/**
* private static final so that compiler will inline it
*
* @param box
* @return coords
*/
private static final int[] createCoords(IRectangularROI box) {
return new int[] {
box.getIntPoint()[0],
box.getIntPoint()[1],
box.getIntPoint()[0] + box.getIntLength(0),
box.getIntPoint()[1] + box.getIntLength(1)
};
}
public void setROI(IROI ROI) {
// this.setLenPt(ROI);
firePropertyChange("ROI", this.ROI, this.ROI = ROI);
IRectangularROI bounds = ROI.getBounds();
int[] len = bounds.getIntLengths();
int[] pt = bounds.getIntPoint();
int[][] lenpt = new int[2][];
lenpt[0] = len;
lenpt[1] = pt;
firePropertyChange("ROI", this.ROI, this.ROI = ROI);
firePropertyChange("lenpt", this.lenpt, this.lenpt = lenpt);
}
/**
* @param box
* @return mean from the summed area table
*/
public double getBoxMean(IRectangularROI box) throws Exception {
if (box.getIntLength(0) % 2 == 0) throw new Exception("Box first dim is not odd!");
if (box.getIntLength(1) % 2 == 0) throw new Exception("Box second dim is not odd!");
int[] coords = createCoords(box);
int[] bx = getBox(coords);
return getBoxSumInternal(sum, coords, shape) / (bx[0] * bx[1]);
}
/**
* Give a point point, this will return the sum of a box around it. The box should really be an
* odd number such that the point is in the center
*
* @param box
* @return the sum of a box around point of shape box
* @throws Exception
*/
public double getBoxSum(IRectangularROI box) throws Exception {
if (box.getIntLength(0) % 2 == 0) throw new Exception("Box first dim is not odd!");
if (box.getIntLength(1) % 2 == 0) throw new Exception("Box second dim is not odd!");
return getBoxSumInternal(sum, createCoords(box), shape);
}
/**
* Get the variance for a given box.
*
* <p>(1/n)(S2 - S1^2/n)
*
* <p>Where: S1 is sum of box ( D+A-B-C of sum ) S2 is sum^2 of box ( D+A-B-C of sum ) n is number
* of pixels box covers
*
* @param box
* @return variance
* @throws Exception
*/
public double getBoxFanoFactor(IRectangularROI box) throws Exception {
if (box.getIntLength(0) % 2 == 0) throw new Exception("Box first dim is not odd!");
if (box.getIntLength(1) % 2 == 0) throw new Exception("Box second dim is not odd!");
if (sum2 == null) createSummedTable(image, true);
int[] coords = createCoords(box);
return getBoxFanoFactor(getBox(coords), coords);
}