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Groups > alt.os.linux > #39058
| From | jrg <connyank@cox.net> |
|---|---|
| Newsgroups | alt.os.linux |
| Subject | Re: gamma |
| Date | 2016-09-23 10:32 -0700 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <ns3oud$e4$1@gioia.aioe.org> (permalink) |
| References | <ns33rb$q78$1@ls237.t-com.hr> <e4l697Fpl2oU1@mid.individual.net> |
On 09/23/2016 10:15 AM, Mike Easter wrote: > Askfor wrote: >> What is gamma, related to imaging and monitors ? Most explanations >> include some graphs, but how does it affect my visual experience ? How >> is it related to common visual attributes, like brightness, contrast and >> saturation ? Is there some sort of method to translate gamma into some >> combination of those three ? > > Should we assume that you already know/understand what the wp article on > gamma correction says? It is brief but gives a useful overview. Pieces > of two sentences pasted behind the link: > > https://en.wikipedia.org/wiki/Gamma_correction Gamma encoding of images > is used to optimize the usage of bits when encoding an image, or > bandwidth used to transport an image, by taking advantage of the > non-linear manner in which humans perceive light and color. ... If > images are not gamma-encoded, they allocate too many bits or too much > bandwidth to highlights that humans cannot differentiate, and too few > bits or too little bandwidth to shadow values that humans are sensitive > to and would require more bits/bandwidth to maintain the same visual > quality. > Oh, now I see... :-p
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gamma Askfor <askfor@nowhere.net> - 2016-09-23 13:19 +0200
Re: gamma "Auric__" <not.my.real@email.address> - 2016-09-23 14:10 +0000
Re: gamma Askfor <askfor@nowhere.net> - 2016-09-23 16:50 +0200
Re: gamma Jasen Betts <jasen@xnet.co.nz> - 2016-09-23 20:23 +0000
Re: gamma Askfor <askfor@nowhere.net> - 2016-09-23 18:00 +0200
Re: gamma Jasen Betts <jasen@xnet.co.nz> - 2016-09-23 20:26 +0000
Re: gamma jrg <connyank@cox.net> - 2016-09-23 14:48 -0700
Re: gamma Mike Easter <MikeE@ster.invalid> - 2016-09-23 10:15 -0700
Re: gamma jrg <connyank@cox.net> - 2016-09-23 10:32 -0700
Re: gamma Askfor <askfor@nowhere.net> - 2016-09-23 19:55 +0200
Re: gamma Snit <usenet@gallopinginsanity.com> - 2016-09-23 11:05 -0700
Re: gamma Snit <usenet@gallopinginsanity.com> - 2016-09-23 10:27 -0700
Re: gamma tmelmosfire@gmail.com - 2016-09-23 21:06 -0700
Re: gamma Jim Polaski <jpolaski@linuxmail.org> - 2016-09-24 04:16 +0000
Re: gamma tmelmosfire@gmail.com - 2016-09-24 00:58 -0700
csiph-web