Opencv extract specific frames from video 1 My question is: Can I extract image frames from a large number of videos all at once using OpenCV Python and save it in a folder in the form of . I’m using opencv to do a specific job of cutting thumbs from video streams, then processing those thru several different AI systems. Frames aren't necessarily in sequential order and are loaded when the user moves a slider, or when the applicat Dec 5, 2020 · I’m trying to crop a video, using Python 3+, by reading it frame-by-frame and write certain frames to a new video. I have established connection to the web camera, using the script below. mp4’) target frame = 1000 … cv. Say for example you have a video-file VideoIn. VideoCapture(" Oct 5, 2021 · In this post we extract and save the video frames using OpenCV in Python. I wanted to save frames 21 to 24 in an array that I could later convert to a video file. By generating image frames, we can have a larger dataset, fine-tune our model, and evaluate its performance, leading to improved results. VideoCapture('myvideo. mp4' vidcap = cv2. mkv') rval, frame = f. We discuss reading videos from file, image sequence, and webcam using OpenCV and also their syntax and options. Jan 22, 2019 · I am trying to open a video file and play it frame by frame using key presses. Performance: Video's are big, frames are too. So let’s begin! The goal of the tutorial We aim to extract each frame from a single video file with the help of the OpenCV module of the Python programming language. pythonCopy code import cv2 Mar 23, 2012 · I have a . I have a 120fps video and want to extract all of them. I'm trying to read specific frames from a video file (video. But it shows an error of TypeError: Can’t convert object to ‘str’ for ‘filename’ Here is my code to extract the individual frame te… Oct 15, 2018 · In this tutorial, I will show you how to extract and save frames from a video file. 5. In this Answer, we'll discuss a method to achieve this using Python and the OpenCV library. Here is what I want. VideoCapture() Read frame by … Sep 29, 2023 · I’m trying to read specific frames from a video file (video. 1. ---This video is ba You can use the video file attached in the resources and extract the frame shown at . Learn how to work with video data, annotate frames, and create annotated videos using Python and OpenCV. By using OpenCV, all the frames that compose a video file can be extracted by executing imwrite () function till the end of video. MoviePy - A Python module for video editing, which can be used for basic operations, such as frame extraction, video compositing and video processing. My first question is, if the video capture input is a live Jun 29, 2025 · Learn how to extract video frames using OpenCV—understand frame width, height, FPS, total frames, save all frames to a folder, and capture a specific frame by timestamp for precise video processing 1 day ago · Getting Started with Videos Goal Learn to read video, display video, and save video. These times are in microseconds. This tool also allows us to deep dive into artificial intelligence, machine learning, and computer vision. So to extract EXIF data, you can use an alternative image processing library for Python, which is very popular, called Nov 23, 2024 · Learn how to extract the total number of frames and key properties from video files using OpenCV in Python. The Tutorial will be of around 6 minutes and would be enough to upgrade your skillset This Video is a part FrameText Extractor is an open-source tool for optimized text extraction (OCR) from videos. A video is a series of images organized in an order, and each image in a video is called a frame. VideoCapture("plane. OpenCV (Open Source Computer Vision Library) is a powerful, open-source tool for handling Nov 17, 2025 · Media optimization, computer vision, and automation all rely on the fundamental process of extracting frames from videos. This guide walks you through the process step-by-step!---This video is Sep 27, 2021 · Hey all, I have looked but don’t see any solid answers for this. See here for a demonstration of what I think you're trying to do, and the arguments to give ffmpeg to do so. cv as cv import time from scipy import * import numpy import sys, os, random Is it possible to read frames from a video in steps (eg I want to read every fifth frame of a video stream). mp4') cap. Dec 13, 2024 · Video frames are essentially snapshots of videos at specific intervals. Mar 23, 2020 · I am trying to extract frames from multiple video files in a for loop, using OpenCV. So, buckle up and let’s dive in! Jul 20, 2019 · I'm trying to extract specific chryons from videos of Overwatch games so I can OCR them and store stats. Hey Buddy, in this video I have explained how to Extract Images/ Frames from any Video. Below are different methods based on these libraries: Nov 13, 2020 · Difference Between Frames and KeyFrames Now let’s see how can get frames and keyframes from a video. For image metadata (called "EXIF"): OpenCV will discard image metadata; for instance, cv2. Learn to capture video from a camera and display it. For example, if there is a video and it has total 200 frames and I want to extract some specific parts of video say from frame 15 to 30, 50 to 79, etc. The repository includes clear instructions and necessary dependencies like OpenCV. As we all know, video data contains a set of still images arranged in a sequence. Jan 7, 2013 · To achieve this I have to get the last single frame from the video that is just being written to. jpg ? Hi! I want to extract a few very specific frames out of a VideoCapture Stream that has been created from a file. Mar 16, 2020 · I need to read a yuv video file, extract individual frames from it, convert it to grayscale and then calculate Lucas Kanade optical flow between adjacent frames. The text can vary between black and white and can mix in the same timestamp. imread('bear. 9. grab () until I reach the specific frame (timestamp) I want. Learn how to extract specific frames of a video into separate videos using OpenCV in Python, complete with code examples and explanations. Image Analysis is a very common field in the area of Computer Vision. NET, OpenCV (Emgu. Through popular libraries like OpenCV, developers can process videos at incredible speeds, allowing for seamless Mar 30, 2024 · Reading specific frames from a video using OpenCV and Python is a straightforward process. Take note that it extracts frames using either In this article, we have presented the approach to Extract frames from a video using OpenCV. GitHub Gist: instantly share code, notes, and snippets. It is the extraction of meaningful information from videos or images. Which one to choose is situation-dependent and it is usually best to use the one you are already more familiar with. Prerequisites are Chapter 1 and 2. Currently I'm doing this as a workaround but it's not very effecient. Jul 2, 2021 · I want to break my video into frames. Oct 16, 2023 · Hello, I have a question about the following OpenCV code for reading videos. read () cv2. Get the tool to extract flawless video frames in 1 May 16, 2015 · What I want to do is to put a video as input and extract from it a frame every second keeping the original size and saving all the frames into a folder. I am a beginner in OpenCV. 8. I am struggling to use Nov 30, 2021 · I’m trying to read a video (60 fps) within a custom range [t_ {start} - t_ {end}] and since not every timestamp is documented in my data, I need to extract frames every . VideoWriter () Capture Video from Camera Often, we have to capture live stream with a camera. I have a 120fps video Windows frame extraction tool to easly extract all the frames from a video or only a video sequence. For Dec 13, 2019 · Recently, I was working on a program to sample N frames from a source video, and then assign a score to each frame (from 0 to 1) in terms of thumbnail-worthiness. I have used frame2im command but its not working. Is it possible? Feb 13, 2016 · I'm trying to make an app that use the camera to record a video and process the images of the video. Here's how I would do it using VideoCapture: In this post, we will learn how to extract images from the video at a given time in Python using OpenCV. split ('. extractFrames(srcPath,dstPathColor) However, When I want to extract grayscale image ( extractFrames(srcPath,dstPathColor,gray=True ), only one image is written to destination folder and code stops import numpy as np import May 2, 2021 · 1 I have a video and I want to obtain specific parts of that video using frame numbers and save them. First, my app records a 10 second video with Torch. Second, I use a method to Discover how to extract video frames at a specific FPS value using Python and OpenCV. The way I currently use it, I take the total frames, divide by number of CPUs in the system and then process the video as 12 (current CPU count) threads. mpeg and time be Feb 15, 2019 · I want to extract constant number of frames 'n' from multiple length of video using Python and opencv. mkv) using OpenCV's Cuda Video Reader, similar to how I would with the CPU-based VideoCapture. Feb 8, 2021 · In this video, we are going to build a simple python program that will help us to extract frames from a video or a set of videos. 100% private, browser-based tool. We’ll use the powerful OpenCV library to handle video processing tasks seamlessly. OpenCV provides a very simple interface to do this. OpenCV, with its rich set of functions and efficient algorithms, provides an accessible and robust framework for this task. But how I can access directly any frame by its index? In other words, if I want second frame, how can I access directly the second frame without calling read() two times? May 8, 2017 · I use the following code to extract a specific frame from a video file. You can also use moviepy, opencv, or imageio approaches. If Ever wondered how to extract the last frame from a video using Python? Whether you’re working with video files or video bytes, this tutorial will guide you through the process step by step. It allows users to download videos from YouTube or process local video files and extract frames at intervals. Extract frames from video using OpenCV. By understanding the underlying principles and techniques, developers can leverage OpenCV . mp4') Nov 23, 2024 · Is it possible to extract a specific frame from a video using the VideoCapture() method in OpenCV? If you are working with video data and need to access individual frames strategically, this question is crucial for your workflow. This can be useful for a variety of purposes, such as creating a thumbnail gallery of a video, analyzing the content of a video frame by frame, or training a machine learning model on video data. . Aug 8, 2025 · Learn how to read video frames in Python using OpenCV with practical examples. E. What would be the best approach using OpenCV? Feb 19, 2019 · I need to extract a specific sequence of frames from video, for example I want to extract every 10th frame for example (frame_1,frame_10,frame_20,). I just want to read the available frames and write them in a directory. I've read this question , but the solution is for capturing current frame. Here’s how I would do it using VideoCapture: Sep 21, 2023 · Up to here, we have learned: extracting all frames from a video extracting key-frames from a video by using histogram-based techniques Let’s look at another approach to extracting key-frames of a video. In this tutorial, we’ll be building a video frame extractor using Python Mar 19, 2024 · How to convert a video into a sequence of images using opencv and python. I set a cv2. Extract frames from videos instantly. VideoCapture function to capture the video and Jan 31, 2024 · I have a series of videos that contain timestamp in a specific ROI which I have already found. Nov 4, 2015 · I have the following code, which continuously fetches all the frames from a video by using VideoCapture library in opencv in python: import cv2 def frame_capture: cap = cv2. This video shows how to extract frames from a video file and save the frames into high-resolution images. With Python, developers can efficiently handle video processing, enabling tasks like object detection, scene analysis, and machine learning dataset creation. For my research, I analyze high-speed videos of insects flying. One of the most time consuming parts of my pipeline is unpacking a video into frames (1 / sec) and then cropping the images into two overlapping squares for feeding into my neural network. Nov 16, 2025 · Whether you're analyzing motion, building a dataset, or just capturing the perfect frame, you're not alone—almost 93% of the global population online are watching videos, and processing that content is more important than ever. My current code is: import cv2 cap = cv2. It combines OpenCV, Pillow, and Tesseract to extract text from individual video frames, using multithreading to improve processing performance. I have tried to follow the documentation and online tutorials of how to do it correctly and have now tested two approaches: 1) The first method is brute force reading each frame using the video. It has similarities to the OpenCV version but is faster, cleaner, and simpler. Extracting images from a video allows for a better understanding of the frames that are offered in May 25, 2021 · Hello, there fellow learner! Today we will be learning how to extract images from video using the Python OpenCV module. This repository offers two versions of a video frame extraction utility: one for local use and another for Google Colab with Google Drive integration. We have covered the steps involved in extracting frames from a single video and applying the process to multiple videos. Learn how to extract and save frames from videos using Python and OpenCV. avi') This is my reference tutorial. Fortunately, with the power of Python and OpenCV, you can automate this process with just a few lines of code. 2 seconds. 2, cudNN 7. In current scenario, techniques such as image scanning, face recognition can be accomplished using OpenCV. OpenCV and Matplotlib libraries are installed. 4. Jul 22, 2019 · FFMPEG has the ability to extract all frames from a video and save them as images, it also can extract frames at a lower frame rate than the source video. Is there a faster way to do it than this: ffmpeg -i file. This kind of data also plays a Oct 14, 2024 · You can extract and save video frames with Python using FFMpeg approach which is the fastest. Oct 28, 2024 · Extracting Images from Video with OpenCV: An In-Depth Guide The process of extracting individual frames or images from a video stream is a fundamental operation in computer vision. I get the specific sections from a . It also includes a feature for text correction using a language model. NET Winform application and i need to show specific frames of a video file. How to do that using opencv with Python? Extracting custom frames per second from a Video using opencv-python Madan&Tech 61 subscribers Subscribed Aug 2, 2022 · Below code me to extract individual frame from the video, I just wanted to make a new video file from frame 21 to 24. Mar 30, 2022 · 0 I want to read from a specific frame to a specific frame in a video. Using OpenCV, we can read video files and save each frame as a separate image. Jul 6, 2015 · I am trying to get at specific frame from a video file using OpenCV 2. Opening a video with OpenCV After first importing OpenCV as usual, all we need to open a video file is the name of a video file and the VideoCapture function: import cv2 video = cv2. 32, Video_Codec_SDK_12. To process this kind of data we have to read video extract frames and save them as images. # Let's see Sep 27, 2018 · I want to save the frames of video at certain time intervals using python opencv module. We use these them to capture video, extract and save the frames. 6. set(1, 2) #2- the second frame of my video res, 45 I have recorded several videos from the front cam of my tablet with an Android 5. The utility should write out jpeg images from the video with the given input. I'm using below code but it extracts all f Jul 23, 2025 · There are two libraries you can use: OpenCV and ImageIO. If you want, at the end you can stitch the frames back together into a video that can be used as a video preview or trailer. With OpenCV I'm able to get the framerate for each video: Nov 28, 2023 · Read Video Files Now we are ready to analyze a video file using OpenCV. OpenCV provides the VideoCapture() function. avi but what should i do now extract frames? below is the code i written so far that got my video playing: # This project demonstrates two methods of extracting frames from a video using Python: OpenCV - A computer vision library that provides more control and better quality for frame extraction. Frame rate is the number of frames shown in a video per second. This article shows you how to access frames at a specific time within a video file using OpenCV. Nov 11, 2015 · Is there a way to get a specific frame using VideoCapture() method? My current code is: import numpy as np import cv2 cap = cv2. With OpenCV in Python, we can capture each frame sequentially from a video file or camera stream and save them as separate image files. I'm using cv2. How to extract frames from a video using opencv and pythonCode: https://drive. Before long, it became apparent that decoding video frames was one performance bottleneck. Aug 27, 2019 · OpenCV is a library of functions that allow us to quickly perform computer vision tasks (e. Aug 5, 2022 · Possible duplicate of In Python/OpenCV is there a way to quickly scroll through frames of a video, allowing the user to select the start and end frame to be processed? Feb 7, 2023 · The OpenCV library provides a simple and efficient way to extract frames from videos and prepare them for training a deep learning model. Is there some one who can help me get started on that? I have the following code: import cv2. imwrite ('first_frame. In this post, I would look into different ways of reading video frames with OpenCV and then speeding it up with multithreading. CAP_PROP_POS_FRAMES, start Hi All, I'm trying to extract the first frame of a sample video file with OpenCV however it doesnt work: import cv2 f = cv2. Aug 15, 2019 · Below is an example script of how to extract frames using decord. But this "Python OpenCV extract frame at specific time" Description: Users searching with this query are likely looking for Python code snippets using OpenCV to extract frames at specific times from videos. bool bSuccess int Feb 27, 2019 · First, a definition: By keyframes, I mean frames in which the encoder has written all pixels instead of just the diff pixels. g. CV), or FFmpeg libraries. Extracting key-frames by using a machine learning model: Now, it is time to learn to extract the key-frames by using feature vectors of the Learn how to extract frames from videos using Python and OpenCV. The following code from opencv lets me convert for every 10 capturing of the frames but I need the timestamp of each frame in the video. Jun 19, 2018 · Hi, I'm following a tutorial to extract video frames. 13. imshow( 1000th frame of video ) PyVideoFramesExtractor: Extract frames from videos in Python using OpenCV Extract frames from a single video file or from all video files under a given directory (including all its sub-directories). I want to do some image processing on the frames of a video which is being uploaded to my server. Nov 6, 2025 · In the world of computer vision and video analysis, extracting specific frames from a video is a fundamental task. ') # With webcam get (CV_CAP_PROP_FPS) does not work. 2 application I have written. Mar 19, 2024 · executor. This guide covers step-by-step methods to split videos into frames, extract specific Oct 29, 2015 · Google the instructions for your specific version of opencv and follow precisely on how to get ffmpeg and opencv-python working on Windows. I have written the following code where it works well for extracting color images. High-speed video cameras record more frames per second (for this example video, 900 frames per second) than regular cameras and then put those images together in Apr 19, 2020 · Here’s some example of how to use OpenCV to extract frames and issues you’ll find in OpenCV-Android Example Here I’m using VideoCapture to read video file in Android phone directory. Sep 7, 2017 · video = cv2. Unfortunately each video has a different framerate (ranging from 20 to 30). I have saved using OpenCV in four formats png, bmp, jpg, tif The code is as below file = "video. Now I would like to take out a couple of frames that can be analyzed. Jul 11, 2022 · Was wondering if there is a simple way to grab a specific frame from a video file. Apr 21, 2021 · Extract a set of images (frames) from your video that are evenly spaced throughout using FFMPEG and Python. VideoCapture (), cv. 0 with Cuda 10. VideoCapture (file) # Find OpenCV version (major_ver, minor_ver, subminor_ver) = (cv2. For example, in Adobe Premiere Pro you can specify the maximum number of frames between "Key Frames" in the export UI here: Further research, here and here, leads me to believe that these are called "I Frames" or "I-Frames". If I use the code repeatedly I will get next frames. Sometimes data to be processed can be in the form of video. Sep 9, 2023 · In this interactive blog, we’ll explore how to break down videos into individual frames and give each frame a timestamp using Python. Jul 23, 2025 · Images are very important data nowadays from which we can obtain a lot of information which will helpful for analysis. So it would open and show a single frame indefinitely until a particular key is pressed and then it would switch to the next frame. __version__). We have VideoCapture() , read() , isOpened() , imwrite() and many more to play with the video and video frames. Create professional annotated videos for analysis and machine learning. Dec 26, 2023 · Conclusion In this tutorial, we have learned how to extract frames from videos using Python and the OpenCV library. My task is to make a utility that can take a video and time in seconds. Prerequisites Before diving into the code, ensure to have the following: Python is installed on the system. jpg', Jul 2, 2018 · 8 I want to convert video into the frames before feeding it to the classification model. The current way of doing it is to iterate trough the entire video and when we get to a desired frame we extract it a process it. For example , my video consists of 150 frames, but I want to read the video from frame 5th to frame 134th in that video. So I need frames on every unique timestamp converted from video here timestamp is the seconds in the video. avi") cap. Mar 1, 2022 · Eventually I would use Python and module cv (OpenCV) because it can read frame by frame (probably using ffmpeg) from video file (or webcam, or stream) and save frame as image. Steps: Open the Video file or camera using cv2. avi with 10000 frames, and you want to extract frames 100->500 into output video VideoOut1. May 24, 2021 · Learn Reading and Writing Videos using OpenCV. We will save each frame in a folder in our file system. read() cv2. You will learn these functions : cv. 88 seconds. How can I automatically get images of specific areas of a video frame every second? I'm using python ffmpeg and opencv right now but open to other technologies. Aug 17, 2022 · I have been trying to work on individual frame to extract text from individual frame. Free online tool to convert videos to frames. jpg') will produce a 3-dimensional numpy array of pixel intensities (the third dimension being the R,G,B channels). OpenCV provides us many different types of the methods to perform on the images. Everytime I extract a frame however, I want to feed it back into another VideoCapture, for two reasons: VideoCapture's make it really easy to navigate through a video and read invidual frames. What I’m imagining is something like: vid = cv. Mar 25, 2023 · A video frame extractor is a program that extracts individual frames from a video and saves them as separate image files. I am using the following code: import cv2 import numpy as np import os # Playing video from file: cap = cv2. let the video name be abc. VideoCapture ('1. Learn how to extract frames from a video using OpenCV in Python. But I do not think of algorithms. json file where the start and end frames are stored according to labels, like 'cat in video', 'dog in video'. In this example, I'm simply getting the middle frame: import cv2 video_path = '/tmp/wonderwall. png? I have written an OpenCV Python code which extracts image frames from 1 video when I provide the video path of that video as the input. Feb 22, 2022 · 2 I have a bunch of videos for which I want to extract specific sections (either as videos or as frames). Sep 29, 2023 · I've compiled OpenCV 4. Extracting frames from a video using OpenCV in Python can be a useful technique for a variety of applications, such as object detection, motion analysis, or video editing. In this guide, you'll learn how to capture images from videos using OpenCV. VideoCapture(‘filename. Come and code with me to extract the frames of your video! May 5, 2021 · I am trying to extract images (frames) from a video and save them at a specific location. 88 which is in the hh:mm:ss format. We will use the cv. A video is nothing but a sequence of frames and each frame is an image. I was initially using mp4 videos an Nov 1, 2023 · Step 2: Frame Extraction First, we need to extract individual frames from our videos. Aug 11, 2025 · Extracting individual frames from a video is a fundamental task in video processing. OpenCV is an open-source package that allows us to work on video, images, and frames. If you simply want to save a video as a frame-by-frame still imag Jan 4, 2023 · OpenCV comes with many powerful video editing functions. Capture single images, save frames as separate images, and handle long videos during the extraction process. 14, and am running it on Python 3. MP4" video = cv2. Discover the basics of video files, extract metadata, iterate through frames, and add annotations. For a project, I want to extract unique/distinctive frames from youtube videos. Feb 25, 2022 · Level up your programming skills with exercises across 52 languages, and insightful discussion with our dedicated team of welcoming mentors. How can I grab only these frames? ret, frame = cap. If I were to keep every single of the This video will explain "How to extract frames from video using OpenCV python?" Nov 12, 2015 · Tutorial on how to find frame rate or frames per second (fps) in a video using OpenCV. I figure this must be something a lot of people deal with so, thought I'd Learn how to extract frames at specific timestamps from videos using Python and automation techniques. My Idea is: Input Video Feb 12, 2021 · In this post, we are going to learn and build a python program where we are going to extract and save frames from videos using the OpenCV library. A Python project to capture multiple frames from a video file or YouTube URL using OpenCV and yt-dlp. Is there a way to get only the last frame (or any other single frame for that matter) from the video file without loading all the frames into memory first? The video is saved as single frame bitmaps, so decoding should not be a problem. Easily extract and save frames for video processing, analysis, and projects. I have to divide the video file into 40 images. VideoCapture('video. I tried filtering based on cosine similarity but this took forever and did not really work so well. Sep 22, 2012 · Hi everyone! How can I extract frames of a video in matlab if I have used mmreader to read the video. In other words, you need to extract the frame shown after 1. Apr 29, 2021 · Python OpenCV: Splitting video into frames Introduction In this tutorial we will learn how to split a video into frames, using Python and OpenCV. CAP_PROP_F Jan 28, 2013 · I am quite new to OpenCV and would like to know what is the best approach to cut selected ranges of frames from a video-file. Python and C++ code is provided for practice and study. I've read this question, it doesn't work, also queationfrom Open CV Answer, but the solution is for capturing current frame. Jun 19, 2018 · I'm following a tutorial to extract video frames. VideoCapture in python to seek to and capture a frame every second, then using PIL to crop the image into two squares. Easy step-by-step guide for customized frame extraction. Making two different methods to extract frames from videos with the timestamp with OpenCV or MoviePy libraries in Python. Security camera videos we have seen that there is a timestamp and date at top of the frame. read() The code reads the first frame. I’m working on a project that involves processing frames from a video using this code. Oct 19, 2022 · This article describes how to capture and save frames from video files such as mp4 and avi as still image files with OpenCV in Python. Manually scrubbing through a video to find that one perfect frame can be tedious. submit(extract_frames, video_path, frames_dir, overwrite, f[0], f[1], every) Is it necessary to implement a function for the as_completed pass, or I can skip this point since my extract_frames has no return values? Apr 24, 2019 · I am trying to change a pixel in a specific video frame using OpenCV in Python. For video metadata, use ffmpeg as Martin Drohmann says. With this knowledge, you can now use extracted frames for various tasks, such as video classification and What is the fastest way to get all the frames from a video file? Python Forum Python Coding General Coding Help Thread Rating: 1 2 3 4 5 Users browsing this thread: 1 Guest (s) View a Printable Version Today, we are going to extract the frames in a video using OpenCV in Python. I need only frames from specific times. This guide will walk you through the simple steps to extract specific frames from any video file, giving you precise control over your multimedia content. google I am just getting started on using OpenCV using Python, and I will work with video. After learning how to split a video into individual frames, we will also check how to apply some processing over each frame. Jun 9, 2012 · Hi I need to extract frames from videos using ffmpeg. 11. I have found several ways online to do frame extraction from a single video, however I am struggling to run the I have videos I need to grab frames of and store as png images. VideoCapture(video_path) status, frame = video. and I want to save each of these parts separately. Extract high-quality image sequences from MP4, MOV, WebM and more without uploading to any server. set(cv2. This method is slow if the specific frame is late in the video Feb 9, 2025 · You can extract frames from a video in C# using the AForge. I have a task that involves detecting these Oct 2, 2020 · I want to save the images extracted from the video without losing any information, resolution and quality. making a picture black and white, canny edge, face recognition, …). avi. VideoCapture( Feb 26, 2025 · Reading a video file requires processing each frame individually, and displaying or storing it. Attached picture for example of what areas of the frame I want to get. It allows users to extract frames from videos at specified intervals and save them locally or in the cloud. From what I understand, when the video capture input is a video file, it processes the first frame before moving to the next one, resulting in a delay between frames. Feb 3, 2023 · I have a program that extracts every n-th frame of a video. mpg -r 1/1 $filename%03d. By using the VideoCapture class and the set () method, we can easily extract frames at specific positions or intervals. Is there a technique to filter out the redundant/duplicate frames from a video and only keep one of every unique frame? Learn how to extract and save frames from any video using OpenCV in just 6 minutes! Step-by-step tutorial in Python. Extracting images or frames from a video can be an essential task for several purposes like data analysis, object detection, and content creation. Hey peeps so far i manage OpenCV to play a video. avi, and frames 7000->8000 into output video VideoOut2. VideoCapture('sample. Whether you’re building a video summarization tool, training an object detection model, creating thumbnails, or analyzing motion patterns, the ability to pull out key frames is invaluable. I have stored the start timestamp in milliseconds (Unix time) for each video. mkv) using OpenCV’s Cuda Video Reader, similar to how I would with the CPU-based VideoCapture. For image-based machine learning tasks, splitting videos into frames provides a wealth of data to train robust models. jpg or . Extract All the Frames and Save them.