JavaScript を PNG に圧縮する | Yomotsu net
gif.js
Full-featured JavaScript GIF encoder that runs in your browser. Download & Docs on GitHub Usage var gif = new GIF({ workers: 2, quality: 10 }); // add a image element gif.addFrame(imageElement); // or a canvas element gif.addFrame(canvasElement, {delay: 200}); // or copy the pixels from a canvas context gif.addFrame(ctx, {copy: true}); gif.on('finished', function(blob) { window.open(URL.createObje
PhobosLab
MPEG1 Video Decoder in JavaScript With still no common video format for HTML5 in sight, I decided to implement an MPEG1 decoder in JavaScript. I know there's already an h264 decoder for JavaScript around, but it's huge, compiled with emscripten and quite complicated. An MPEG1 decoder sounded like a relatively simple and fun weekend project. While the real world use cases for this are of course a b
pure JavaScriptでアニメーションGIFを作る - 海峡
jsdvi - JavaScriptでdviプレビューアを書いてみるというネタ（→ dvi.jsに改名しました） - naoya_t@hatenablog
JavaScriptは機械語となる
HTML5アプリケーション基盤としてのプログラミング言語JavaScriptとセキュリティ
www.Visual6502.org
Visual Transistor-level Simulation of the 6502 CPU and other chips! Welcome to Visual6502.org! Here we'll slowly but surely present our small team's effort to preserve, study, and document historic computers. We aim to present our work in a visual, intuitive manner for education and inspiration, and to serve as a solid verifiable reference for classic computer systems. See our slides for an intr
はてなグループの終了日を2020年1月31日(金)に決定しました - はてなの告知
この発想はなかった。GIFアニメーションをCanvasで解析して自由に再生·jsgif MOONGIFT
Benvie/reified · GitHub
var Point = new StructType('Point', { x: UInt32, y: UInt32 }); var RGB = new StructType('RGB', { r: UInt8, g: UInt8, b: UInt8 }) var Pixel = new StructType('Pixel', { point: Point, color: RGB }) var Triangle = new ArrayType('Triangle', Pixel, 3) //--> ‹Triangle›(33b) [ 3 ‹Pixel›(11b) | point: ‹Point›(8b) { x: ‹UInt32› | y: ‹UInt32› } | color: ‹RGB›(3b) { r: ‹UInt8› | g: ‹UInt8› | b: ‹UInt8› } ] va
JavaScriptで耳grepするやつ - 音の鳴るブログ
面白そうなのでつくった http://mohayonao.herokuapp.com/mimi 詳細 目grep入門 +解説 http://www.slideshare.net/murachue/grep-8132856 目grep、舌grep、耳grep - Togetter http://togetter.com/li/266103 やったこと ドラッグ＆ドロップしたファイルを File API で読む File.slice を使えば分割読み込みができる（ただし、webkit, moz プレフィックスが必要） 128バイトずつ読み込んで波形テーブルに変換したのを再生 途中で疲れた やってないこと grep
PSD.js by meltingice
A Photoshop PSD file parser in Javascript for NodeJS and the browser. View the Project on GitHub meltingice/psd.js Download ZIP File Download TAR Ball View On GitHub A general purpose PSD parser written in Coffeescript. Based off of PSD.rb. It allows you to work with a Photoshop document in a manageable tree structure and find out important data such as: Document structure Document size Layer/fold
JavaScriptで動画から音声を抽出してみた
GitHub - jDataView/jDataView: DataView. Extended. Anywhere.
There are three ways to read a binary file from the browser. The first one is to download the file through XHR with charset=x-user-defined. You get the file as a String, convert it to byte Array and you have to rewrite all the decoding and encoding functions (getUint16, getFloat32, ...). All the browsers support this. Then browsers that implemented Canvas also added CanvasPixelArray as part of Ima
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asm.js
GitHub - ynakajima/ttf.js: JavaScript font library for Node.js and browser.
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http://pomax.nihongoresources.com/pages/Font.js/