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Category: Computer Vision

Image to Video to Image using FFMpeg

Image to Video to Image using FFMpeg

In this post, I’ll demonstrate how to take a series of images and convert them into a video. I’ll also demonstrate how to convert a video into a series of images, were we can do some interesting things. Lets start with image to video conversion. For this example I’ll be using images that have been scrapped from the web for the past year. I run a script that downloads a new image every 5 minutes. As it downloads them, the…

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FFMpeg Time Lapse and Slow Motion

FFMpeg Time Lapse and Slow Motion

Interpolation doesn’t just slow down, speed up, or increases FPS for better overall appearance. It fills in the gaps between frames by mathematically guessing were pixels belong between each frame. Here is a source clip that I’ll be processing. This command increases a 18 second segment from 30 FPS to 120 FPS ffmpeg -ss 00:47:08 -i 201207140948.MOV -t 00:00:18 -c copy 201207140948_Seg.MOV ffmpeg -i 201207140948_Seg.MOV -vf minterpolate=fps=120 201207140948_Seg_120fps.MOV The results look the same at first glance, but when viewed intently,…

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Picture in Picture Video with FFMPeg

Picture in Picture Video with FFMPeg

Creating a video with a smaller thumbnail video inside is known as a picture in picture effect.  I’ve used other video editors in the past to merge various camera views together to give a more complete experience.  In this post I’ll cover how to use FFMpeg to do the same thing.  It expands the idea of tiled video, were multiple cameras share equal amounts of screen space.  Thumbnails offer flavoring for the main camera view.  I’m going to step by…

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