public void Process(Mat rgbaImage)
{
Log.Info(TAG, "Process rgbaImages");
Imgproc.PyrDown(rgbaImage, mPyrDownMat);
Imgproc.PyrDown(mPyrDownMat, mPyrDownMat);
Imgproc.CvtColor(mPyrDownMat, mHsvMat, Imgproc.ColorRgb2hsvFull);
Core.InRange(mHsvMat, mLowerBound, mUpperBound, mMask);
Imgproc.Dilate(mMask, mDilatedMask, new Mat());
IList <MatOfPoint> contours = new JavaList <MatOfPoint>();
Imgproc.FindContours(mDilatedMask, contours, mHierarchy, Imgproc.RetrExternal, Imgproc.ChainApproxSimple);
// Find max contour area
double maxArea = 0;
foreach (var each in contours)
{
MatOfPoint wrapper = each;
double area = Imgproc.ContourArea(wrapper);
if (area > maxArea)
{
maxArea = area;
}
Log.Info(TAG, "Process rgbaImages\t-- Imgproc.ContourArea(wrapper)");
}
// Filter contours by area and resize to fit the original image size
mContours.Clear();
foreach (var each in contours)
{
MatOfPoint contour = each;
if (Imgproc.ContourArea(contour) > mMinContourArea * maxArea)
{
Core.Multiply(contour, new Scalar(4, 4), contour);
mContours.Add(contour);
Log.Info(TAG, "Process rgbaImages\t-- mContours.Add(contour)");
}
}
}