getKernelSigmaFour();
} else if (sigma.ordinal() == SIGMA.FOURSQRT2.ordinal()) {
return getKernelSigmaFourSQRT2();
} else if (sigma.ordinal() == SIGMA.EIGHT.ordinal()) {
return getKernelSigmaEight();
} else {
return getKernel(SIGMA.getValue(sigma));
}
}
protected static float[] getBinomialKernel(SIGMA sigma) {
if (sigma.ordinal() == SIGMA.ZEROPOINTFIVE.ordinal()) {
return getBinomialKernelSigmaZeroPointFive();
} else if (sigma.ordinal() == SIGMA.ZEROPOINTSEVENONE.ordinal()) {
return getBinomialKernelSigmaZeroPointSevenOne();
} else if (sigma.ordinal() == SIGMA.ONE.ordinal()) {
return getBinomialKernelSigmaOne();
} else if (sigma.ordinal() == SIGMA.ONESQRT2.ordinal()) {
return getBinomialKernelSigmaOneSQRT2();
} else if (sigma.ordinal() == SIGMA.ONEPOINTFIVE.ordinal()) {
return getBinomialKernelSigmaOnePointFive();
} else {
return null;
}
}