我有一段代码用于匹配电影片段和参考图像之间的特征。它通常工作得很好,但有时会在片段中间抛出错误。由于它总是在相同的片段,并且在相同的时间发生,我猜测它尝试分析的帧存在问题。
我的代码:
cap = cv2.VideoCapture(clip_file)
img1 = cv2.imread(ref_image,0)
while(cap.isOpened()):
# read the frame and convert to gray-scale
ret, frame = cap.read()
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
# Initiate ORB detector
orb = cv2.ORB_create()
# find the keypoints and descriptors with ORB
kp1, des1 = orb.detectAndCompute(img1,None)
kp2, des2 = orb.detectAndCompute(gray,None)
# FLANN parameters
FLANN_INDEX_LSH = 6
index_params= dict(algorithm = FLANN_INDEX_LSH,
table_number = 6, # 12
key_size = 12, # 20
multi_probe_level = 1) #2
search_params = dict(checks=50) # or pass empty dictionary
flann = cv2.FlannBasedMatcher(index_params,search_params)
matches = flann.knnMatch(des1,des2,k=2)
cv2.imshow('img3',frame)
它在剪辑播放过程中有时会抛出错误:
Traceback (most recent call last):
File "movie_test.py", line 81, in <module>
flann_movie('data/movie.avi','data/ref.jpg')
File "movie_test.py", line 35, in flann_movie
matches = flann.knnMatch(des1,des2,k=1)
cv2.error: OpenCV(3.4.2) C:\projects\opencv-
python\opencv\modules\flann\src\miniflann.cpp:317: error: (-5:Bad
argument) Only continuous arrays are supported in function
'cv::flann::buildIndex_'
欢迎提供关于错误原因的任何建议,感谢您的帮助。