Method FHTimag

ij/src/main/java/ij/process/FHT.java:507–513

FFT imag value of one row from 2D Hartley Transform. Author: Joachim Wesner

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

	*	Author: Joachim Wesner
	*/
      void FHTimag(int row, int maxN, float[] fht, float[] imag) {
            int base = row*maxN;
            int offs = ((maxN-row)%maxN) * maxN;
            for (int c=0; c<maxN; c++) {
                  imag[base+c] = (-fht[base+c] + fht[offs+((maxN-c)%maxN)])*0.5f;
            }
      }

	ImageProcessor calculateAmplitude(float[] fht, int maxN) {
   		float[] amp = new float[maxN*maxN];