How to seek a frame in video using `imageio`? Question: I have a video and I would like to extract only specific frames from the video. Currently what I do is: index = [1,2,3,4,5,6,7,8] img_list = [] for i, frame in enumerate(iio.imiter("imageio:cockatoo.mp4")): if i in index: img_list.append(frame) img_array = np.asarray(img_list) Is there a way to …
Extract video frames in python using OpenCV Question: I want to break my video into frames. I am using the following code: import cv2 import numpy as np import os # Playing video from file: cap = cv2.VideoCapture(‘myvideo.mp4’) cap.set(cv2.CAP_PROP_FPS, 5) try: if not os.path.exists(‘data’): os.makedirs(‘data’) except OSError: print (‘Error: Creating directory of data’) currentFrame = …
Find mean and sd of red and blue colour values in video Question: I have video files that I can convert into RGB space withcv2.cvtColor(frame, cv2.COLOR_BGR2RGB) for each frame. I then want to calculate the mean value and standard deviation of red and blue colour values, averaged and sd’ed over a 100sec period. My videos …
Concatenate 2 videos into 1 using Python Question: I want to write a program that monitors and tracks objects in 2 different videos using openCV in python (cv2). I would like to Merge the two videos into 1 video then run a program on that video to track objects. Could someone please show and explain …
Reading a video directly into Numpy with PyAV (no iterations) Question: Is it possible to read a video directly into a 3D Numpy with PyAV? Currently, I am looping through each frame: i = 0 container = av.open(‘myvideo.avi’) for frame in container.decode(video=0): if i == 0: V = np.array(frame.to_ndarray(format=’gray’)) else: V = np.dstack((V, np.array(frame.to_ndarray(format=’gray’)))) i …
How to save a video using OpenCV VideoWriter to a specific directory — python Question: I am trying to save a video in a specific folder. but after running the code no output is saved. Could anyone help? Thanks. cap = cv2.VideoCapture(file_paths[0]) fgbg = cv2.bgsegm.createBackgroundSubtractorMOG() fourcc = cv2.VideoWriter_fourcc(*’XVID’) name = “C:jupyter_projectsTest FolderIntention datasetbackground_subtractedout.mp4” out = …
How to convert video on python to .mp4 without ffmpeg? Question: I need to convert videos to .mp4 format I used to ffmpeg but it converts for too long. Is there are a way to convert video to .mp4 in python without ffmpeg? Asked By: Max || Source Answers: UPD moviepy depends on ffmpeg too …
How to extract slides from a video using python Question: I have a video training course supplied as AVI files. Most of the screens are shown as slides with a mouse pointer moving around on them. I’d like to capture a screenshot of the slide automatically when the screen changes (ignoring when the image changes …
