/**
* Specify internal algorithms and behavior.
*
* @param blur Initial blur applied to image.
* @param gradient Computes the image gradient.
* @param saveTrace Should it save a list of points that compose the objects contour/trace?
*/
public CannyEdge(BlurFilter<T> blur, ImageGradient<T, D> gradient, boolean saveTrace) {
this.blur = blur;
this.gradient = gradient;
Class<T> imageType = blur.getInputType().getImageClass();
blurred = GeneralizedImageOps.createSingleBand(imageType, 1, 1);
derivX = gradient.getDerivativeType().createImage(1, 1);
derivY = gradient.getDerivativeType().createImage(1, 1);
if (saveTrace) {
hysteresisPts = new HysteresisEdgeTracePoints();
} else {
hysteresisMark = new HysteresisEdgeTraceMark();
}
}
