Follow-up to #332, where N chip color and spectra were determined via direct measurement. While the colors were plausible, they all appear too "light" on most LCD screens. So much so that organic soil material and darker soils like CAPAY, ZOOK, and other using N colors seemed "off".
Since the Munsell -- sRGB conversion was mostly for qualitative visualization, it didn't matter much. Now that CIELAB color coordinates are included in the LUT, implying some level of colorimetric accuracy, there needs to be a little more explanation.
The N chips in aqp were far too dark from 2018--2025, having been estimated vs. measured.
Here is N 2/ over time:
TODO:
Decide:
- CIELAB accuracy vs. on-screen representation for N chips / spectra
Follow-up to #332, where N chip color and spectra were determined via direct measurement. While the colors were plausible, they all appear too "light" on most LCD screens. So much so that organic soil material and darker soils like CAPAY, ZOOK, and other using N colors seemed "off".
Since the Munsell -- sRGB conversion was mostly for qualitative visualization, it didn't matter much. Now that CIELAB color coordinates are included in the LUT, implying some level of colorimetric accuracy, there needs to be a little more explanation.
The N chips in aqp were far too dark from 2018--2025, having been estimated vs. measured.
Here is N 2/ over time:
TODO:
estimateSoilColor()model development (I doubt it)Decide: