Video made up from grayscale images using opencv, shows a fraction of frames and lines-CodePudding

I have a sequence of grayscale images. using python code of opencv, I made a video out of these grayscale images.

import cv2
import numpy as np
A = readimages(img_path) # A is a list of uint8 images of size similar to framesize
framesize = (480,640)
out = cv2.VideoWriter('output_video.avi',cv2.VideoWriter_fourcc('M','J','P','G'), 30.0, framesize, isColor = False)
for img in A:
    out.write(cv2.flip(img,0))
out.release()

the resultant video as shown in the image below (left part) just shows a fraction of the input images along with multiple lines. any help please.

CodePudding user response：

In this case, the images dtype must uint8, before writing into video file. The new code works fine.

import cv2
import numpy as np
A = readimages(img_path) # A is a list of uint8 images of size similar to framesize
framesize = (480,640)
out = cv2.VideoWriter('output_video.avi',cv2.VideoWriter_fourcc('M','J','P','G'), 30.0, framesize, isColor = False)
for img in A:
    out.write(img.astype('uint8'))
out.release()