opencv视频抽帧保存图片video2pic
文章目录 opencv视频抽帧保存图片video2pic opencv视频按帧率抽帧 opencv视频按帧数抽帧
opencv视频按帧率抽帧
import cv2
import os
video_path= 'C:/Users/Desktop/video/1.mp4'
name= os. path. basename( video_path) . split( "." ) [ 0 ]
output_dir_folder = 'C:/Users/Desktop/pic/'
output_folder= os. path. join( output_dir_folder, name)
fps = 1
if not os. path. exists( output_folder) : os. makedirs( output_folder)
cap = cv2. VideoCapture( video_path)
step = max ( 1 , int ( cap. get( cv2. CAP_PROP_FPS) / fps) )
i = 0
count= 1
while True : ret, frame = cap. read( ) if not ret: break if i % step == 0 : filename = os. path. join( output_folder, name+ f"_ { count: 03d } .jpg" ) cv2. imwrite( filename, frame) count+= 1 print ( f"Saved frame: { i} " ) i += 1
cap. release( )
opencv视频按帧数抽帧
import cv2
import time
cap = cv2. VideoCapture( 1 )
count= 0
i= 0
while ( cap. isOpened( ) ) : ret, frame = cap. read( ) if ret: if i% 10 == 0 : cv2. imwrite( "C:/Users/Desktop/0527_%s.jpg" % ( count) , frame) count+= 1 i+= 1 if cv2. waitKey( 1 ) & 0xFF == ord ( 'q' ) : break else : break
cap. release( )