Ana amfani da asalin kore ko “chromakey” yayin harbi don sauya mai zuwa tare da wani. Maɓallin Chroma na iya zama launi daban, kamar shuɗi, amma an fi son kore saboda wasu dalilai da yawa.
Tabbas, yin harbi a kan asalin kore an yi shi ne bayan rubutun da aka riga aka ɗauka a ciki ko abun da ke ciki.
A cikin wannan darasi, zamuyi kokarin cire kore asalin daga hoto a Photoshop.
Cire tushen kore
Akwai hanyoyi da yawa don cire bango daga hoton. Mafi yawansu duk duniya ne.
Darasi: Share asalin baki a Photoshop
Akwai wata hanyar da ta dace don cire maɓallin chroma. Yana da kyau a fahimci cewa tare da irin wannan harbi, harbi da ba a yi nasara ba kuma za a iya juya, wanda zai zama da wuya kuma wani lokacin ba zai yiwu a yi aiki da shi ba. Don darasi, an samo wannan hoto na yarinya akan koren kore:
Mun ci gaba da cire chromakey.
- Da farko dai, kuna buƙatar fassara hoto a cikin sararin launi Lab. Don yin wannan, je zuwa menu "Hoto - Yanayin" kuma zaɓi abun da ake so.
- Na gaba, je zuwa shafin "Tashoshi" kuma danna kan tashar "a".
- Yanzu muna buƙatar ƙirƙirar kwafin wannan tashar. Da ita ne za mu yi aiki. Muna ɗaukar tashar tare da maɓallin linzamin kwamfuta na hagu kuma ja a kan gunkin a ƙasan palet ɗin (duba hotunan allo).
Palette tashoshi bayan ƙirƙirar kwafin ya kamata yayi kamar haka:
- Mataki na gaba zai kasance don ba da tashar mafi girman bambanci, wato, tushen yana buƙatar sanya gaba ɗaya baƙar fata, budurwa kuma fari. Ana samun wannan ta hanyar cika tashar ta fari da baki.
Tura gajeriyar hanya SHIFT + F5sannan taga cike gurbin zai bude. Anan muna buƙatar zaɓar fararen launi a cikin jerin zaɓi ƙasa kuma canza yanayin saƙo zuwa "Laaukata".
Bayan danna maɓallin Ok muna samun hoto mai zuwa:
Sannan muna maimaita ayyuka iri ɗaya, amma tare da launin baƙi.
Sakamakon cika:
Tunda ba a sami sakamako ba, to sai a sake cikawa, wannan lokacin yana farawa da baƙar fata. Yi hankali: da farko cika tashar ta baki, sannan fari. A mafi yawan lokuta, wannan ya isa. Idan bayan waɗannan ayyukan ba adadi ya zama fari fararen fata ba, kuma asalin baƙar fata ne, to sai a maimaita hanyar.
- Mun shirya tashar, to, kuna buƙatar ƙirƙirar kwafin ainihin hoto a cikin palet ɗin Layer tare da gajerar hanya CTRL + J.
- Kuma, je zuwa shafin tare da tashoshi kuma kunna kwafin tashar amma.
- Riƙe mabuɗin CTRL kuma danna maballin hanyar tashar, ƙirƙirar zaɓi. Wannan zaɓi zai ƙayyade tsarin amfanin gona.
- Danna kan tashar tare da suna "Lab"gami da launi.
- Je zuwa palette yadudduka, a kan kwafin bangon, sa'annan danna kan alamar mask. Za a share tushen kore nan da nan. Don tabbatar da wannan, cire ganuwa daga ɓangaren ƙasa.
Cire Halo
Mun kawar da tushen kore, amma ba haka bane. Idan ka zuƙo ciki, zaka iya ganin iyakar bakin bakin ciki, wadda ake kira ƙwallo.
Haske ne da wuya a sani, amma lokacin da aka sanya samfurin akan sabon bango, zai iya lalata abun da ke ciki, kuma kuna buƙatar kawar da shi.
1. Kunna abin rufe fuska, tsunkule CTRL kuma danna shi, yana loda yankin da aka zaɓa.
2. Zaɓi kowane kayan aikin rukuni "Haskaka".
3. Don shirya zaɓinmu, yi amfani da aikin "Ka gyara gefen". Maballin mai dacewa yana saman saman sigogi.
4. A cikin taga aiki, matsar da gefen zabi sannan ka fitar da “ladabi” pixels kadan. Lura cewa an saita yanayin dubawa don dacewa. "Da fari".
5. Saitawar karshe "Sabon rufi mai rufe fuska" kuma danna Ok.
6. Idan bayan aiwatar da waɗannan matakan wasu wuraren har yanzu suna cikin kore, za'a iya cire su da hannu tare da buroshi mai baƙi, suna aiki akan abin rufe fuska.
Wata hanyar da za a bi don ƙwato ƙwararren halo an bayyana dalla-dalla a cikin darasi, hanyar haɗi zuwa wanda aka gabatar a farkon labarin.
Don haka, mun sami nasarar kawar da tushen kore a cikin hoto. Wannan hanyar, kodayake yana da matukar rikitarwa, amma yana nuna ƙa'idar aiki tare da tashoshi yayin cire ɓangarorin hoto na hoto.
