gui_4.py 文件源码

def draw_circle( event, x,y,flags, param):
    global ix, iy, drawing, mode

    if event == cv2.EVENT_LBUTTONDOWN:
        drawing = True
        ix, iy = x, y
    elif event == cv2.EVENT_MOUSEMOVE:
        if drawing == True:
            if mode == True:
                cv2.rectangle( img, (ix, iy), (x,y),(0,255,0), 1)  # -1 for last argument like CV_FILLED
            else:
                cv2.circle( img, (x,y), 5, (0,0,255), -1)
    elif event == cv2.EVENT_LBUTTONUP:
        drawing = False
        if mode == True:
            cv2.rectangle( img, (ix, iy), (x,y), (0,255,0), 1)
        else:
            cv2.circle(img, (x,y), 5, (0,0,255),-1)