Esihlokweni esilandelayo sizobheka i-DCRaw. Lokhu kungenye application yomthombo ovulekile esetshenziselwa ukufunda amafomethi wesithombe anombala oluhlaza (RAW, CR2, ect ...). Ifunda ngokuyisisekelo lawo akhiqizwa amakhamera edijithali aphezulu kakhulu. I-DCRaw iyithuluzi elilula ukufaka ngalo esingakwazi ngalo guqula lezi zithombe eziluhlaza zibe yifomethi ejwayelekile ye-PPM ne-TIFF. Lolu hlelo lubhalwe nguDave Coffin ngolimi lwe-ANSI C, ngakho-ke luyi-cross-platform ngokwemvelo.
Lolu hlelo yi- ithuluzi lomugqa womyalo. Lokhu kuthatha uhlu lwamafayela ukuwacubungula, ngaphezu kwezinketho zesithombe osithandayo. Lokhu kwenza iDCRaw isebenziseke kalula kusuka kukhonsoli, kepha kube nzima kakhulu ukuyisebenzisa kusuka ezinhlelweni zangaphandle. Lolu hlelo luyisisekelo sezinhlelo zokusebenza ezahlukahlukene ezisezingeni eliphezulu zokucubungula imidwebo, njengababukeli nabaguquli, mahhala kanye nokuphathelene.
Njengoba ngisho, iDCRaw iyithuluzi lomugqa womyalo wokuguqula izithombe eziluhlaza kufomethi ye-TIFF noma ye-PPM. Kubuye futhi iyahambisana nenqwaba yamakhamera futhi inikeza abasebenzisi amapharamitha amaningi ukuthola umphumela oyifunayo.
Lapho nje sesithole umphumela ogculisayo, Kunconywa ukusebenzisa i-DCRaw ngefayela le-batch ukwenza lula ukuguqulwa kwenqwaba yamafayela amaningi.
Faka i-DCRaw ku-Ubuntu 17.04
Ukufaka i-DCRaw ku-Ubuntu sizobheka ku i-PPA yayo ehambisanayo. Ukuze senze lokhu, sivula i-terminal (Ctrl + Alt + T) bese sibhala okulandelayo kuyo:
add-apt-repository ppa:dhor/myway
Lapho okugciniwe sekufakiwe, sivuselela uhlu lwesoftware bese siqhubeka nokufaka sisebenzisa umbhalo olandelayo:
sudo apt update && sudo apt install dcraw -y
Uma konke kuhambe kahle ngesikhathi sokufakwa, uhlelo lwe-DCRaw luzosebenza kahle.
Qalisa nge-DCRAW
Ngalesi sibonelo, futhi imibhalo umbhali asishiyela yona ohlelweni, abasebenzisi bangadlala ngalezi zinketho futhi bakhe imibhalo yethu. Lokhu kuyisiqalo nje, amathuba alolu hlelo cishe awapheli.
Ukwazi kabanzi ngezinketho ezitholakala kulolu hlelo, singenza umyalo olandelayo ku-terminal nakuhlu lwe Izinketho ezitholakalayo zizovela ngezansi:
dcraw
Indlela enhle yokuqonda ukuthi lolu hlelo lusebenza kanjani ngokubheka isibonelo esisebenzayo nokuxosha izinketho ezisetshenziswe kulo. Isibonelo kungaba yileso esingabonakala kusithombe-skrini esedlule.
dcraw -v -w -H 1 -o 0 -q 3 -4 -T 1334012583_-mg-9952.CR2
Izinketho ezisetshenzisiwe
- -v: ngale nketho, DCRAW izosikhombisa ilogi elenziwa esikrinini kuyo yonke inqubo yentuthuko.
- -w: ikhamera ibhalansi emhlophe. Uma besisebenzise -a esikhundleni salokho, besingaphoqa i-DCRAW ukuthi ilinganise ibhalansi emhlophe. Lokhu kuzosuselwa kwisampula esenziwe esithombeni sonke. Kungaba into efana nekhamera ezenzakalelayo ye-WB.
- -H 1: Le mfanelo ewusizo isetshenziselwe chaza ukwelashwa okuzonikezwa yiDCRAW emishayweni ephakeme. Sizokwazi ukuguqula izindawo ezishisiwe zibe mpunga ongathathi hlangothi (2), noma sisebenzise ukuhlangana okuqondile ukuthola lezo zibani ezishisiwe (0). Inketho 1 yiyona engivame ukuyibeka lapho ngifuna ukuguqula ibhalansi emhlophe yangempela futhi isithombe sivezwe kahle. Iqinisekisa ukuthi lapho siguqula ibhalansi emhlophe, asihambisi i-histogram yanoma yisiphi isiteshi endaweni yamaphikseli ashile.
- -o: le nketho ibaluleke kakhulu ukusetha iphrofayili yombala wefayela lokukhipha. Kulokhu, ngenani elingu-0 silitshela ukuthi lingenzi noma yikuphi ukuphathwa kombala futhi lilondoloze isikhala sesithombe sokuqala. Kepha singaguqulela ku-sRGB, AdobeRGB, ProPhoto ...
- -q [0-3]: ngale nketho sizokhombisa i-algorithm yokuhumusha i-matrix. Imvamisa, inani 3 (AHD) lisebenza kahle kakhulu ngoba iyi-algorithm eguquguqukayo, yize kungenzeka ukuthi kumamodeli athile wekhamera udinga ukuzama ezinye futhi uzigcinele izithombe zakho.
- -4: uma singafaki le nketho, isithombe esizophuma sizoba nemibala engu-8 yombala kusiteshi ngasinye. A) Yebo siqinisekisa izithombe ezingama-16-bit.
- -T: khiqiza ifayela le-TIFF. Kungcono kakhulu uma kamuva sizosebenza isithombe ohlelweni lokuthinta kabusha.
Khipha i-DCRAW
Ukuqeda lolu hlelo ohlelweni lwethu lokusebenza, kuzofanele silandele kuphela izinyathelo ezijwayelekile. Okokuqala susa okugciniwe ngokuthayipha ku-terminal (Ctrl + Alt + T) umyalo olandelayo:
add-apt-repository -r ppa:dhor/myway
Manje sesingasusa uhlelo. Ku-terminal efanayo sibhala:
sudo apt remove dcraw
Uma usizo lohlelo nesibonelo esikule ndatshana kunganele, noma ngubani oludingayo angasebenzisa okulandelayo Ukufundisa mayelana ne-DCRAW (ngeSpanishi).