Tag: Algorithms

All the articles with the tag "Algorithms".

• Deriving Great-Circle Distance from Latitude and Longitude

  Published: 19 Feb, 2026 |  at  09:09 AM

  Deriving great-circle distance from 3D Cartesian coordinates, examining short-distance precision loss, and obtaining the numerically stable haversine formula.

• Ditherpunk, Part 2: Image Dithering on an ESP32 Monochrome Display

  Published: 30 Dec, 2025 |  at  09:38 PM

  Porting dithering algorithms to an ESP32 monochrome display, with gamma lookup tables, an ST7305 driver, and Bayer, Atkinson, and blue-noise comparisons.

• Ditherpunk, Part 1: Dithering Algorithms and Interactive JavaScript Demos

  Updated: 3 Oct, 2026 |  at  03:40 AM

  Compare Bayer, Floyd-Steinberg and Atkinson dithering in your browser, toggle linear luminance, and download black/white PNGs. Images stay on your device.