Always wanted to implement that on a phone, it would be like a superpower!

Going to be taking a lot more pictures of rock faces!

Matlab - https://www.mathworks.com/help/images/enhance-color-separati...

This paper might also be of interest - https://www.mdpi.com/2227-7390/13/20/3297

"In this paper, we review the theory behind decorrelation stretch and propose some alternative algorithms that resolve the issues of the standard approach."

Had an llm build something quickly so I could play with it. https://shannietron.github.io/decorrelation_stretch/

The app is called DStretch, it's available for iOS and Android

https://dstretch.com/Apps/index.html

This supports something similar (PCA color stretch)

https://meesoft.com/Analyzer/

There is also a 21 euro app https://play.google.com/store/apps/details?id=com.dstretch.a...

"A contribution is mandatory before I will send the plugin. It may take me a few days to respond, have patience. Please note that the plugin is not an app. It has much more functionality than is possible in an app on a smartphone."

"The DStretch [mobile] app is a lightweight version of DStretch intended to give users the ability to enhance rock art in the field. It is not a substitute for the DStretch plugin which has much more functionality."

The 1996 paper mentioned in the NASA article: https://dstretch.com/DecorrelationStretch.pdf

Updated from https://gizmodo.com/this-nasa-color-trick-was-meant-for-mars..., thanks!

Way better, thank you

Weather satellites have done more to increase crop yield than anything since the invention of artificial fertilizer and save more lives.