public List<FastRetinaKeypoint> ProcessImage(FastBitmap fastBitmap) {
if (fastBitmap.isGrayscale()) {
grayImage = new FastBitmap(fastBitmap);
} else {
grayImage = new FastBitmap(fastBitmap);
grayImage.toGrayscale();
}
// 1. Extract corners points from the image.
List<FastRetinaKeypoint> features = new ArrayList<FastRetinaKeypoint>();
if (Detector != null) {
List<IntPoint> corners = Detector.ProcessImage(grayImage);
for (int i = 0; i < corners.size(); i++)
features.add(new FastRetinaKeypoint(corners.get(i).x, corners.get(i).y));
} else {
List<FeaturePoint> corners = FDetector.ProcessImage(grayImage);
for (int i = 0; i < corners.size(); i++)
features.add(new FastRetinaKeypoint(corners.get(i).x, corners.get(i).y));
}
// 2. Compute the integral for the given image
integral = IntegralImage.FromFastBitmap(grayImage);
// 3. Compute feature descriptors if required
descriptor = null;
if (featureType != FastRetinaKeypointDescriptorType.None) {
descriptor = GetDescriptor();
descriptor.Compute(features);
}
return features;
}
public FastRetinaKeypointDescriptor GetDescriptor() {
if (descriptor == null || pattern == null) {
if (pattern == null) pattern = new FastRetinaKeypointPattern(octaves, scale);
descriptor = new FastRetinaKeypointDescriptor(grayImage, integral, pattern);
descriptor.setExtended(featureType == FastRetinaKeypointDescriptorType.Extended);
}
return descriptor;
}
