NASA's Decorrelation Stretch (DStretch) image processing technique, originally developed for satellite imagery, is now being used to reveal hidden or ancient images embedded in satellite photos. The technology enhances color differentiation to bring out details invisible to the naked eye.
Background
DStretch (Decorrelation Stretch) is a NASA-developed image analysis tool that enhances color information in multispectral imagery by decorrelating color channels, making subtle details more visible.
- Source
- Hacker News (RSS)
- Published
- Sep 10, 2026 at 11:29 PM
- Score
- 6.0 / 10