Real-Time Video Chroma Key with Delta-E Formula
Real-Time Video Chroma Key with Delta-E Formula launched on April 26, 2015 with 27 votes, #1,004 of 3,600 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 11 years on.
In plain words
Real-Time Video Chroma Key with Delta-E Formula is a web-based tool that removes green screen from video using the dE76 color difference formula. It processes each pixel of an HTML5 video to determine if it matches green screen colors, then replaces matching pixels with user-defined content. The demo uses OK Go's "WTF" music video to demonstrate the technique, swapping green pixels for red and black noise. The tool requires a modern browser and fast connection to handle the intensive pixel calculations in real time.
written from the facts on this page · September 2026
From the sources
The demo below uses dE76 to incorporate a poor man's chroma key: replacing green pixels with any arbitrary user input (in this case, red&black pixel noise). *Claim is void if you are on mobile, a slow connection, or archaic browser. The video itself is OK Go's "WTF" - they are a fantastic band, and released the green screen footage here: http://okgo.net/2010/01/20/wtf-video-remix-project/ At a broad level, the demo works by calculating the dE76 value for each pixel on the HTML5 video, and then decides if that pixel is green enough or not. If that sounds intensive, that's because it is. Let's look at the fun problems encountered. The code for this demo runs on a single thread on your CPU.…from zschuessler.github.io
Does a similar job
all alternatives →
Chroma Key By FlexClip2024 · flexclip.com · ▲15Effortlessly remove and replace video backgrounds online.
I Made JavaScript Color Conversion Library for LCH/Lab/XYZ/RGB/Hex/HSL2020 · github.com · ▲55ac-colors is a reactive JavaScript color library that can freely convert between RGB, HSL, HEX, XYZ, LAB, LCHab, LUV, and LCHuv, as well as handle random color generation and contrast ratio calculation. - vinaypillai/ac-colors
- BBBrowser-based light pollution simulator using real photometric dataMay 2026 · iesna.eu · ▲44
Hi HN — author here. iesna.eu is a browser-based ecosystem for working with photometric data: parsing standard luminaire files (LDT/EULUMDAT, IES LM-63, Oxytech, ATLA-S001), running design calculations against EN 13201 / ANSI/IES RP-8 / CJJ 45 / IES-IDA MLO, and (the part I most want to show off here) rendering real urban scenes in Bevy with the photometric data driving actual streetlight behavior, including sky-glow contribution. The Skyglow Analysis demo loads a real LDT file into a Bevy scene (Khronos Bistro test asset). The luminaire's intensity distribution…
More life & fun this month
the category →
A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.
Life & fun · 2d ago · permit.petercai.com
- IV
Life & fun · 14d ago · tanzaniaeducationproject.org
Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.
Life & fun · 15d ago · bigwords.page
Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.
Life & fun · 9d ago · guitoro.com
Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.
Life & fun · 13d ago · carrierexplode.com
Life & fun · 23d ago · space.bl2.net
Source: Show HN post ↗
Launched alongside, April 2015
the whole month →
Hunter▲1,703Find any company logo by domain with Hunter’s free logo API. No account, no API key. The simplest Clearbit Logo API replacement, switch in 30 seconds.
Growth · 2015 · hunter.io
saas that helps convert
Life & fun · 2015 · transformy.io
- AR
Life & fun · 2015 · tiffzhang.com
