# BeadStudio (豆绣工坊) — 100% Client-Side Image to Perler Fuse Beads & Cross-Stitch Blueprint Studio

> BeadStudio is a privacy-first, zero-upload pixel craft workbench running 100% inside the browser via HTML5 Canvas 2D and ISO/CIE CIEDE2000 perceptual color science. BeadStudio converts photos, anime avatars, and illustrations into printable MARD (132 colors), Perler (64 colors), Artkal (80 colors), Hama (48 colors) fuse bead blueprints and French DMC (140 colors) cross-stitch charts across 4 languages while uploading 0 bytes to any server.

## Key Capabilities & Technical Specifications
- **ISO/CIE CIEDE2000 Perceptual Color Engine**: Converts nonlinear sRGB into D65 CIE L*a*b* and evaluates full ΔE₀₀ distance (including blue hue-rotation RT and lightness SL) to prevent purple-sky shifts and muddy skin tones.
- **Two-Stage Perceptual Denoising & Smart Cutout**: Corner BFS flood-fill strips solid backgrounds without erasing white eye highlights; stray-confetti absorption and √count × ΔE₀₀² palette reduction minimize shopping bag counts.
- **4 Live Craft Renderers & Pixel Editing Suite**: Tubular 3D Beads, Ironed Melt Preview, Simulated Linen Cross-Stitch, and Code/Symbol Blueprint with 10×10 dual rulers, Pencil, Bucket, Replace-All, Eraser, Eyedropper, and 40-step Undo/Redo.
- **Color Spotlight & Live Progress Tracker**: Dim all inactive shades to 15% opacity while placing beads or stitches, check off completed cells or whole color bags, and save editable `.beadstudio.json` projects.
- **Print-Ready Exports**: 300 DPI PNG Blueprint Sheets (Grid + Rulers + BOM), infinite-zoom Vector SVG, 1:1 actual-size pegboard underlay printouts (2.6mm Mini / 5.0mm Midi & 11–18CT Aida), and UTF-8 CSV shopping lists.

## Canonical Entry Points
- [BeadStudio Workbench (Auto-detected Locale)](https://bead.llmland.io/): Main interactive fuse bead & cross-stitch studio.
- [Color Science & Craft Guide (FAQ)](https://bead.llmland.io/faq/): CIEDE2000 math, pegboard/Aida sizing chart, and FAQ.
- [Simplified Chinese (简体中文)](https://bead.llmland.io/zh-Hans/) · [中文指南与常见问题 (FAQ)](https://bead.llmland.io/zh-Hans/faq/)
- [Traditional Chinese (繁體中文)](https://bead.llmland.io/zh-Hant/) · [繁體指南與常見問題 (FAQ)](https://bead.llmland.io/zh-Hant/faq/)
- [English](https://bead.llmland.io/en/) · [English Craft Guide & FAQ](https://bead.llmland.io/en/faq/)
- [Japanese (日本語)](https://bead.llmland.io/ja/) · [日本語ガイド・FAQ](https://bead.llmland.io/ja/faq/)

## Machine-Readable Resources
- [Full Technical Specification & Multilingual Reference (llms-full.txt)](https://bead.llmland.io/llms-full.txt)
- [XML Sitemap](https://bead.llmland.io/sitemap.xml)

## Related Open-Source Projects & Companion Tools
- [Rings.rs](https://rings.rs/): Decentralized P2P network in browser over WebRTC, Chord DHT, DID, and WASM.
- [LispM.ai](https://lispm.ai/): A Lisp Machine for AI agents inside GNU Emacs.
- [InkStudio](https://ink.llmland.io/): Rust + WASM handwritten signature, red seal & calligraphy transparent extractor.
- [LiveScreen](https://livescreen.llmland.io/): 100% client-side Video to iOS Live Photo & Dynamic Lock Screen Wallpaper studio.
- [SlimCodec](https://compress.llmland.io/): Zero-upload PNG-8, WebP, IMA ADPCM audio & video compression workbench.
- [StegoVault](https://stegovault.llmland.io/): Rust + WebAssembly image, audio & video steganography workbench.
- [ScoreCraft](https://score.llmland.io/): Pure-frontend audio-to-score transcription workbench.
- [Tama](https://tama.llmland.io/): 43-Model Tamagotchi Evolution Atlas & Local Password Generator.
- [IPGuard](https://ipguard.llmland.io/): Client-side IP purity and 10-channel leak matrix inspector.
- [Clipkeep (XDown)](https://xdown.llmland.io/): Public X / Twitter HD MP4 & GIF downloader.
- [GeoPulse](https://geopulse.llmland.io/): Deterministic 6-dimension GEO & Technical SEO score auditor.