Chroma Key: Nws Yog Dab Tsi Thiab Yuav Siv Li Cas Nrog Green Screens

by kim Kho tshiab: Lub rau hli ntuj 27, 2022

Chroma yuam sij, kuj hu ua ntsuab tshuaj ntsuam, yog ib qho kev pom kev cuam tshuam rau kev sib txuas ob cov duab lossis cov yeeb yaj kiab hauv ib qho. Nws suav nrog kev tua duab lossis yees duab nyob rau pem hauv ntej ntawm ib qho xim tom qab thiab tom qab ntawd hloov qhov keeb kwm yav dhau los nrog cov duab tshiab lossis yees duab.

Cov txheej txheem no yog siv hauv kev tsim video thiab yees duab, thiab tshwj xeeb tshaj yog nrov hauv TV thiab zaj duab xis.

Hauv tsab xov xwm no, peb yuav muab cov lus qhia txog chroma key thiab piav qhia yuav ua li cas siv nws nrog cov ntxaij vab tshaus ntsuab.

Kev txhais ntawm chroma key

Chroma yuam sij yog cov txheej txheem tshwj xeeb cuam tshuam rau kev sib sau ob daim duab lossis cov kwj video ua ke. Cov thev naus laus zis no feem ntau siv los ntawm cov neeg ua yeeb yaj kiab los tsim cov teebmeem tshwj xeeb, lossis los ntawm cov neeg tshaj tawm los hloov keeb kwm yav dhau los nrog lub studio virtual. Nws ua haujlwm los ntawm kev siv lub chroma xim tseem ceeb - feem ntau yog ntsuab lossis xiav - nyob rau hauv ib tug yees duab thiab ces hloov nws nrog cov duab los ntawm lwm video.

cov brightness ntawm chroma key xim yuav tsum nyob twj ywm nyob rau hauv tag nrho cov txhaj tshuaj, txwv tsis pub tej yam kev hloov nyob rau hauv luminosity yuav pom ntawm qhov screen. Lub vijtsam ntsuab lub cev tuaj yeem siv rau kev tua yog tias xav tau, txawm li cas los xij virtual tuaj yeem siv los ntawm software thiab. Txhawm rau siv lub vijtsam ntsuab kom raug, koj yuav tsum nco ntsoov:

• Teeb pom kev zoo rau koj cov ntsiab lus kom raug
• Nco ntsoov tias tsis muaj duab ntxoov ntxoo nyob, vim tias cov no yuav pom lub teeb rau ntawm lub vijtsam ntsuab thaum tua tawm tsam nws thiab ua rau tib neeg pom tias muaj duab ntxoov ntxoo nyob ib puag ncig lawv thaum ua yeeb yaj kiab nyob rau pem hauv ntej ntawm achromatic backdrops xws li cov siv hauv Chroma Qhov Tseem Ceeb hauj lwm.

Yuav ua li cas chroma key ua haujlwm

Chroma yuam sij yog cov txheej txheem siv hauv digital video editing thiab compositing. Nws suav nrog kev sib txuas ob qhov kwj video rau hauv ib qho, siv cov xim tshwj xeeb (lossis chroma) raws li cov ntsiab lus siv. Cov xim raug tshem tawm los ntawm ib qho ntawm cov kwj deg, hloov nws nrog lwm daim duab lossis yees duab. Chroma key tseem hu ua "green screen" los yog "xiav npo"technology, vim cov xim no feem ntau siv rau cov nyhuv no.

Cov txheej txheem ntawm chroma keying ua haujlwm nyob rau hauv ob kauj ruam:

1. Ua ntej, thaj chaw ntawm daim duab uas yuav tsum tau muab tshem tawm yog txheeb xyuas los ntawm lawv cov xim. Qhov no tuaj yeem ua tiav tau yooj yim nrog cov khoos phis tawj niaj hnub no los ntawm kev siv software tshwj xeeb txhawm rau txheeb xyuas cov xim sib xws thiab tom qab ntawd muab nws los txheeb xyuas qhov tshwj xeeb rau kev siv chroma keying.
2. Qhov thib ob, qhov kev txheeb xyuas no tau hloov nrog cov duab lossis cov yeeb yaj kiab cov ntaub ntawv muab los ntawm tus neeg siv-tsim cov nyhuv uas tus neeg siv khoom siv cov ntsiab lus tshwm es tsis txhob muaj xim tom qab lossis pem hauv ntej.

Ntxiv nrog rau kev hloov cov keeb kwm yav dhau los nrog cov duab zoo li qub thiab cov yeeb yaj kiab, qee qhov kev siv kuj tseem muab cov kev xaiv xws li kho cov teeb pom kev zoo thiab cov kev xaiv kom ruaj khov rau ntxiv cov txiaj ntsig zoo dua thiab xa cov duab tso zis ntau dua. Kev sib xyaw ntau qhov kev txhaj tshuaj rau hauv ib daim duab sib xyaw kuj yuav tsum muaj kev paub txog cov txheej txheem npog ntsej muag, uas tuaj yeem rho tawm cov ntsiab lus los ntawm cov txheej txheem xaiv kom tau txais cov ntsiab lus zoo - xws li cov plaub hau lossis khaub ncaws tails - hauv photoshop ua ntej muab lawv tso rau hauv cov duab tsim los ntawm chroma tseem ceeb thev naus laus zis.

Siv Chroma Key nrog Green Screens

Chroma yuam sij, kuj hu ua xim keying, yog cov txheej txheem nrov siv hauv kev tsim cov yeeb yaj kiab rau superimposing cov duab pem hauv ntej tshaj cov duab keeb kwm yav dhau los txhawm rau tsim cov yeeb yaj kiab zoo dua. Thaum siv ua ke nrog a ntsuab npo, nws enables cov creation ntawm cov ncauj lus kom ntxaws heev, tiag tiag cov backdrops, raws li zoo raws li tshwj xeeb cov teebmeem xws li huab cua, tawg, thiab lwm yam ua yeeb yam scenes.

Cia peb khawb rau hauv yuav ua li cas siv chroma key nrog cov ntxaij vab tshaus ntsuab:

Xaiv lub vijtsam ntsuab

Xaiv txoj cai ntsuab npo rau koj chroma yuam sij tuaj yeem ua qhov sib txawv loj hauv qhov zoo tag nrho ntawm koj cov txiaj ntsig. Thaum xaiv ib qho screen ntsuab, saib rau cov ntaub nrog ib qho kev ntxhib los mos, du thiab tsawg creases. Cov khoom siv yuav tsum tsis txhob cuam tshuam, nruj nreem woven nrog tsis pom wrinkles los yog cuam tshuam seams. Koj xav kom ntseeg tau tias koj keeb kwm yav dhau los tsis muaj qhov tsis zoo uas tuaj yeem cuam tshuam cov txiaj ntsig chroma tseem ceeb; txwv tsis pub, koj yuav xaus nrog cov duab ntxoov ntxoo txawv txawv lossis ntu uas tshwm tawm ntawm qhov chaw.

cov xim ntawm koj lub vijtsam ntsuab ua lub luag haujlwm thiab. Cov neeg feem coob xaiv qhov ntxoov ntxoo ci hu ua "chroma-ntsuab” - tab sis lwm txoj kev xaiv xws li xiav yuav ua haujlwm zoo dua hauv cov xwm txheej tshwj xeeb. Nws feem ntau ua rau kev txiav txim siab rau kev sim thiab pom qhov kev xaiv ua haujlwm zoo tshaj plaws rau koj qhov project tshwj xeeb. Nco ntsoov tias koj xav kom tsis txhob muaj cov cheeb tsam ntsuab hauv cov ntsiab lus ntawm koj cov yeeb yaj kiab; Yog tias koj tab tom ua yeeb yaj kiab tib neeg tawm tsam cov nyom nyom nyom tom qab, piv txwv li, nws tuaj yeem nyuaj rau kev tshem tawm cov teeb meem tshwm sim los ntawm kev xav ntawm cov nyom nyom nyob ze.

Txawm koj txiav txim siab rau qhov ntxoov ntxoo twg, zam qhov ntxoov ntxoo ultra-saturated thiab ib txwm khaws cia teeb pom kev zoo hauv siab thaum xaiv xim xim; Lub teeb ci ntsa iab yuav ua rau nws nyuaj rau cov cuab yeej software digital los xaiv cov xim xim uas koj xav tau rau cov teebmeem pom tseeb thiab ua tiav chroma keying tej yaam num.

Teeb tsa lub vijtsam ntsuab

Teem ib ntsuab npo rau chroma tseem ceeb video ntau lawm yog ib qho yooj yim. Ua ntej, xaiv qhov chaw uas muaj qhov chaw txaus thiab yog zoo ci tab sis tsis ci dhau. Koj tseem yuav tau xyuas kom meej tias lub vijtsam ntsuab koj tau xaiv yog matte, yog li lub teeb yuav tsis cuam tshuam los ntawm nws. Tom ntej no, koj yuav xav tau dai lub vijtsam los ntawm ib qho chaw sawv ntsug lossis mount rau ntawm phab ntsa yog li nws tuaj yeem pom meej thaum ua yeeb yaj kiab.

Qhov kev ncua deb zoo tshaj plaws rau lub koob yees duab thiab cov ntsiab lus yuav tsum yog tsawg kawg 3-4 feet deb ntawm keeb kwm yav dhau. Qhov no yuav pab txo qis duab ntxoov ntxoo thiab glares, uas tuaj yeem ua rau cov xim txawv txawv thaum sib xyaw nrog lwm cov duab lossis clips. Yog tias ua tau, siv cov txheej txheem teeb pom kev zoo xws li peb-point teeb pom kev zoo los pab xyuas kom meej tias cov duab ntxoov ntxoo tsis hla mus rau koj lub vijtsam ntsuab teeb thaum lub sijhawm kaw.

Thaum koj lub vijtsam teeb tsa thiab teeb pom kev zoo, koj npaj tau pib noj koj cov chroma key txhaj tshuaj!

Teeb pom kev ntsuab ntsuab

Thaum teeb tsa lub vijtsam ntsuab ib qho tseem ceeb tshaj plaws yog teeb pom kev tom qab. Yuav kom tau txais txiaj ntsig zoo los ntawm koj tus yuam sij chroma, koj yuav xav kom paub tseeb tias koj lub vijtsam ntsuab yog sib npaug lit thiab yog dawb los ntawm ntxoov ntxoo. Txoj hauv kev zoo tshaj plaws kom ua tiav cov txiaj ntsig no yog nrog kev teeb tsa ob lub teeb uas siv lub teeb fluorescent lossis los ntawm kev siv lub teeb video tso rau ntawm 45-degree lub kaum sab xis ntawm sab laug thiab sab xis ntawm lub vijtsam ntsuab.

Koj tseem yuav xav kom ntseeg tau tias tsis muaj tsis xav xav txog, xws li cov hnub ci ncaj qha lossis cov teeb ci ntsa iab tawm ntawm koj keeb kwm yav dhau los. Yog tias ua tau, tua nyob rau hauv ib qho chaw kaw nrog qhov tsawg kawg nkaus teeb pom kev zoo sab nraud thiab xav txog kev nqis peev hauv qee cov ntaub thaiv npog los txhim kho koj cov txiaj ntsig ntxiv.

Thaum ua haujlwm nrog lub vijtsam ntsuab saib xyuas kom lwm yam khoom tawm ntawm kev txhaj tshuaj; koj yuav tsis xav kom muaj qhov tsis xav tau nchuav ntawm koj cov xim tom qab mus rau lwm yam khoom hauv koj qhov chaw. Thiab tsis txhob hnov ​​​​qab txog cov plaub hau - Yog tias muaj tus cwj pwm cov plaub hau hauv kev txhaj tshuaj, nws yuav tsum tau muab cais kom zoo los ntawm lawv cov kev tshuaj ntsuam ntsuab ib puag ncig kom nws yuav tsis raug tshem tawm thaum koj siv chroma cov teebmeem tseem ceeb tom qab!

• Xyuas kom tseeb tias koj lub vijtsam ntsuab yog sib npaug lit thiab dawb los ntawm ntxoov ntxoo.
• Tsis txhob tsis xav xav txog.
• Khaws lwm yam khoom tawm ntawm kev txhaj tshuaj.
• Xyuas kom tus cwj pwm cov plaub hau yog zoo sib cais los ntawm qhov screen ntsuab.

Kev ntes cov duab

Thaum ntes tau zoo, chroma yuam sij tuaj yeem pab koj los tsim cov teebmeem ntsuab ntsuab zoo nkauj. Txhawm rau pib, koj yuav tsum xub teeb tsa koj lub vijtsam ntsuab thiab cov khoom siv. Qhov no suav nrog kev ua kom ntseeg tau tias koj muaj tag nrho cov khoom tsim nyog xws li lub teeb ci ib puag ncig, lub koob yees duab zoo, cov ntaub ntawv tsim nyog thiab cov software tsim nyog.

Thaum koj tau teeb tsa ib puag ncig thiab khoom siv, nws yog lub sijhawm los ntes koj cov duab. Txhawm rau pib ua kom paub tseeb tias ob qho tib si cov txuj ci thiab koj qhov kev kawm tau hnav cov xim zoo sib xws uas tsis sib tsoo nrog cov keeb kwm yav dhau los lossis cov khoom siv rau ntawm qhov teeb tsa. Qhov no yuav pab kom paub tseeb tias tsis muaj xim paug pom hauv koj qhov chaw.

Tom qab ntawd, kom koj lub peev xwm sawv ntawm ob peb taw deb ntawm keeb kwm yav dhau los kom koj tuaj yeem paub tseeb tias tsis muaj qhov tshwm sim ntawm cov xim los ntawm cov keeb kwm yav dhau los cuam tshuam tawm ntawm lawv cov tawv nqaij lossis khaub ncaws thaum saib los ntawm ib qho chroma tseem ceeb lim. Tom qab ntawd tso koj tus kheej ncaj qha rau hauv qab lawv kom tsis txhob muaj kev cuam tshuam cov duab ntxoov ntxoo los ntawm cov khoom nyob ze lossis teeb pom kev zoo.

Tam sim no hais tias txhua yam nyob rau hauv qhov chaw thiab npaj rau kev kaw nws yog lub sij hawm los kho teeb pom kev zoo tej yam kev mob thiab ua ib co lwm qhov chaw raws li muaj feem xyuam rau cov ntaubntawv povthawj siv lub suab thiab ib txhij filming tej yam kev mob raws li tsim nyog nyob ntawm seb yuav ua li cas complex koj txhaj tshuaj yuav ua tau rau chroma keying thaum lub sij hawm tso tawm ntau lawm workflows tom qab. Thaum cov kev hloov kho no tau ua tam sim no nws lub sijhawm pib tua video!

Ncej Ntau Lawm

Tshaj tawm tom qab yog ib feem tseem ceeb ntawm txoj kev ua yeeb yaj kiab, thiab chroma yuam sij yog ib qho ntawm cov txheej txheem tseem ceeb tshaj plaws los xav txog. Chroma yuam sij yog cov txheej txheem tom qab tsim khoom uas suav nrog hloov keeb kwm yav dhau los nrog ib qho virtual. Cov txheej txheem no feem ntau yog siv hauv zaj duab xis thiab TV los ua ob qhov chaw ua ke.

Cia peb saib ntawm chroma key, nws yog dabtsi, Thiab yuav siv li cas nrog cov ntxaij vab tshaus ntsuab.

Siv cov nyhuv chroma tseem ceeb

Siv cov nyhuv chroma tseem ceeb mus rau ib tug yees duab yuav ua tau nyob rau hauv feem ntau video editing cov kev pab cuam. Feem ntau, nws yuav raug hu "chroma key" lossis "green screen". Txhawm rau pib, tso koj cov duab ntsuab ntsuab rau ntawm lub sijhawm thiab tso nws rov qab los nrog keeb kwm yav dhau uas koj xav hloov ntsuab.

Qee qhov video editing software muaj cov cuab yeej tshwj xeeb rau kev ua haujlwm nrog chroma cov teebmeem tseem ceeb thaum qee qhov yooj yim dua thiab xav tau cov txheej txheem phau ntawv. Siv cov xim xaiv, xaiv cov xim ntsuab siv hauv koj cov duab thiab kho qhov chaw xws li kam rau ua thiab siv, yog li ntawd tsuas yog cov keeb kwm yav dhau raug tshem tawm thaum khaws tag nrho cov ntsiab lus tsis-ntsuab ntsuab pom hauv qhov pom.

Thaum ua tiav, tso cov keeb kwm yav dhau los ntawm kev xaiv hla lub cutout nrog ntsuab keeb kwm yav dhau zais los ntawm saib. Txaus siab rau kev txhim kho kev tsim khoom raws li tam sim no koj tuaj yeem ntxiv cov duab kos duab lossis keeb kwm yav dhau los uas tsis tau ua tiav!

Nrog rau txhua yam koob hmoov thiab kev teeb tsa kom zoo ntawm koj cov chroma cov txiaj ntsig tseem ceeb, txhua yam uas tseem tshuav yog ua kom tiav cov khoom tom qab tsim khoom xws li kho xim, suab sib xyaw / kho or ntaus suab paj nruag rau tag nrho realization ntawm koj qhov project!

Kho cov chroma key settings

Chroma yuam sij yog ib txoj kev zoo siab tom qab tsim khoom uas tuaj yeem siv los ntxiv cov teebmeem zoo nkauj thiab cov xwm txheej rau kev txhaj tshuaj tom qab lawv tau kaw lawm. Nws tseem hu ua ntsuab screen technology, vim hais tias ib txwm lub vijtsam uas cais cov ntsiab lus los ntawm keeb kwm yav dhau yog xim ntsuab, fluorescent ntsuab.

Kho cov chroma key nqis yuav tsum tau ua kom zoo me ntsis kom tau txais nws txoj cai thiab tsim kom muaj qhov sib xyaw tiag tiag hauv kev tsim khoom tom qab. Qhov teeb meem tseem ceeb tshaj plaws los kho feem ntau yog qhov "nqi ntawm qhov tseem ceeb" lossis "zoo sib xws" kev teeb tsa. Qhov zoo sib xws no txiav txim siab npaum li cas ntawm cov keeb kwm yav dhau yuav raug tshem tawm thaum muab koj cov duab. Yog tias qhov teeb tsa no qis dhau lawm, koj tuaj yeem xaus nrog cov khoom pov thawj pom thiab pom qhov chaw ntawm keeb kwm yav dhau uas yuav tsum tau muab tshem tawm - qhov no yuav luag ib txwm tsim qhov tsis muaj tseeb thiab cuam tshuam los ntawm koj cov txiaj ntsig tag nrho.

Ntxiv nrog rau kev kho qhov zoo sib xws, koj yuav tsum ua kom sib luag theem ntawm koj cov duab pem hauv ntej thiab keeb kwm yav dhau los kom pom qhov tseeb. Ua li no koj yuav tsum tau kho cov qib luminance thiaj li yuav pab muab txhua tus ncej ua ke los ntawm kev ua kom lawv phim qhov ci thiab qhov sib txawv. Thaum kawg, yog tias koj xav tau kev tswj hwm koj qhov kev txhaj tshuaj, siv kev cai taug qab cov ntsiab lus Txhawm rau kom ntseeg tau tias qhov chaw zoo tshaj plaws ntawm cov ntsiab lus sib txawv thoob plaws thav duab thaum sib xyaw - qhov no yuav ua rau koj tswj nruj heev txog seb cov khoom zoo li cuam tshuam nrog ib leeg hauv qhov chaw tsis hais panning lossis zooming lossis lwm yam. txav lub koob yees duab ces kaum thoob plaws yuav siv.

Tshem tawm cov duab ntxoov ntxoo ntsuab

Thaum tshem tawm lub vijtsam ntsuab los ntawm cov duab, nws yog ib qho tseem ceeb kom tsis txhob overlook projecting ntxoov ntxoo. Txij li cov keeb kwm yav dhau ntawm lub vijtsam ntsuab tseem ceeb feem ntau yog pob tshab, txhua tus duab ntxoov ntxoo tsim los ntawm cov ntsiab lus tseem yuav nyob hauv tus ncej.

Txhawm rau tshem tawm cov duab ntxoov ntxoo no:

1. Pib los ntawm duplicate txheej nrog koj cov ntsiab lus tseem ceeb ntawm.
2. Nco ntsoov keying thiab qhov ncauj qhov ntswg raug muab tua.
3. ces rov qab koj cov txheej txheem thiab xaiv cov cuab yeej plooj ntawm koj xaiv.
4. Thov a me ntsis plooj mus rau qhov ntxoov ntxoo rau smooth tawm tej ntug hnyav.
5. Txuas ntxiv kho qhov opacity thiab plooj mus txog thaum koj tau mus txog qhov xav tau.
6. Ntxiv daim npog qhov ncauj yog xav tau thiab lwv tej cheeb tsam uas tseem pom cov seem ntawm cov xim ntsuab tshuaj ntsuam uas nyob sab nraum cov duab ntxoov ntxoo cheeb tsam.

Thaum cov duab ntxoov ntxoo raug kho thiab kho, txuag raws li lwm cov ntaub ntawv lossis overwrite cov ntaub ntawv uas twb muaj lawm rau tom qab siv!

Lub tswv yim thiab Tricks

Chroma Qhov Tseem Ceeb yog cov txheej txheem tom qab tsim khoom siv los ua kom cov ntu ntawm cov yeeb yaj kiab lossis duab pom pob tshab. Cov txheej txheem no feem ntau yog siv nrog cov ntxaij vab tshaus ntsuab thiab tso cai rau cov neeg ua yeeb yaj kiab tso cov neeg ua yeeb yam hauv qhov chaw tsim digitally yam tsis tas yuav mus rau qhov chaw.

Hauv seem no, cia peb tham txog qee yam cov lus qhia thiab kev ua kom yuam kev kom paub cov kos duab ntawm Chroma Key thiab ntsuab screen cuam tshuam.

Xaiv txoj cai ntsuab tshuaj ntsuam ntaub

Xaiv txoj cai ntsuab screen ntaub yog ib kauj ruam tseem ceeb hauv kev tsim kom tiav chroma key teeb tsa. Cov ntxaij vab tshaus ntsuab tuaj nyob rau hauv ntau ntau yam thiab ntaub, nrog rau paj rwb, muslin, velvet, ntaub plaub thiab polyester.

Nov yog qee yam yuav tsum xav txog thaum koj xaiv cov ntaub rau koj lub vijtsam ntsuab:

• Teeb pom kev zoo: Cov xim sib dua yuav pom lub teeb ntau dua, uas tuaj yeem ua rau muaj kev cuam tshuam ntawm koj keeb kwm yav dhau los. Cov xim tsaus yuav nqus ntau lub teeb los ntawm koj qhov chaw teeb pom kev zoo.
• Kev ntxhib los mos: Textured npuag tuaj yeem ua rau muaj kev xav lossis duab ntxoov ntxoo ntawm koj keeb kwm yav dhau uas tuaj yeem ua rau nws nyuaj rau software kom raug tshem tawm cov keeb kwm ntsuab ntawm koj cov duab. Smooth textures yog qhov zoo tshaj plaws rau ntau lub hom phiaj.
• Durability: Cov ntaub sib txawv muaj peev xwm tiv taus wrinkles thiab lwm yam hnav dua li lwm tus. Saib seb hom ntaub twg yog qhov zoo tshaj plaws rau kev siv rov qab los yog siv tau zoo thaum khaws cia kom zoo.
• Xim sib xws: Fabrics sib txawv nyob rau hauv cov nqe lus ntawm cov xim sib xws nyob rau ntau hom ntau los yog dye ntau. Siv sijhawm tshawb nrhiav cov neeg muag khoom uas muab cov ntaub nrog cov xim zoo ib yam ua ntej txiav txim siab qhov twg los nqis peev hauv.

Siv lub backdrop sawv ntsug

Thaum siv lub backdrop sawv ntsug, thawj kauj ruam yog los xyuas kom meej tias nws yog tag nrho assembled thiab ruaj ntseg nyob rau hauv qhov chaw. Qhov no tuaj yeem ua tau yooj yim yog tias koj ua raws li cov lus qhia uas tau muab nrog lub rooj muag zaub. Nws yuav tsum tuaj nrog nws tus kheej txheej ntawm fittings thiab clamps kom yooj yim teeb.

Thaum nws yog assembled, nws yog lub sij hawm mus muab cov khoom siv backdrop uas koj xaiv mus rau tus ntoo khaub lig ntawm qhov muag. Qhov no tuaj yeem ua tiav siv clamps lossis snaps nyob ntawm seb hom khoom koj siv. Qhov tseem ceeb uas yuav tsum nco ntsoov yog kom ntseeg tau tias koj cov ntaub ntawv backdrop zoo li txawm nyob rau ob sab thiab txaus taut.

Thaum kawg, tso koj lub koob yees duab rau pem hauv ntej ntawm koj cov duab ntsuab-screen multilayer raws li qhov koj xav tau kev txhaj tshuaj muaj pes tsawg leeg thiab siv ob peb qhov kev sim txhaj tshuaj thaum tig mus deb ntawm koj qhov kev kawm kom txog rau thaum koj zoo siab nrog qhov zoo thiab hnov ​​​​ntawm cov duab-capture tshwm sim ntawm qhov screen. Yog tias muaj wrinkles tseem nyob, koj tuaj yeem ua tau hlau lawv tawm los yog hloov me ntsis rau cov ntaub nro ua ntej koj pib ntes video footage los yog dluab nyob rau hauv lub teeb ua ntej tshem tawm tej yam tsis xav tau imperfections nyob rau hauv post-production editing theem.

Kev siv daim npav xim xim

Muaj qhov ua tau zoo tshaj plaws chroma tseem ceeb cav kev ua tau zoo tso siab rau qhov tseeb xim sib npaug, uas yog vim li cas siv daim npav xim xim thaum teeb tsa koj lub vijtsam ntsuab tuaj yeem pab tau zoo kawg. A xim checker card yog ib qho cuab yeej uas pab kom tau txais qhov tseeb dawb tshuav nyiaj li cas thiab nruab nrab txhua xim casts hauv koj cov scenes sib xyaw.

Nrog rau daim npav xim xim thaum teeb tsa ua kom ntseeg tau tias cov ntaub ntawv bluescreen lossis greenscreen yuav raug cuam tshuam cov xim zoo ntawm koj cov kev kawm. Nws kuj muab qhov sib xws ntawm kev txhaj tshuaj sib txawv thiab ntawm cov neeg ua yeeb yam sib txawv. Qhov no ua rau nws yooj yim dua los tsim cov teebmeem tiag tiag uas cov khoom los ntawm ib qho xwm txheej sib xyaw nrog cov khoom los ntawm lwm qhov xwm txheej seamlessly.

Kev khaws cov nyiaj dawb kom zoo ua ntej kev tua yuav pab ua kom ob qho tib si tua thiab tom qab tsim tawm los ntawm kev txo qis kev hloov kho ntxiv tom qab. Thaum teeb tsa thaj chaw rau chroma keying, nqa daim npav mus rau hauv tus ncej yam tsawg 12 taw ntawm lub koob yees duab thiab xyuas kom meej tias nws yuav siv sij hawm tsawg dua 2 feem pua ​​​​ntawm cheeb tsam; qhov no yuav tso cai rau koj kom tsis txhob muaj lub lens distortion warping nws cov duab. Kho qhov chaw raug kab mob kom txog thaum lub ntsuas qhov kis tau nyeem nyob rau hauv ob qhov nres nruab nrab grey rau ob qho tib si tseem ceeb thiab duab ntxoov ntxoo (tsis suav nrog qhov tshwj xeeb tshwj xeeb).

Nco ntsoov ntsuas kom raug sai li sai tau ua ntej kev tua pib kom koj tuaj yeem muaj kev siv tshuaj tua kab dawb sib npaug ib qho kev txhaj tshuaj ntxiv rau hauv thaj chaw ntawd tom qab ntawd, tiv thaiv lub sijhawm poob ntawm qhov tsis tsim nyog hloov kho tom qab tom qab tsim khoom.

xaus

Chroma keying yog cov txheej txheem muaj zog siv los ntawm cov kws yees duab, cov neeg ua yeeb yaj kiab thiab cov kws kho video los tswj hwm lub hauv ntej ntawm qhov xwm txheej thaum sib koom ua ke nrog keeb kwm yav dhau. Thaum ua tiav lawm, chroma tseem ceeb tuaj yeem ua rau txhua tus duab zoo li nyob rau hauv pem hauv ntej ntawm lwm cov duab - tom qab ib lub roob, saum dej hiav txwv nthwv dej, lossis saum lub tsheb ciav hlau ceev. Nws yog qhov zoo tshaj plaws uas koj tuaj yeem tsim nrog tsuas yog ob daim duab thiab qee qhov kev paub txog kev paub.

Ua tsaug rau digital technology thiab pheej yig ntsuab cov ntxaij vab tshaus, chroma keying tau dhau los ua tus neeg siv khoom zoo thiab siv tau ntau dua li yav dhau los. Los ntawm cov kev qhia hauv online mus rau cov pob khoom npaj thiab cov cuab yeej software rau cov pib tshiab, muaj ntau cov kev pab tawm rau txhua tus neeg xav pib nrog chroma keying. Txawm hais tias koj tab tom nrhiav los tsim cov teebmeem tshwj xeeb zoo nkauj lossis tsuas yog ntxiv qee qhov kev pom zoo rau koj cov yeeb yaj kiab thiab cov duab, suav nrog chroma yuam sij rau hauv koj cov duab yog paub tseeb tias yuav pab koj kom tau txais txiaj ntsig ntawm koj cov duab - cia li xyuas kom tseeb tias koj xyaum ua ob peb txhaj tshuaj ua ntej ua ntej tackling advanced ntsuab screen tricks!

Nyob zoo, Kuv yog Kim, niam thiab ib tus neeg nyiam nres nrog keeb kwm yav dhau los hauv kev tshaj tawm thiab kev txhim kho lub vev xaib. Kuv muaj kev mob siab rau kev kos duab thiab kev ua yeeb yam, thiab tam sim no kuv tab tom dhia taub hau ua ntej mus rau hauv lub ntiaj teb nres. Nrog rau kuv qhov blog, Kuv tabtom qhia kuv cov kev kawm nrog koj.