如何使用Mediapipe Pose更改输出视频上跟踪点和连接线的颜色？

import mediapipe as mp
import cv2

mp_pose = mp.solutions.pose
pose = mp_pose.Pose()

cap = cv2.VideoCapture('input_video.mp4')  # 或者使用摄像头：cap = cv2.VideoCapture(0)

while cap.isOpened():
    ret, frame = cap.read()
    if not ret:
        break
    
    # 将图像转换为RGB格式
    frame_rgb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
    
    # 处理图像并获取姿势估计结果
    results = pose.process(frame_rgb)
    
    # 检查是否成功检测到姿势
    if results.pose_landmarks:
        # 绘制跟踪点和连接线
        mp_pose.draw_landmarks(frame, results.pose_landmarks, mp_pose.POSE_CONNECTIONS,
                               landmark_drawing_spec=mp_drawing_styles.get_default_pose_landmarks_style(),
                               connection_drawing_spec=mp_drawing_styles.get_default_pose_connections_style())
    
    # 显示处理后的帧
    cv2.imshow('MediaPipe Pose', frame)
    
    # 按下'q'键退出循环
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

# 创建自定义的DrawingSpec对象
landmark_drawing_spec = mp_drawing_styles.DrawingSpec(color=(255, 0, 0), thickness=2, circle_radius=2)
connection_drawing_spec = mp_drawing_styles.DrawingSpec(color=(0, 255, 0), thickness=2, circle_radius=1)

# 在绘制跟踪点和连接线时使用自定义的DrawingSpec对象
mp_pose.draw_landmarks(frame, results.pose_landmarks, mp_pose.POSE_CONNECTIONS,
                       landmark_drawing_spec=landmark_drawing_spec,
                       connection_drawing_spec=connection_drawing_spec)

import mediapipe as mp
import cv2

mp_pose = mp.solutions.pose
mp_drawing_styles = mp.solutions.drawing_styles

pose = mp_pose.Pose()

cap = cv2.VideoCapture('input_video.mp4')

while cap.isOpened():
    ret, frame = cap.read()
    if not ret:
        break
    
    frame_rgb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
    
    results = pose.process(frame_rgb)
    
    if results.pose_landmarks:
        landmark_drawing_spec = mp_drawing_styles.DrawingSpec(color=(255, 0, 0), thickness=2, circle_radius=2)
        connection_drawing_spec = mp_drawing_styles.DrawingSpec(color=(0, 255, 0), thickness=2, circle_radius=1)
        
        mp_pose.draw_landmarks(frame, results.pose_landmarks, mp_pose.POSE_CONNECTIONS,
                               landmark_drawing_spec=landmark_drawing_spec,
                               connection_drawing_spec=connection_drawing_spec)
    
    cv2.imshow('MediaPipe Pose', frame)
    
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()