I’ve always liked looking at colors and color relationship in both CIEL*a*b* and CIEL*u*v*. Neither is perfectly perceptually uniform, and on average, they’re both about the same distance away from that. A couple to times I’ve looked at averaging the two, but nobody else does that, so I haven’t published any of those graphs. But… [Read More]
Archives for May 2022
Gamut of a basis-function derived metamer set
I’ve previously reported on a project about observer metameric errors in digital cameras. I built a program that, given a target color and a set of sample reflectance spectra, will: Using principal component analysis, find a set of basis functions for the sample set Assuming the set is lit with a particular illuminant (I… [Read More]
Observer metameric error in simulated cameras, part 3
In previous work for a project about observer metameric errors in digital cameras, I built a program that, given a target color and a set of sample reflectance spectra, will: Using principal component analysis, find a set of basis functions for the sample set Assuming the set is lit with a particular illuminant (I used… [Read More]
Moving away from Sony cameras
I’ve been using Sony cameras for well over ten years. When they came out with the NEX series of APS-C MILCs, I was all over them. I fully committed when they introduced the alpha series of FF MILCs. The Sony FF cameras, I have owned: a7R a7 a7RII a7II a7RIII a7RIV a9 a9II RX1R I’ve… [Read More]
Observer metameric error in simulated cameras, part 2
In previous work for a project about observer metameric errors in digital cameras, I built a program that, given a target color and a set of sample reflectance spectra, will: Using principal component analysis, find a set of basis functions for the sample set Assuming the set is lit with a particular illuminant (I used… [Read More]
- « Previous Page
- 1
- …
- 3
- 4
- 5