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Category: Computer Vision

FFMpeg Video Sharpening

FFMpeg Video Sharpening

It can seem magical when blurry and low detail video is refocused.  Unsharpen masks are the wizard behind the curtain and FFMpeg has this feature.  In this post I’ll give some examples of the unsharpen mask.  I won’t go into the details or mechanics of how the filter works.  This will merely be a quick how to. I’m going to be working with a 30 second clip of video that was shot during the 2012 STP bicycle classic.  It was…

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FFMpeg Video Splitting and Splicing

FFMpeg Video Splitting and Splicing

In the last post I mentioned that I used a 5 second clip from a larger video.  More often that not, large videos will contain fluff that will need to be trimmed before they are published.  There are several media editor that will do this.  I’ve used OpenShot Video Editor on my system with good results.  However, if you had tens if not hundreds of these trim functions to do, using a GUI like OpenShot would be time consuming.  Fortunately,…

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FFMpeg Video Stabilization

FFMpeg Video Stabilization

FFMpeg is a command line video processing tool that has granular, if not sub atomic controls to process audio and video data. It will do a high degree of processing and since it uses the CLI, this allows its use in the background for bulk jobs. This ability puts FFMpeg out front of other processing tools. I’ve used GUI tools like vReveal, VirtualDub, and ProDAD. vReveal was an impressive tool that allowed me to leverage CUDA which used GPUs from…

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