Cov txheej txheem:

Kev Tshaj Tawm - nws puas yog qhov yooj yim tshaj plaws physics lossis kev ua khawv koob ntawm kev tsim ib qho txuj ci?
Kev Tshaj Tawm - nws puas yog qhov yooj yim tshaj plaws physics lossis kev ua khawv koob ntawm kev tsim ib qho txuj ci?
Anonim

Hauv kev yees duab, nws feem ntau lees paub tias qhov raug yog txheej txheem ntawm irradiating lub teeb nrog lub teeb pom kev zoo hauv lub koob yees duab. Ob lub matrix (rau cov khoom siv niaj hnub no) thiab zaj duab xis (rau cov yeeb yaj kiab) tuaj yeem ua qhov no.

Qhov teeb tsa raug raug cuam tshuam ntau npaum li cas lub teeb hits lub caij - thiab nyob ntawm qhov no, ib lossis lwm qhov yuav tau txais. Nws yog ib qho tseem ceeb kom tsis txhob overexpose, vim hais tias ntau dhau lub teeb yuav ua rau ib tug overexposed duab, thiab me me heev yuav tsis tso cai rau kos tus kwv - qhov tshwm sim tej zaum yuav ib tug tsaus nti ncej.

nthuav tawm nws
nthuav tawm nws

Tus nqi ntawm lub teeb uas tsoo lub sensor lub ntsiab yog cuam tshuam los ntawm qhov loj ntawm lub aperture, lub teeb rhiab heev ntawm lub caij nws tus kheej thiab raug. Tag nrho cov no yuav cuam tshuam qhov kawg ntawm kev tua.

Dab tsi yog qhov raug thiab overlay

Kev nthuav tawm nrog qhov sib tshooj ua rau muaj txiaj ntsig zoo: cov duab ntawm cov khoom uas tau yees duab ntawm lub sijhawm sib txawv tshwm sim ntawm tib lub thav duab. Cov txheej txheem no tau paub txog cov kws yees duab hauv tsev kawm ntawv qub, tab sis nrog cov koob yees duab digital niaj hnub no,Nws yog ib qho nyuaj heev rau kev siv, thiab raug thiab ua kom haum rau pheej yig "xab xab npum tais diav" yog ib txoj hauj lwm tsis yooj yim sua.

Koj tuaj yeem ua cov txheej txheem niaj hnub no hauv ntau txoj hauv kev:

  • siv cov koob yees duab zaj duab xis;
  • siv cov thev naus laus zis;
  • by software method on the computer.

koob yees duab digital

Tsuas yog ob peb niaj hnub "cov duab" muaj nuj nqi ntawm kev sib tshooj ob lossis ntau dua. Xws li cov cuab yeej tso cai rau koj tua hauv hom "ntsuab", uas yog, hauv hom tsis siv neeg siab. Thiab nyob rau hauv rooj plaub no, tej zaum koj yuav tsis txawm muaj lub tswv yim dab tsi raug. Nws tseem tuaj yeem ua qhov no nrog lub cim tshiab ntawm "zoo nkauj" smartphones.

kev teeb tsa raug
kev teeb tsa raug

Tab sis txawm nrog kev pab los ntawm cov kim kim digital "reflex lub koob yees duab", thiab txawm tias ntau dua nrog " xab npum tais diav ", xws li cov txheej txheem ua ob npaug rau overlay ob lossis ntau thav ntawv hauv ib qho ua tsis tau.

koob yees duab

Teeb tsa kev sib xyaw thiab nthuav tawm ntawm zaj duab xis yuav tsum muaj qee yam kev paub, kev txawj thiab peev xwm los ntawm tus kws yees duab. Cov txheej txheem rau qhov no yuav yog raws li hauv qab no:

  • thawj thav duab yog coj nrog txhua qhov tsim nyog tsis - shutter ceev, aperture, thiab lwm yam;
  • ces zaj duab xis yog dov raws nraim ib thav duab rov qab (qhov no tsis tau nyob rau hauv tag nrho cov koob yees duab);
  • koob thib ob yog coj nrog lub hom phiaj kom tag nrho cov ntsiab lus ntawm tus ncej thib ob haum raws nraim ntawm cov ntsiab lus ntawm thawj tus. Qhov no yuav tsum muaj qhov tseeb qhov muag thiab ntau yam kev paub los ntawmkws yees duab;
  • ntsiab lus tseem ceeb: txhawm rau kom tsis txhob muaj ntau dhau ntawm cov yeeb yaj kiab, koj yuav tsum "underexpose" tus ncej thib ob me ntsis, teeb tsa lub shutter ceev me ntsis tsawg dua nyob rau hauv ib txwm muaj.

zaj movie no yog tsim thiab luam tawm raws li kev cai.

Raws li kev sim, koj tuaj yeem yooj yim "snap" tag nrho cov yeeb yaj kiab ua ntej, thiab tom qab ntawd cua nws rov qab rau hauv lub reel thiab tua dua. Qee zaum qhov no ua rau muaj kev txhaj tshuaj zoo heev.

raug thiab sib xyaw
raug thiab sib xyaw

Cov txiaj ntsig zoo sib xws kuj tuaj yeem ua tiav yog tias ob zaj duab xis muab tso rau hauv lub tshuab tib lub sijhawm thaum luam ntawv duab - ib lub thav duab yuav muab tso rau ntawm lwm qhov.

txheej txheem txheej txheem

Thaum kawg, tag nrho cov saum toj no tuaj yeem ua tiav ntawm lub khoos phis tawj hauv ntau cov duab kho duab. Piv txwv li, nyob rau hauv lub npe nrov Photoshop. Thiab rau qhov no koj tsis tas yuav paub tias qhov raug yog ib yam dab tsi cuam tshuam nrog lub teeb thiab photocells.

Cov txheej txheem yuav ua raws li hauv qab no:

  • qhib thawj cov ntaub ntawv;
  • ces luag thiab poob rau hauv tib lub qhov rais qhib cov ntaub ntawv thib ob uas koj xav siv lub overlay;

  • yog tias tsim nyog, koj tuaj yeem hloov pauv tus ncej thib ob, tig nrog cov cim tshwj xeeb raws cov npoo ntawm ob txheej duab;
  • ces koj yuav tsum ua si nrog kev sib xyaw thiab kev xaiv pom tseeb ntawm txheej hauv tus txheej txheem txheej txheem ntawm sab xis.

Tsis muaj leej twg hais tias niaj hnub software "cov cuab yeej" tso cai rau koj kom ua tiav cov duab zoo thiab muaj tswv yim, tab sisprofessionalism ntawm tus kws yees duab yog ntxov dhau los sau tawm. Qee lub sij hawm xaiv qhov kev txhaj tshuaj zoo thiab kev paub txog kev tua ntau dhau los tsim cov txuj ci tiag tiag.

Pom zoo: