Hi. I am trying to extract and save 3 random frames from the middle third of video files in a directory. I started with this crude code (I know it is poorly written) . I could figure the number of total frames, the range of the middle 3rd of frames, and saving every nth number from that range. First issue is that random.sample gives an error to even begin to get a random image. The second all that works for a single video file when I need multiples (each to its own directory) I appreciate any help. Thank you
Hi. I am trying to extract and save 3 random frames from the middle third of video files in a directory. I started with this crude code (I know it is poorly written) . I could figure the number of total frames, the range of the middle 3rd of frames, and saving every nth number from that range. First issue is that random.sample gives an error to even begin to get a random image. The second all that works for a single video file when I need multiples (each to its own directory) I appreciate any help. Thank you
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Hi. I am trying to extract and save 3 random frames from the middle third of video files in a directory. I started with this crude code (I know it is poorly written) . I could figure the number of total frames, the range of the middle 3rd of frames, and saving every nth number from that range. First issue is that random.sample gives an error to even begin to get a random image. The second all that works for a single video file when I need multiples (each to its own directory) I appreciate any help. Thank you
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8 length
int(cv2.VideoCapture.get(cap, property_id))
9 print('Number of frames is: ,length)
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import cv2
import os
import random
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vidcap cv2.VideoCapture('SampleVideo_1280x720_10mb.mp4')
cap cv2.VideoCapture("SampleVideo_1280x720_10mb.mp4")
property_id = int(cv2.CAP_PROP_FRAME_COUNT)
=
X
int(length/3)
print('Frame begining at the second third is ', X, 'th')
Y = 2*X
print('Frame at the end of second third is ', Y, 'th')
print('From the ', X, 'th frame to the ', Y, 'the frame, we exreact every 20th frame' )
=
success, image vidcap.read()
count =
images
[]
path
'C:/Users/user/Desktop/get_3/images'
while success and count < (Y-X):
#cv2.imwrite(os. path. join(path 'waka.jpg'), img)
#cv2.imwrite(os.path.join(path, "frame%d.jpg" % count, image))
start_frame_number)
"frame%d.jpg" % count), image)
#cv2.imwrite("frame%d.jpg" % count, image) #save frame as JPEG file
#success, image
=
vidcap.read()
print('Read a new frame: ', success)
count += 20
#images_random
start_frame_number
success, image
=
vidcap.set(cv2.CAP_PROP_POS_FRAMES,
X
vidcap.read()
=
cv2.imwrite(os.path.join(path,
images.applend (image)
random.sample(images, 3)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1a505583-b612-46db-b366-0394caaecd49%2F061dfa05-5cf6-423b-8f44-9a20530f36ac%2Frdjcji_processed.png&w=3840&q=75)
Transcribed Image Text:1
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main67
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8 length
int(cv2.VideoCapture.get(cap, property_id))
9 print('Number of frames is: ,length)
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11
12
13
27
28
29
30
31
import cv2
import os
import random
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vidcap cv2.VideoCapture('SampleVideo_1280x720_10mb.mp4')
cap cv2.VideoCapture("SampleVideo_1280x720_10mb.mp4")
property_id = int(cv2.CAP_PROP_FRAME_COUNT)
=
X
int(length/3)
print('Frame begining at the second third is ', X, 'th')
Y = 2*X
print('Frame at the end of second third is ', Y, 'th')
print('From the ', X, 'th frame to the ', Y, 'the frame, we exreact every 20th frame' )
=
success, image vidcap.read()
count =
images
[]
path
'C:/Users/user/Desktop/get_3/images'
while success and count < (Y-X):
#cv2.imwrite(os. path. join(path 'waka.jpg'), img)
#cv2.imwrite(os.path.join(path, "frame%d.jpg" % count, image))
start_frame_number)
"frame%d.jpg" % count), image)
#cv2.imwrite("frame%d.jpg" % count, image) #save frame as JPEG file
#success, image
=
vidcap.read()
print('Read a new frame: ', success)
count += 20
#images_random
start_frame_number
success, image
=
vidcap.set(cv2.CAP_PROP_POS_FRAMES,
X
vidcap.read()
=
cv2.imwrite(os.path.join(path,
images.applend (image)
random.sample(images, 3)
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