I need the explanation on boundingRect of OpenCV. I have implemented it, it works great. Is there any reference where this function is fully explained please?
The cv2.boundingRect()
function of OpenCV is used to draw an approximate rectangle around the binary image. This function is used mainly to highlight the region of interest after obtaining contours from an image.
As per the documentation there are two types of bounding rectangles:
Here a simple rectangle is drawn around the contour (ROI). As you can see in the documentation, a green rectangle is drawn around the ROI. Corresponding rectangle coordinates are obtained such that a rectangle completely encloses the contour.
cv2.minAreaRect()
function is used to highlight the
minimum rectangular area enclosing a contour.cv2.boxPoints()
obtains the 4 corner points of the obtained
rectangle.np.int0()
is done to convert the corrdinates from float
to
integer
format.