Method fht2ps

ij/src/main/java/ij/process/FHT.java:462–469

Power Spectrum of one row from 2D Hartley Transform.

(int row, int maxN, float[] fht, float[] ps)

	/** Power Spectrum of one row from 2D Hartley Transform. */
 	private void fht2ps(int row, int maxN, float[] fht, float[] ps) {
 		int base = row*maxN;
		int l;
		for (int c=0; c<maxN; c++) {
			l = ((maxN-row)%maxN) * maxN + (maxN-c)%maxN;
			ps[base+c] = (sqr(fht[base+c]) + sqr(fht[l]))/2f;
 		}
	}

	/** Converts this FHT to a complex Fourier transform and returns it as a two slice stack.
	*	Author: Joachim Wesner