Ziziphi zonke iindawo kunye neengqungquthela ezigubungelayo ngamanye amaxesha ndibona kwi-screen yami yeTV?
Xa sibheke inkqubo okanye i-movie kwiTV okanye i-screen projection screen, sifuna ukubona imifanekiso ehlambulukileyo ngaphandle kokuphazanyiswa, kwaye ngaphandle kwempahla. Ngelishwa, kukho iziganeko apho kungenzeki. Izinto ezimbini ezingathandekiyo, kodwa eziqhelekileyo, onokuzibona kumabonakude wakho okanye kwesikrini sokubonakala kwindlela yokubukela yi-Macroblocking kunye nePixelation.
Yiyiphi i-Macroblocking
I-Macroblocking yi-video yomsebenzi apho izinto okanye indawo zevidiyo zibonakala ngathi zenziwe ngezikwere ezincinci, kunokuba zifumane iinkcukacha ezifanelekileyo kunye nemigca elula. Iibhloko zingabonakala kulo mfanekiso, okanye kwiindawo ezithile zomfanekiso. Izimbangela zokuqhaqhaqhaqhaza zihambelana nenye okanye ngaphezulu kwezi zinto ezilandelayo: ukuxilwa kwevidiyo , ukuhanjiswa kwedatha, ukuphazanyiswa kwamagama kunye nokusebenza kwevidiyo.
Xa i-Macroblocking iyona ephawulekayo
I-Macroblocking ibonakala kakhulu kwikhebula, i-satellites kunye neenkonzo ze-intanethi zokusasaza ngezo nkonzo ngamanye amaxesha zisebenzisa i-compression excessively video ukwenzela ukufakela izithuba ezingaphezulu kwiziseko zabo zokuqala.
I-Macroblocking nayo iyakwenzeka, ukuya kwizinga elincinci, ngexesha lokusasazwa kwe-TV emoyeni. Imiphumo yayo ibonakala kakhulu kwiinkalo zeprogram kunye nenkqubela ephakamileyo (ibhola yebhola ngumzekelo oqhelekileyo) njengoko kufuna ukuba idatha yevidiyo idluliselwe nantoni na.
Enye into ebangela ukuba ukudibanisa kukuphazamiseka okuphambeneyo kokusasazwa, ikhebula okanye uphawu lokusakaza. Ukuba oko kwenzeka, ungabona umfanekiso osesikhashana oboniswe kwi-TV yakho okanye kwesikrini esilungeleyo esenziwe ngamabango kunye nemigoqo engqambileyo.
I-Macroblocking ingaba yiphumo lokusetyenziswa kakubi kwevidiyo kunye / okanye ukuphakanyiswa kwindlela yokudlala okanye ifowuni yokubonisa. Ngokomzekelo, ukuba unomdlali weDVD okhuselekileyo ongenakukwazi ukucwangcisa nokukhuphula ividiyo kwizinga eliphezulu ukuya kwi-HD isisombululo ngokukhawuleza, unokubona ezinye iziganeko eziphambili ze-macroblocking, kwakhona, ngokubonakalayo ngexesha leemifanekiso ezihamba phambili kunye nezikhalazo. I-Macroblocking ingabonakala nakwi-TV, i-Cable / Satellite-broadcast (ikakhulukazi kwimicimbi yezemidlalo) apho ukunyathela okukhawulezayo kwaye kunye nesevisi yokusasaza okanye i-TV yakho ayikwazi ukuqhubeka. Kwakhona, ukuba isivinini sakho se- intanethi asikhawulezi ngokukhawuleza , oko kunokubangela nemiba enokubambisa ngokuqulathe umxholo.
Pixelation
I-Macroblocking ngamanye amaxesha ibizwa ngokuba yi-pixelation, kwaye nangona kunjalo, i-pixelation yinto ephawulekayo, inqanaba elinyukayo lempembelelo ngezinye iinkalo elibonakalayo kunye nemigca yezinto ngokubhekiselele kwimvelaphi, okanye kwimida engaphakathi, njengeentloko entloko okanye emzimbeni. I-pixelation inikeza izinto ezibonakalayo ezintle. Ngokuxhomekeka kwisisombululo somfanekiso, ubungakanani bekrini okanye indlela osondeleyo okanye ekude uhlala kuyo kwisikrini, umphumo wepikelation ungabonakala ngakumbi okanye ungabonakali.
Indlela efanelekileyo yokuqonda i-pixelation kukuthatha isithunzi usebenzisa ikhamera yedijithali okanye ifowuni kwaye uyibuke kweso sixhobo sePC okanye i-laptop. Emva koko usondeza okanye uphuse ubukhulu bomfanekiso. Xa ukongeza okanye uchukumise umfanekiso, umfanekiso ukhangeleke, kwaye uya kuqala ukufumana imiphetho ejikelezekileyo kunye nokulahlekelwa kweenkcukacha. Ekugqibeleni, uya kuqala ukuqaphela ukuba izinto ezincinci kunye nemida yezinto ezinkulu ziqala ukubonakala ngathi uchungechunge lweebhloko ezincinci.
I-Macroblocking nePixelation kumaDVD eRekhodiweyo
Enye indlela onokujamelana ngayo kunye ne-pixelation kwi- DVD eqoshiwe . Ukuba umrekhodi wakho weDVD (okanye umlobi we-PC-DVD) akanalo isantya esaneleyo sokubhala i-disc okanye ukhetha ii-modes zokurekhoda ezi-4, 6, okanye ezi-8 (okwandisa inani lokuncintwa elisetyenzisiweyo) ukwenzela ukuba ulungele ixesha elithile levidiyo kwi-disc , umrekhoda weDVD angenako ukuwamkela inani lemali engenayo yevidiyo.
Ngenxa yoko, unokuphela kunye namafomathi ahlahlileyo aphakathi, ukuxiliswa kwepixelation kunye nemiphumo ye-macroblocking ngezikhathi. Kule meko, ekubeni iifayile eziphosiweyo kunye ne-pixelation kunye / okanye imiphumo ye-macroblocking empeleni ibhaliswe kwi-disc, akukho mveliso eyenziweyo yokwenziwa kwevidiyo eyakhiwe kwi-DVD player okanye iTV ingawasusa.
Ngaphantsi
I-Macroblocking kunye nePixelation yizinto ezinokuthi zenzeke ngelixa zibukela umxholo wevidiyo ukusuka kwimithombo eyahlukeneyo. Ekubeni i-macroblocking kunye ne-pixelation inokubangelwa nayiphi na into emininzi, kungakhathaliseki ukuba yeyiphi i-TV, unokufumana iziphumo zazo ngezinye izihlandlo.
Nangona kunjalo, iikhomputha zevidiyo eziphuculweyo (ezifana neMpeg4 kunye ne- H264 ) kunye nabacwangcisi bevidiyo abacocekileyo kunye nabahlaziyi be-upscalers baye banciphisa iziganeko zokucoca nokupakisha kwibhodi kwiinkonzo zokusasaza, i-cable kunye ne-streaming, kodwa ngezinye izikhathi ukuphazanyiswa kwamangqangi ngamanye amaxesha akunakukhutshwa.
Kwakhona, ku funeka kuqatshelwe ukuba i-macroblocking kunye ne-pixelation sinokuthi zenziwe ngamanye amaxesha ngenjongo yokudala umxholo okanye abapapashi, njengokuba xa ubuso bomntu, iiplati zelayisenisi yemoto, izixhobo zomzimba zangasese okanye olunye ulwazi oluchanekileyo lugcinwe ngenjongo ngumniki-mveliso obonakalayo ababukeli beTV.
Ngamanye amaxesha kwenziwa ngeendaba zeendaba zeTV, imiboniso ye-TV, kunye nemimangaliso yezemidlalo apho abantu bengabanikanga imvume yokusebenzisa umfanekiso wabo, ukukhusela abantu abathinjwa abathintekayo ekubanjweni ngexesha lokubanjwa okanye ukukhupha amagama egama elifakwe kwii-tee-shirt okanye iihappy.
Nangona kunjalo, ukusetyenziswa okubalulekileyo, i-Macroblocking kunye nePielelation ngokuqinisekileyo ayifuni izinto ezingabonakaliyo ofuna ukuzibona kwi-TV yakho.