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Author Archives: jdriselvato
AETAS//ONE
After some important life changes I rather not get into I found myself wondering if the new responsibilities would replace my ability to continue creating. I spent six months pondering the idea and at the start of October I took … Continue reading
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The Pre-Raphaelite Brotherhood, Ophelia, and Life
Seven days from now I will turn thirty and in the last hours of my twenties I sit with a few regrets. I wish I didn’t waste my youth not finding my kin. I did not attend university, which left … Continue reading
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Installing Katago in Sabaki 2 for MacOS (2021)
Install Sabaki 2 Get download link from this website, get the latest release. Install Katago In terminal: brew install katago Just to make sure this worked, type katago in terminal to ensure you see the same: Usage: katago SUBCOMMAND —Common … Continue reading
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(FFmpeg) How to Generate a Color Palette From a Video and apply it to another?
Ever look at a video with an amazing color grading and wish you could copy it? Getting that look can be accomplished using the palettegen filter. palettegen generates a single palette for an entire video stream and saves it as … Continue reading
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Tagged FFmpeg
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(FFmpeg) How to Remove All Colors Except One From a Video?
FFmpeg has a filter called colorhold with documentation that states: Remove all color information for all RGB colors except for [a] certain one. This is incorrect, colorhold does not work this way… well not exactly. It removes colors but it’s … Continue reading
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Tagged FFmpeg
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(FFmpeg) How to Apply a Vignette to a Video?
A vignette is a fade that is added to the edges of an input. It’s a simple way to add atmosphere or emulate vintage television sets. A vignette can be added without additional parameters as seen in figure 62.0: The … Continue reading
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Tagged FFmpeg
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(FFmpeg) How to RGB Shift a Video?
RBG shifting is one of the coolest and easiest effects for emulating 3D or add that Vaporwave Aesthetics. With rgbashift, the RGBA pixels can freely shift horizontally and/or vertically. In this example, a red horizontal shift is applied to create … Continue reading
(FFmpeg) How to Invert the Colors of a Video?
FFmpeg has a very simple filter, negate, that inverts the colors of the input. The train station looks really futuristic with this filter on. Although this filter is simplistic in use, it has a great effect, below is the command … Continue reading
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Tagged FFmpeg
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(FFmpeg) How to Edit the Saturation of a Video?
Although the hue filter has a saturation variable, FFmpeg also has another filter called vibrance which is used to adjust the color intensity. Both filters give slightly different saturation effects but each has its place. In this example, all colors … Continue reading
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Tagged FFmpeg
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(FFmpeg) How to extract screenshots from multiple parts of a video (one-liner)?
This question was asked on the FFmpeg Discord. For some reason the person pinged me to answer it so I took a stab at it. Here was the request: @jdriselvato Hey, I’ve got a question if something is even possible. … Continue reading
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Tagged FFmpeg
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