cam.py 文件源码

def draw_delaunay(im, subdiv, delaunay_color):

    triangleList = subdiv.getTriangleList()
    size = im.shape
    r = (0, 0, size[1], size[0])

    for t in triangleList:

        pt1 = (t[0], t[1])
        pt2 = (t[2], t[3])
        pt3 = (t[4], t[5])

        if rect_contains(r, pt1) and rect_contains(r, pt2) and rect_contains(r, pt3):

            cv2.line(im, pt1, pt2, delaunay_color, 1, cv2.CV_AA, 0)
            cv2.line(im, pt2, pt3, delaunay_color, 1, cv2.CV_AA, 0)
            cv2.line(im, pt3, pt1, delaunay_color, 1, cv2.CV_AA, 0)

# Check if a point is inside a rectangle