In the first post of this series, I focused on the project foundations: what should I do to create a video from photos taken from the same position year after year? I dedicated the second part to aligning images. It wasn’t as easy as I expected. I stumbled upon new concepts, such as ORB and RANSAC. In this third and final post, I want to tackle the video creation itself, explain some 'artistic' decisions, and leave the door open to future work.
In the previous post, I described the Seasons project: a time-lapse of hundreds of pictures taken from nearly the same viewpoint over the years. The hardest challenge wasn’t taking the pictures or assembling them, but aligning them. You might have noticed the nearly part about viewpoint in the above paragraph. Indeed, it’s an approximation. I’m a human being, not a tripod. The position changes ever so slightly, and so does the exact angle.
I live close to nature. I regularly go for a run in the countryside. Over several years, during my runs, I’ve taken pictures from the same position, always roughly the same angle. I had a vague idea in the back of my mind, as an 'artistic' project. One day, I’d turn those photos into a time-lapse video, one that would show the passage of seasons across a single place. Spoiler, here’s the work in progress: However, I knew that this project would take ages.
Who makes Replit art? Hi! Thats me! My name is Joe and I’m Replit’s illustrator. I have been making art/graphics/multi media for the last 10 years. I studied Visual Media and excelled in experimental artwork. I draw for fun almost daily and I can’t stop thinking about aesthetics and concepts. It started with colouring in books when I was a kid I went from there basically. I have a huge love for making and appreciating art. I’m specifically drawn to art that rocks you to your core! Anything with wild colours, strange or abstract concepts, stuff that makes you feel something. My major…
I had a dream one night where a blackbird was talking in human language. When I woke up there was actually a blackbird singing outside the window. Its inflections were curiously speech-like. The dreaming mind only needed to imagine a bunch of additional harmonics to form phonemes and words. One was left wondering if speech could be transformed into a blackbird song by isolating one of the harmonics... One way to do this would be to: Find the instantaneous fundamental frequency and amplitude of the speech. For example, filter the harmonics out and use an FM demodulator to find the frequency.…
acousticsartexcerpt only · body stays at the source
Back in April I bought a vinyl record that had a weird wavy pattern near the outer edge. I though I may have broken it somehow but couldn't even test this because I don't own a record player. *) But when I took a closer look at the pattern it seemed to somehow follow changes in the music. That doesn't look like damage at all. When I played the CD version it became clear: this was an artifact of the tempo of the electronic track (100 bpm) being a multiple of the rotational speed (33 1/3 rpm), and these were probably drum hits! My tweet sparked some interesting discussion and I've been…
OpenCV is a pretty versatile C++ computer vision library. Because I use it every day it has also become my go-to tool for creating simple animations at pixel level, for fun, and saving them as video files. This is not one of its core functions but happens to be possible using its GUI drawing tools. Below we'll take a look at some video art I wrote for a music project. It goes a bit further than just line drawings but the rest is pretty much just flavouring. As you'll see, creating images in OpenCV has a lot in common with how you would work with layers and filters in an image editor like GIMP…
It would be fun to use the Otamatone in a musical piece. But for someone used to keyboard instruments it's not so easy to play cleanly. It has a touch-sensitive (resistive) slider that spans roughly two octaves in just 14 centimeters, which makes it very sensitive to finger placement. And in any case, I'd just like to have a programmable virtual instrument that sounds like the Otamatone. What options do we have, as hackers? Of course the slider could be replaced with a MIDI interface, so that we could use a piano keyboard to hit the correct frequencies. But what if we could synthesize a…
A little music project I was writing required a melody be played on a music box. However, the paper-programmable music box I had (pictured) could only play notes on the C major scale. I couldn't easily find a realistic-sounding synthesizer version either. They all seemed to be missing something. Maybe they were too perfectly tuned? I wasn't sure. Perhaps, if I digitized the sound myself, I could build a flexible virtual instrument to generate just the perfect sample for the piece! I haven't really made a sampled instrument before, short of perhaps using Impulse Tracker clones with terrible…
acousticsartexcerpt only · body stays at the source
Memorizing SSH public key fingerprints can be difficult; they're just long random numbers displayed in base 16. There are some terminal-friendly solutions, like OpenSSH's randomart. But because I use a Unicode terminal, I like to map the individual bytes into characters in the Miscellaneous Symbols and Pictographs block. This Perl script does just that: @emoji = qw( 🌀 🌂 🌅 🌈 🌙 🌞 🌟 🌠 🌰 🌱 🌲 🌳 🌴 🌵 🌷 🌸 🌹 🌺 🌻 🌼 🌽 🌾 🌿 🍀 🍁 🍂 🍃 🍄 🍅 🍆 🍇 🍈 🍉 🍊 🍋 🍌 🍍 🍎 🍏 🍐 🍑 🍒 🍓 🍔 🍕 🍖 🍗 🍘 🍜 🍝 🍞 🍟 🍠 🍡 🍢 🍣 🍤 🍥 🍦 🍧 🍨 🍩 🍪 🍫 🍬 🍭 🍮 🍯 🍰 🍱 🍲 🍳 🍴 🍵 🍶 🍷 🍸…
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