frame.shape NameError: name ‘frame’ is not defined
python 471
原文标题 ：frame.shape NameError: name ‘frame’ is not defined
我对Python一窍不通，但是我有一份工作需要处理，所以我需要实现一些功能。下面是我的代码。当我运行Python时，
回溯（最后一次调用）：文件“C:\Users\user\Desktop\bodypix\bodypix.py”，第 80 行，在 frame.shapeNameError：未定义名称“frame”
此错误已检查。为什么会出现此错误？如果您知道如何解决此问题，我将非常感谢您的帮助。
import tensorflow as tf
from tf_bodypix.api import download_model, load_model, BodyPixModelPaths
import cv2
from matplotlib import pyplot as plt
import numpy as np
# # 2. Detections
# In[2]:
load_model(download_model(BodyPixModelPaths.MOBILENET_FLOAT_50_STRIDE_16))
# In[3]:
bodypix_model = load_model(download_model(BodyPixModelPaths.MOBILENET_FLOAT_50_STRIDE_16))
# In[27]:
# get vid cap device
cap = cv2.VideoCapture(0)
# loop through frame
while cap.isOpened():
ret, frame = cap.read()
# BodyPix Detections
result = bodypix_model.predict_single(frame)
mask = result.get_mask(threshold=0.5).numpy().astype(np.uint8)
masked_image = cv2.bitwise_and(frame, frame, mask=mask)
# Show result to user on desktop
cv2.imshow('BodyPix', masked_image)
# Break loop outcome
if cv2.waitKey(10) & 0xFF == ord('q'):
break
cap.release() # Releases webcam or capture device
cv2.destroyAllWindows() # Closes imshow frames
# # 3. Add Virtual Background
# In[12]:
img = cv2.imread('beach.jpg')
img = img[:480, :640, :]
# In[13]:
plt.imshow(cv2.cvtColor(img, cv2.COLOR_BGR2RGB))
# In[14]:
img.shape
# In[15]:
frame.shape
# In[24]:
plt.imshow(mask)
# In[23]:
plt.imshow(np.where(np.add(mask, -1) == -1, 1, np.add(mask, -1)))
# In[ ]:
# get vid cap device
cap = cv2.VideoCapture(0)
# loop through frame
while cap.isOpened():
ret, frame = cap.read()
# BodyPix Detections
result = bodypix_model.predict_single(frame)
mask = result.get_mask(threshold=0.5).numpy().astype(np.uint8)
masked_image = cv2.bitwise_and(frame, frame, mask=mask)
# Apply virtual background
neg = np.add(mask, -1)
inverse = np.where(neg==-1, 1, neg).astype(np.uint8)
masked_background = cv2.bitwise_and(img, img, mask=inverse)
final = cv2.add(masked_image, masked_background)
# Show result to user on desktop
cv2.imshow('BodyPix', final)
# Break loop outcome
if cv2.waitKey(10) & 0xFF == ord('q'):
break
cap.release() # Releases webcam or capture device
cv2.destroyAllWindows() # Closes imshow frames
