/** Starts the program. */
  public void runAlgorithm() {
    int[] destExtents = null;

    if (srcImage == null) {
      displayError("Source Image is null");

      return;
    }

    if (srcImage.getNDims() == 2) {
      makeKernels2D();
    } else if ((srcImage.getNDims() == 3) && (image25D == false)) {
      makeKernels3D();
    } else if ((srcImage.getNDims() == 3) && (image25D == true)) {
      makeKernels2D();
    }

    try {

      if (srcImage.getNDims() == 2) {
        destExtents = new int[2];
        destExtents[0] = srcImage.getExtents()[0]; // X dim
        destExtents[1] = srcImage.getExtents()[1]; // Y dim
      } else if (srcImage.getNDims() == 3) {
        destExtents = new int[3];
        destExtents[0] = srcImage.getExtents()[0]; // X dim
        destExtents[1] = srcImage.getExtents()[1]; // Y dim
        destExtents[2] = srcImage.getExtents()[2]; // Z dim
      }

      zXMask = new ModelImage(ModelImage.UBYTE, destExtents, " Edges");
    } catch (OutOfMemoryError e) {
      destImage = null;
      srcImage = null;
      zXMask.disposeLocal();
      zXMask = null;
      errorCleanUp("Algorithm EdgeLapSep : Out of memory", true);

      return;
    }

    if (destImage != null) { // NEW

      if (srcImage.getNDims() == 2) {
        calcStoreInDest2D(1, zeroDetectionType);
      } else if ((srcImage.getNDims() == 3) && (image25D == false)) {
        calcStoreInDest3D(zeroDetectionType);
      } else if ((srcImage.getNDims() == 3) && (image25D == true)) {
        calcStoreInDest2D(srcImage.getExtents()[2], zeroDetectionType);
      }
    }

    if (threadStopped) {
      finalize();

      return;
    }
  }