hue_picker.py 文件源码

def cb_pt(self, msg):
        self.pt = int(msg.y), int(msg.x)
        # print self.pt
        if self.image is None:
            print "NO IMAGE"
            return

        img  = self.bridge.imgmsg_to_cv2(self.image)            
        hsv_img = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)
        vals = hsv_img[self.pt]
        self.pts.append(vals)

        pts = np.array(self.pts)
        min_thresh = np.min(pts, axis=0).tolist()
        max_thresh = np.max(pts, axis=0).tolist()
        print "thresholds: %s, %s " %(min_thresh, max_thresh)

# rospy.init_node("huepicker")