救命，这道python做数据处理题怎么做？

来源：蜘蛛抓取(WebSpider) 时间：2023-06-18 03:08 标签： python做数据处理
我试图利用MediaPipe通过网络摄像头进行实时手势识别。但是，我想使用gesture_recognizer.task模型进行推理。下面是我的代码：import cv2
import mediapipe as mp
from mediapipe.tasks import python
from mediapipe.tasks.python import vision
model_path = "gesture_recognizer.task"
base_options = python.BaseOptions(model_asset_path=model_path)
GestureRecognizer = mp.tasks.vision.GestureRecognizer
GestureRecognizerOptions = mp.tasks.vision.GestureRecognizerOptions
GestureRecognizerResult = mp.tasks.vision.GestureRecognizerResult
VisionRunningMode = mp.tasks.vision.RunningMode
def print_result(result: GestureRecognizerResult, output_image: mp.Image, timestamp_ms: int):
print('gesture recognition result: {}'.format(result))
options = GestureRecognizerOptions(
base_options=python.BaseOptions(model_asset_path=model_path),
running_mode=VisionRunningMode.LIVE_STREAM,
result_callback=print_result)
recognizer = GestureRecognizer.create_from_options(options)
mp_drawing = mp.solutions.drawing_utils
mp_hands = mp.solutions.hands
hands = mp_hands.Hands(
static_image_mode=False,
max_num_hands=2,
min_detection_confidence=0.65,
min_tracking_confidence=0.65)
cap = cv2.VideoCapture(0)
while True:
ret, frame = cap.read()
if not ret:
break
i = 1
# left or right hand
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
results = hands.process(frame)
frame = cv2.cvtColor(frame, cv2.COLOR_RGB2BGR)
np_array = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
if results.multi_hand_landmarks:
for hand_landmarks in results.multi_hand_landmarks:
h, w, c = frame.shape
mp_drawing.draw_landmarks(frame, hand_landmarks, mp_hands.HAND_CONNECTIONS)
mp_image = mp.Image(image_format=mp.ImageFormat.SRGB, data=np_array)
results = recognizer.recognize_async(mp_image)
# show the prediction on the frame
cv2.putText(mp_image, results, (10, 50), cv2.FONT_HERSHEY_SIMPLEX,
1, (0,0,255), 2, cv2.LINE_AA)
cv2.imshow('MediaPipe Hands', frame)
if cv2.waitKey(1) & 0xFF == 27:
break
cap.release()我在cv2.putText(mp_image, results, (10, 50), cv2.FONT_HERSHEY_SIMPLEX, 1, (0,0,255), 2, cv2.LINE_AA)行上得到一个NameError: name 'mp_image' is not defined错误。到现在我真的很困惑，不确定我在做什么，更不用说我做错了什么。救命啊！

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