我试图尝试收集图像使用开放的简历，但问题是，它给了我Assert失败，其中它未能捕捉帧。第一帧捕获成功，但后续帧捕获失败。
我的代码：

import cv2
import uuid
import os
import time

imagesPath = "Tensorflow/workspace/images/collectedimages"

if not os.path.exists(imagesPath):
    os.makedirs(imagesPath)
    
labels = ['hello', 'thankyou', 'yes', 'no', 'iloveyou']
numberImages = 20

for label in labels:
    labelPath = os.path.join(imagesPath, label)
    
    if not os.path.exists(labelPath):
        os.makedirs(labelPath)
        
    cap = cv2.VideoCapture(0)
    print("Collecting images for {}".format(label))
    for num in range(numberImages):
        ret, frame = cap.read()
        print("ret:", ret)
        imageName = os.path.join(imagesPath, label, label + "." + "{}.jpg".format(str(uuid.uuid1())))
        print("imageName:", imageName)
        cv2.imwrite(imageName,frame)
        cv2.imshow('captureImages',frame)
        time.sleep(2)
        
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break
        cap.release()

字符串
下面是输出和错误：

Collecting images for hello
ret: True
imageName: Tensorflow/workspace/images/collectedimages\hello\hello.701b06f0-24a3-11ee-8d31-0068eb8c6ae0.jpg
ret: False
imageName: Tensorflow/workspace/images/collectedimages\hello\hello.717b980e-24a3-11ee-87ef-0068eb8c6ae0.jpg
---------------------------------------------------------------------------
error                                     Traceback (most recent call last)
Cell In[9], line 14
     12 imageName = os.path.join(imagesPath, label, label + "." + "{}.jpg".format(str(uuid.uuid1())))
     13 print("imageName:", imageName)
---> 14 cv2.imwrite(imageName,frame)
     15 cv2.imshow('captureImages',frame)
     16 time.sleep(2)

error: OpenCV(4.6.0) C:\b\abs_d8ltn27ay8\croot\opencv-suite_1676452046667\work\modules\imgcodecs\src\loadsave.cpp:801: error: (-215:Assertion failed) !_img.empty() in function 'cv::imwrite'

型
回答并找到解决我问题的方法