Isizathu Sokuba Udinga Ukulinganisela Ukuqapha Kwakho
I-Gamma isebenzisana ne-nonlinear yokusebenzisa ikhodi futhi ihlukanise amagugu okukhanya emifanekisweni enamanje futhi ehambayo. Isetshenziselwa ukuchaza ukuthi inani lamanani le-pixel lihlobene kanjani nokukhanya kwalo kwangempela.
Nakuba i-gamma kunzima kakhulu ukuyiqonda ngokugcwele, kubalulekile ukuba abathwebuli bezithombe zedijithali baqonde ukuthi kusebenza kanjani ezithombeni. I-Gamma ithinta kakhulu indlela isithombe sedijithali esibheka kwikhompyutha.
Ukuqonda i-Gamma ku-Photography
Igama le-gamma lisebenza emazwini wezithombe lapho sifuna ukubuka izithombe kubakhokeli bekhompuyutha. Umqondo ubalulekile ukuqonda (ngisho nje phezulu) ngoba umgomo wukuthi wenze isithombe se-digital esibukeka kangcono ngangokunokwenzeka kumalindeli alinganiselwe nabangalingani.
Kunezinhlobo ezintathu ze-gamma ezihilelekile ezithombeni zedijithali:
- Isithombe se-Gamma - Isetshenziswa isofthiwe yekhamera noma i- RAW yokuguqulwa kwesithombe ukuguqula isithombe sibe yifayela elicindezelweyo (JPG noma TIFF).
- Bonisa i-Gamma - Isetshenziswa ngabakhokeli bekhompuyutha namakhadi wevidiyo ukuze ulungise ukukhishwa kwesithombe. I-gamma ephezulu yokubonisa izodala izithombe ezibonakala zibe mnyama futhi zihluke kakhulu.
- I-Gamma yesistimu - Ebizwa nangokuthi 'ukubuka i-gamma,' lokhu kumelela wonke amagugu we-gamma asetshenziselwa ukubonisa isithombe: ngokuyisisekelo, isithombe nokubonisa i-gammas ehlangene. Isibonelo, isithombe esifanayo esibukwe kumqapha nge-display ehlukile ye-gamma ngeke sibonakale ngoba i-gamma 'yokubuka i-gamma' ihlukile.
Kusuka Ikhamela Ukuqapha: Indlela Gamma Isebenza ngayo
I-pixel ngayinye esithombeni se-digital inikezwa inani elinquma izinga layo lokukhanya. Ukuqapha ikhompyutha isebenzisa lezi zindinganiso uma ubonisa izithombe zedijithali. Noma kunjalo, abahloli bekhompuyutha be- CRT kanye ne- LCD kumele basebenzise lezi zindinganiso ngendlela engavamile, okusho ukuthi amanani kufanele ahlelwe ngaphambi kokuba aboniswe.
Ukuphuma ngaphandle kwebhokisi, ukuqapha ikhompyutha ngokuvamile kune-gamma ye-2.5. Amakhamera amaningi e- DSLR anamuhla adubula ngesikhala sombala we-sRGB noma i-Adobe RGB futhi asebenza ku-gamma ye-2.2.
Uma isikrini sekhompyutheni singalinganiselwe ukufanisa le-2.2 ye-gamma ke izithombe ezivela ku-DSLR zingabonakala zimnyama futhi zifani ngokuphelele nezithombe ezidubule kuqala!
Kungani ukukala kwe-Monitor kuqakathekile?
Kuzo zonke lezi zizathu iqoqo lamazinga selihlelwe ngakho isithombe esithombeni sakho sizobukeka njengesithombe esifanayo ekuqapha komakhelwane wakho. Le nqubo ibizwa ngokuthi i- calibration futhi isetshenziselwa ukuthola ukufundwa kwe-gamma ethize okufana nakho konke okuqapha ukulinganiswa emhlabeni.
Akukho photographer, kungakhathaliseki ukuthi u-amateur noma uchwepheshe, kufanele asebenze ngezithombe ngaphandle kokuqapha okulinganisiwe. Kuyinto yokutshalwa kwezimali okuncane okuzoqinisekisa ukuthi zonke izithombe ozibelana nge-intanethi noma ukuthumela ebhokisini lesithombe okufanele liphrintiwe libukeka ngendlela ohlose ngayo. Akusizi ngalutho ukudala isithombe esibonakala sihle kuwe futhi sibonakala sinesabekayo kuwo wonke umuntu!
Ungasebenzisa izindlela ezihlukahlukene zokulinganisela umqapha wakho, kufaka phakathi izinketho ze-hardware nezesofthiwe.
Umsebenzisi wekhompiyutha ojwayelekile akanakulinganisa ukuqapha kwawo. Lokhu kungabangela inkinga kubathwebuli bezithombe abazama ukubonisa (noma ukuthengisa) izithombe zabo. Kodwa-ke, uma umlenze wakho ulinganisiwe, usuke wenza konke okusemandleni akho ukukhombisa izithombe zakho ngendlela engcono kakhulu. Okusemandleni ongakwenza ukuchaza ukulinganisela kunoma yimuphi umbukeli obona isithombe 'esimnyama kakhulu' noma 'esincane kakhulu.'