BoundingRect Java to C++

Technical Programming
1

Hey CD,
I am working on calculating the centerX for gear vision tracking.

I want 2 separate rect objects with each vision rectangle.
I found this in java.


Rect rect1 = Imgproc.boundingRect(contours.get(1));

On C++ I can not find any functions for .get.

2

The contours are stored in a vector in C++, so you can just access them with normal index notation, i.e. [1].

3

So,


boundingRect r1 = contours(0);?

I tried doing this with a mat object but got a openCV assertion failed error. I think it was because I tried inputting a Mat instead of a vector point object. Would I need to put or change the syntax?

4

I get this error


 assertion failure (points.checkVector(2) >= 0 && (points.depth() == CV_23F || points.depth() == CV_32S)) in cv::boundingRect...).

From what I have researched, apparently there is an uninitialized variable.

5

Something like this should work:

Rect r = boundingRect(contours[0]);