3 ms·
One reason even well designed camera systems struggle to reproduce accurate colors is the relatively wide bandpass filters for each color. This is especially tr
by kloch 4y ago
One reason even well designed camera systems struggle to reproduce accurate colors is the relatively wide bandpass filters for each color. This is especially true for modern digital sensors with green, cyan, and clear Bayer filters.
While inexpensive to implement and coincidentally well matched to narrow-gamut encoding like sRGB, it significantly mangles red/yellow/green colors.
Filters that approximate the CIE 1931 standard observer effective band pass curves would be better (and work well with wide gamut encodings like rec.2020)
Here’s some detail I posted in a previous thread: https://news.ycombinator.com/item?id=31107643#31111607 https://news.ycombinator.com/item?id=31107643#31111607
The sensitivity curves for Kodachrome are narrow and a good match for the CIE standard observer RGB effective bandpass curves (ignoring negative red values):
https://125px.com/docs/film/kodak/e55-2009_06.pdf https://125px.com/docs/film/kodak/e55-2009_06.pdf
Keep in mind the response chart is log and what we are looking for is the -3db bandpass.