ĶDIY˾19ѡʾʱЩزɶDIY˾19ѡʾʱЩزɶ

2018-03-04 00:07  SJ α༭yangyang9

DIY˾ϵĿʮ˾ĿּΪṩDIYӲĿ֪ʶСԼʵϣһϲ֧ǽһѡʾʱЩӵIJʲôʾʲôңسҪ

崺 DIY˾вΧСʾЩز״ʲô˼ѡʾʱôȥʾЩdzIJָԱDIY˾ͼһ֮ǰ֪ʶʾЩ

a

ʵѡʾʱӴһҲdzߴֱɫϸרҵһǻӴʾ٤ֵbitȸ߽һIJЩЩɶѡʾʱӦôȥѡ

ȴӱȽϼ򵥵Ľ

ʾҪ

ߴ

a

a

Ļijߴԅ/ӢΪλָĻԽߵijͬߴ粻ͬĻһгߴ絥λһҪŪǺܶдĻߴճϰôʵDzϹкܶطΪ̼“”

ֱ

a

ڷֱǶ֪ʾͨһصͼƬֵʾСͬѧһ򵥵ʾʹص㣨ֱʸߴ30×23ʾÿص㶼չҪɫֱԽʾЧԽϸǵѡʾʱҪʾijߴѡСߴʾѡͷֱҲûϵϾͬߴ·ֱԽ߼۸ҲԽСƼĻС24ʵ1080P͹24ѡ2KֱʻȽû“”˴ͨ;רҵݾҪѡ

ֱصĻܶȺ͵ࣨص֮ľ룩ʵϾܺܺͲչ

ɫ

a

ʾɫĿǰͨõ׼

1NTSCҵӱ׼ίԱ1953궨Ƶı׼Ϊһֱ׼ĿǰѾ̫ڵʾѡ㼸Ժ

2sRGB΢˾1997ƶı׼ҲĿǰͨõı׼

3Adobe RGBԶ׼Adobe˾1998ƶı׼ҪsRGBĻCMYKɫҲǸ˶ɫĸ

ӱ׼Adobe RGBsRGBNTSC۵ɫΧ˵Adobe RGBNTSCsRGB

Ҫĵֲ֧ͬͬı׼GoogleChromeֻ֧sRGBȫûɫʹSafari;߱ɫʹIEͬҲ֧sRGBвֵɫʹõһʹõĻsRGB׼Ѿʹõϵı׼ͨ߶û̫

ʾҪؽѡҪֲɫרҵ͵羺ϷĺʾϸֵҽƵͲ

羺Ϸ

ڵ羺ϷȽעصʾˢʺӦʱΪ羺ѡֶӾϢܺͷӦձ鶼ͨҪһЩҼʹͨ“Լ”ȶʾӦʱˢҪϸߵϷ϶ов

ˢ

һʹõʾˢΪ60Hzһˢ60Żճǹ羺ʾ144HzʵǶϷеļҲ֧Ե羺ѡֻѡˢʵʾΪԼװ

2

ˢ˵144Hzʾ60Hzʾֹ60Hz144Hz30Hz60HzôҲǺܶ˵144Hz60Hzûԭ֮һºܶ˵ۿ30֡͹60֡ͷdz144Hzû

Ҳкܶ˵ʵֻҪ24̬֡ܿĻ֡ʵûôʵȷ˵24֡ǽ24֡ʶ̬Ļ24֡ͻÿ“PPT”֡ԽۿĻԽ

3

144Hz߸ˢʵʾȷʵϷˢԵ͵ĻпڵIJܻᱻͬһ֡ʾеиϷʾҪĿܾͻȽҪˢʵʾǵӾϷҪǺеĻһ60Hz75HzҲ㹻ʹһ羺ʾΪȷʵ羺ܵ۸ҲԹ

Ӧʱ

Һ

 

ںܾúܾǰӦʱ仹ָʾ”--“תʱʾעӦʱǻҽлӦʱ䣨GTGGrey To Grey

Ϸ򿴵ӰʱĻݲֻ֮лɫĶʻdzͬIJα仯Щҽ׼תʵҺתٶȼŤתǶʩӵѹĴСȫڵȫҺŤתǶʩԽϴĵѹʱҺŤתٶȽϿ漰ͬͬĻҶлʵճʾϿͼǻҽױ仯Ľ˺ڰӦIJʽѾȷıʵʵΪҽӦʱĸ˳Ӧ

ȻӦʱDzһʾһĻķӦٶȵĿ

˵

5=1/0.005=ÿʾ200֡
4=1/0.004=ÿʾ250֡
2=1/0.002=ÿʾ500֡
1=1/0.001=ÿʾ1000֡

Ƕ֪ϵʵʾʾ֡Ҫʾˢʵ

ͨ׵˵Ӧʱij̿Ӱʾ任ĹǷɾӰǷϷǵӾְҵ˵ʾӦʱȻԽԽĿǰϷʾӦʱΪ2ms-5ms߶һʾĻ1msžβ߶̬ķӦٶȺ

ǻᷢˢʺӦʱ䶼ճɻӰʵ֮DzһˢɵӾϵͳϵӰӦʱʾϵ“ԭ”Ӱ

ɫרҵ

ʾҪػҶ֪ˢʺӦʱڽijըҲ˽߰˰ӦöɫרҵIJ̫˽ǼܽӴɫص٤ֵɫ8bit10bitɶ

٤ֵ

chg90

ʾСܻʱ٤ֵIJͼ˵٤ֵǴɶأΪʲôҪѡ٤ֵγ=2.2Ϊǵı׼

٤ֵӰͼмֵɫмεĻҶͨ٤ֵԸıͼмɫҽ׵ֵͼм԰IJ̫ӰʵǽҪ˵ɫкĹϵô˵٤ֵɫ֮Ĺϵʵ٤ֵиõĻϸڳֺ͸õĻԭʵĻһϾǻǷǷ̫͵ʱɫֲûаϸ

٤ֵ=2.2ôأʵĿȷǵûʲôѧʲôʵõ1996΢ͻضĹ²˹ۿʾĸΪ8λͼ128Żң0.5ңĿлɫֵӦ԰21.8%ʾɺڵ׵ĽɿȽϾնӦGamma2.2ôǶ׼ӲҲͶ濿յʱGammaҲȡ1/2.2=0.454ܱ֤ϵͳGamma1߱ȻеɫֵĻõ

ɫbit

dzܿһЩɫרҵʾб8bit/10bitbitʲô˼Ǹôȥ⣿

ʵbitĻǼеĻλϢ01ɵõʾҲһ

a

ǼСǰʾ1bitʱʾʾصֻʶ1λϢôصչֵϢ“1”“0”ôصʾ22^1ɫ

a

ǼСʾ2bitʱʾʾصֻʶ1λϢôصչֵϢ“00”“01”“10”“11”ôصʾ42^2ɫ

Դʾ8bit彫ʾ2^8=256ɫÿص㶼RGBɫɵ8bitսչ256×256×256=16777216ɫ10bitĻǿԼһ

PConlineܽ

ʾʵĿǰѡ͸ֻҪԼܹԼȥԽѡĻͿԼʾΪĵչʾĿǰǧԪ¾һѷϣƪܰҸ˽ʾӶҸȥѡԼʾ

ΪƼ

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