python对视频画框标记后保存的方法
需要画框取消注释rectangle
importcv2
importos,sys,shutil
importnumpyasnp
#Opentheinputmoviefile,inputthefilepathas
input_filepath=sys.argv[1]
input_movie=cv2.VideoCapture(input_filepath)
length=int(input_movie.get(cv2.CAP_PROP_FRAME_COUNT))
#设置output
output_movie=cv2.VideoWriter(input_filepath.replace("mp4","avi").replace("input","output"),cv2.VideoWriter_fourcc('D','I','V','X'),25,(1280,720))
#Initializesomevariables
frame_number=0
whileTrue:
#Grabasingleframeofvideo
ret,frame=input_movie.read()
frame_number+=1
#Quitwhentheinputvideofileends
ifnotret:
break
#Drawaboxaroundthebody:inputthetopleftpoint(x,y)andbottomrightpoint(x,y)
#cv2.rectangle(frame,(left,top),(right,bottom),(0,0,255),2)
#Writetheresultingimagetotheoutputvideofile
print("Writingframe{}/{}".format(frame_number,length))
output_movie.write(frame)
#Alldone!
input_movie.release()
cv2.destroyAllWindows()
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