How to perform a union operation in java opencv

Question

I need to write an equivalent Java OpenCV code as this C++ code

Mat1b mask1, mask2;
inRange(hsv, Scalar(0, 70, 50), Scalar(10, 255, 255         


        

Answer 1

Union operator, logic-or (|) for two matrix of the OpenCV:

Code in C++:

inRange(hsv, Scalar(0, 70, 50), Scalar(10, 255, 255), mask1);
inRange(hsv, Scalar(170, 70, 50), Scalar(180, 255, 255), mask2);

Mat mask = mask1 | mask2; 

Code in Java:

Mat mask1 = new Mat();
Mat mask2 = new Mat();
Core.inRange(hsv, new Scalar(0, 70, 50), new Scalar(10, 255, 255), mask1);
Core.inRange(hsv, new Scalar(170, 70, 50), new Scalar(180, 255, 255), mask2);

Mat mask= new Mat();
Core.bitwise_or(mask1, mask2, mask);

Code in Python:

mask1 = cv2.inRange(hsv, (0, 70, 50), (10, 255, 255))
mask2 = cv2.inRange(hsv, (170, 70, 50), (180, 255, 255))
mask = cv2.bitwise_or(mask1, mask2)