Timeline for How much light and resolution is lost to color filter arrays?
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Mar 2, 2017 at 12:33 | comment | added | Euri Pinhollow | @CarlWitthoft I did not say anything about chromatic accuracy (Luther Ives conditions are completely different story). White, red, green, blue objects will be rendered with different details depending on CFA. Xtrans will give somewhat better resolution for white and green objects than bayer sensor but will resolve red and blue objects somewhat worse. This is what I mean when I say that Xtrans have worse chromatic resolution. Foveon X3 sensor will not favour any colour at all (in well lit conditions, aggressive colour transformation is not considered). | |
| Mar 2, 2017 at 12:27 | comment | added | Carl Witthoft | @EuriPinhollow You make a good point, but I'd suggest not using "resolution" to describe chromatic accuracy. That's nonstandard usage. | |
| Mar 2, 2017 at 12:26 | comment | added | Euri Pinhollow | "but the resolution is defined by ... the number of pixels per color group" - I think that it is reasonable to at least mention that resolution can be both chromatic and luminous. I.e. Xtrans cameras have bigger share of green pixels and they have better luminous resolution but worse chromatic resolution. | |
| Mar 1, 2017 at 17:12 | comment | added | feetwet | Regarding the resolution: I think what you're saying is that advertised resolution for a color sensor is largely tied to the number of Bayer groups. I.e., it is more than 1 pixel per Bayer group, but it's definitely not 4 pixels per Bayer group. But note that with no Bayer filter you really do get 4 pixels where before you had 1 Bayer group. | |
| Mar 1, 2017 at 12:24 | history | answered | Carl Witthoft | CC BY-SA 3.0 |