Get video dimension in python-opencv
It gives width
and height
of file or camera as float
(so you may have to convert to integer
)
But it always gives me 0.0 FPS
.
import cv2vcap = cv2.VideoCapture('video.avi') # 0=camera if vcap.isOpened(): # get vcap property width = vcap.get(cv2.cv.CV_CAP_PROP_FRAME_WIDTH) # float `width` height = vcap.get(cv2.cv.CV_CAP_PROP_FRAME_HEIGHT) # float `height` # or width = vcap.get(3) # float `width` height = vcap.get(4) # float `height` # it gives me 0.0 :/ fps = vcap.get(cv2.cv.CV_CAP_PROP_FPS)
It seems it can works fps = vcap.get(7)
but I checked this only on one file.
EDIT 2019: Currently cv2
uses little different names
cv2.CAP_PROP_FRAME_WIDTH # 3cv2.CAP_PROP_FRAME_HEIGHT # 4cv2.CAP_PROP_FPS # 5cv2.CAP_PROP_FRAME_COUNT # 7
but they have the same values: 3
, 4
, 5
, 7
import cv2#vcap = cv2.VideoCapture(0) # built-in webcameravcap = cv2.VideoCapture('video.avi')if vcap.isOpened(): width = vcap.get(cv2.CAP_PROP_FRAME_WIDTH) # float `width` height = vcap.get(cv2.CAP_PROP_FRAME_HEIGHT) # float `height` # or width = vcap.get(3) # float `width` height = vcap.get(4) # float `height` print('width, height:', width, height) fps = vcap.get(cv2.CAP_PROP_FPS) # or fps = vcap.get(5) print('fps:', fps) # float `fps` frame_count = vcap.get(cv2.CAP_PROP_FRAME_COUNT) # or frame_count = vcap.get(7) print('frames count:', frame_count) # float `frame_count` #print('cv2.CAP_PROP_FRAME_WIDTH :', cv2.CAP_PROP_FRAME_WIDTH) # 3 #print('cv2.CAP_PROP_FRAME_HEIGHT:', cv2.CAP_PROP_FRAME_HEIGHT) # 4 #print('cv2.CAP_PROP_FPS :', cv2.CAP_PROP_FPS) # 5 #print('cv2.CAP_PROP_FRAME_COUNT :', cv2.CAP_PROP_FRAME_COUNT) # 7
EDIT 2020: All properties in How do I get usb webcam property IDs for OpenCV
For the 3.3.1 version, the methods have changed. Check this link for the changes: https://docs.opencv.org/3.3.1/d4/d15/group__videoio__flags__base.html#ga023786be1ee68a9105bf2e48c700294d
Instead of cv2.cv.CV_CAP_PROP_FRAME_WIDTH
use cv2.CAP_PROP_FRAME_WIDTH
and others as necessary from the link above.