gesture.py 文件源码

def _get_tip_position(array, contour, verbose = False):
    approx_contour = cv2.approxPolyDP(contour, 0.08 * cv2.arcLength(contour, True), True)
    convex_points  = cv2.convexHull(approx_contour, returnPoints = True)

    cx, cy     = 999, 999

    for point in convex_points:
        cur_cx, cur_cy = point[0][0], point[0][1]

        if verbose:
            cv2.circle(array, (cur_cx, cur_cy), 4, _COLOR_GREEN,4)

        if (cur_cy < cy):
            cx, cy = cur_cx, cur_cy

    (screen_x, screen_y) = pyautogui.size()

    height, width, _ = array.shape
    x = _round_int((float(cx))/(width-0)*(screen_x+1))
    y = _round_int((float(cy))/(height-0)*(screen_y+1))
    return (array, (x, y))