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Groups > rec.photo.digital > #233681
| From | dale <dale@dalekelly.org> |
|---|---|
| Newsgroups | rec.photo.digital, sci.engr.color, sci.image.processing |
| Subject | Re: spectral cameras |
| Date | 2020-04-08 01:24 -0400 |
| Message-ID | <d2gcnq.6hm.17.1@news.alt.net> (permalink) |
| References | <d2f8ea.nlu.19.1@news.alt.net> <MPG.38f6fe4558ef051d98d0cb@news.supernews.com> <d2ffna.40s.19.1@news.alt.net> |
Cross-posted to 3 groups.
On 4/7/2020 5:09 PM, dale wrote: > On 4/7/2020 4:17 PM, Alfred Molon wrote: >> In article <d2f8ea.nlu.19.1@news.alt.net>, dale@dalekelly.org >> says... >>> >>> RGB color cameras has proved to be good on smart phones for consumers. >>> >>> Is sensor resolution nearing the point to measure spectral visible >>> wavelengths instead of tricolor and is there a market for >>> professional use? >> >> That doesn't depend on the sensor resolution. But you could make >> a sensor cell which is capable to measure light of (a limited >> number of) different wavelengths. Foveon is one example and the >> organic, multiple layer sensor design of Panasonic another one. >> > > kinda figured it wasn't a unique idea > > back to resolution ... the visible spectrum https://en.wikipedia.org/wiki/Visible_spectrum is from 380nm-720nm wavelengths if you sample that in 10nm increments, that a low end spectrometer 20 some years ago for approx $10K would do ... wouldn't you need 34 dots per pixel? In printing and publishing a typical rosette pattern CMYK pixel requires 8 dots ... -- Minister Dale Kelly, Ph.D. https://www.dalekelly.org/ Board Certified Holistic Health Practitioner Board Certified Alternative Medical Practitioner
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spectral cameras dale <dale@dalekelly.org> - 2020-04-07 15:05 -0400
Re: spectral cameras Alfred Molon <alfred_molon@yahoo.com> - 2020-04-07 22:17 +0200
Re: spectral cameras dale <dale@dalekelly.org> - 2020-04-07 17:09 -0400
Re: spectral cameras dale <dale@dalekelly.org> - 2020-04-08 01:24 -0400
Re: spectral cameras Alfred Molon <alfred_molon@yahoo.com> - 2020-04-08 19:28 +0200
Re: spectral cameras dale <dale@dalekelly.org> - 2020-04-12 20:29 -0400
Re: spectral cameras geoff <geoff@nospamgeoffwood.org> - 2020-04-13 13:16 +1200
Re: spectral cameras Alan Browne <bitbucket@blackhole.com> - 2020-04-13 17:01 -0400
Re: spectral cameras dale <dale@dalekelly.org> - 2020-04-13 17:24 -0400
Re: spectral cameras Alan Browne <bitbucket@blackhole.com> - 2020-04-13 18:58 -0400
Re: spectral cameras Martin Brown <'''newspam'''@nezumi.demon.co.uk> - 2020-04-09 08:42 +0100
Re: spectral cameras Martin Brown <'''newspam'''@nezumi.demon.co.uk> - 2020-04-08 07:51 +0100
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