How to draw ellipse with first python function ?

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I found that axes (as well as center) has to be an integers tuple, not floats. Pretty hard to figure out by the error message OpenCV gives...

How to use float in this case my script is using float

    image = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)
    features = []

    # grab the dimensions and compute the center of the image
    (h, w) = image.shape[:2]
    (cX, cY) = (int(w * 0.5), int(h * 0.5))

    # divide the image into four rectangles/segments (top-left,
    # top-right, bottom-right, bottom-left)
    segments = [(0, cX, 0, cY), (cX, w, 0, cY), (cX, w, cY, h),
        (0, cX, cY, h)]

    # construct an elliptical mask representing the center of the
    # image
    (axesX, axesY) = (int(w * 0.75) / 2, int(h * 0.75) / 2)
    ellipMask = np.zeros(image.shape[:2], dtype = "uint8")
    cv2.ellipse(ellipMask, (cX, cY), (axesX, axesY), 0, 0, 360, 255, -1)