Itekhnoloji yevidiyo ekhoyo namhlanje yidijithali. Xa babengekakhuli, iingcali zatsho ukuba ividiyo yedijithali yayimbi kakhulu kune-analog, kuba le yokugqibela inolwazi ngakumbi. Nangona oku kwakuyinyani ekuqaleni, akusenjalo nanamhlanje. Inkqubela phambili eyenziweyo kule minyaka idlulileyo yenze ukuba kube nakho ukubamba ulwazi oluninzi ngakumbi kumfanekiso ngamnye kwaye oku kuyasebenza kwicandelo lobungcali nakulawo amateurs. Kwiminyaka nje elishumi eyadlulayo, abasebenzisi babeneenkqubo zokurekhodwa kwevidiyo ye-analog ekwaziyo ukumela imigca engama-250, ngelixa iinkqubo zedijithali zanamhlanje zinokufunyanwa imifanekiso enemigca engaphezu kwama-500, oko kukuthi, ngaphezu kokuphindwe kabini. Imifanekiso yevidiyo okwangoku ikwidijithali kuyo yonke inkqubo, ukusuka ekubanjweni ngokudluliselwa, ukugcinwa kunye nokuhlelwa, ukumelwa kwizikrini zesizukulwana samva nje. Oku kubaluleke kakhulu. Ngelixa ukucaciswa kwevidiyo ye-analog kunye nenkcazo yemifanekiso zalahleka ngenyathelo ngalinye kunye nokusetyenziswa gwenxa apho i-original yathotyelwa khona, kwividiyo yedijithali akukho hlobo lokuphambuka okanye ukunxiba phakathi kwezizukulwana.
Njengoko uyazi, ixesha lokuveliswa kwevidiyo lisetyenziselwa ukuchaza iziphumo zokulandelelana ngokulandelelana apho ividiyo ibekwe khona. Xa silahla eyokuqala kwi-pc, sinesizukulwana sokuqala. Ukuba silungisa umbala womfanekiso ukuphelisa isamente etyheli, umzekelo, isiphumo siya kuba sisizukulwana sesibini sevidiyo, njalo njalo. Kwividiyo endala ye-analog, izizukulwana ezingakumbi, umgangatho usezantsi.
IiCamcorder zinendlela eyodwa yokufumana imifanekiso. Ababambisi njengendawo eqhubekayo njengoko sele uyazi. Bayayenza besebenzisa iipikseli, elilelona yunithi yokulinganisa incinci. Ukwenza oku, bahlula umfanekiso ngokwamanani amancinci kwaye babele nganye kuzo amaxabiso ahlukeneyo emathematika ngokuxhomekeke kubungakanani bokukhanya kunye nombala obalaseleyo kwisiqwenga ngasinye. I-pixel nganye iyahambelana neseli kwi-CCD. Ulwazi oluvela kuzo zonke iiseli luqokelelwe kwiphakheji yolwazi ehambelana nomfanekiso opheleleyo ukuze iprosesa lomfanekiso likwazi ukuyakha kwakhona kamva. Ukwakhiwa kwakhona kwenziwa kwinqanaba ngenqaku, kusibeka ngokulandelelana kunye nemibala efunekayo kunye namandla. Yinkqubo egqityiweyo kumawakawaka omzuzwana.
Gcina ukhumbula ukuba ukuqonda umqondiso wevidiyo, kuya kufuneka wazi iikhonsepthi ezimbini: ukukhanya kunye ne-chrominance. Ukukhanya kubonisa ukukhanya komqondiso, into efana nomfanekiso we-monochrome kunye namandla ayo ahlukeneyo engwevu. IChrominance ibonelela ngolwazi malunga nobunzulu bombala womfanekiso, kodwa ngokwenxalenye yayo nganye imibala ephambili: bomvu, luhlaza, noblowu.
Njengoko ubona, sithetha ngemifanekiso endaweni yeevidiyo, ngokungathi ii-camcorder zithatha imifanekiso; Awuyi kuba kude nenyani ukuba yindlela otolika ngayo. Uyazi ukuba i-cinema asingomfanekiso ohambayo, kodwa ukulandelelana okukhawulezayo kweefreyimu ezingama-24 ngomzuzwana. Ngenxa yento yokuqonda koluntu ebizwa Ukuqhubeka kombonoAsikwazi ukubona imifanekiso ngokwahlukeneyo, kodwa siyayibona njengentshukumo eqhubekayo. Inomdla kuba nangona emva kwamashumi eminyaka bhanyabhanya kunye nomabonwakude sifunde ukwahlula le mifanekiso ishukumayo kwinyani, ababukeli bokuqala abaya kumboniso wefilimu babaleka benkwantya phambi koololiwe obesiya ngakwisikrini, kuba bebengekafundi ukuchonga umfanekiso we-cinematic ovela kwinyani. Ngapha koko oku kwenzekile xa kuqikelelwa ukufotwa kwabantakwabo baseLumiere «Lukufika koololiwe kwisikhululo se la ciotat»
Inyani yile yokuba ividiyo kunye nefilimu ziyafana, nangona ziyahluka kubuchwephesha bokufaka imifanekiso. I-emulsions yesilivere iyasetyenziswa kwi-cinema, ngelixa ividiyo isebenzisa ithuba lokukhanya kokuguqula ibe ngumbane kunye nokunye. Nangona kunjalo, xa sibukele ividiyo yevidiyo, ayiqhubeki. Sijonge ngokulandelelana kweefoto zedijithali, kwinqanaba leefreyimu ezingama-25 ngomzuzwana. Isizathu kukuba eSpain kusetyenziswa inkqubo kamabonwakude IPAL (Umgaqo oTshintshanayo weSigaba), emele umfanekiso ngemigca ethe tyaba engama-625, kwaye ibonisa imifanekiso engama-25 ngomzuzwana. Ngokuqinisekileyo uvile ngenkqubo I-NTCS (IKomiti yeNkqubo yeThelevishini kaZwelonke), zisasazwa yi-United States ne-Japan, ebonisa imifanekiso engama-30 ngomzuzwana kwimigca engama-575 inye. Iingcali zibiza nganye yale mifanekiso "mfanekiso", uguqulo lwegama lesiNgesi isakhelo.
Inika umdla kakhulu. Imibulelo emininzi.