Inyaniso Ngeefayile zeJPEG
Ngokuqhuqhuma kweeskripthi, iikhamera zedijithali kunye neWebhu yeWebhu yehlabathi, ifomathi yefayile yeJPEG ihamba ngokukhawuleza ibe yindlela yokufometha yedijithali kakhulu. Kwakhona oku kuqondwa kakubi. Nanku iqoqo leminye imfundiso engafanelekanga kunye neenyaniso malunga neemifanekiso zeJPEG.
I-JPEG yiPelo elifanelekileyo: Liyinyaniso
Nangona iifayile zivame ukuphela kwi-JPG enobumba abathathu, okanye i-JP2 ye-JPEG 2000, ifomathi yefayile ifakwe i-JPEG. Ingqungquthela yeQela loLuntu loPhuhliso lweeNgqungquthela, inhlangano eyenze ifomathi.
I-JPEG iLawula iHlabathi Ixesha ngalinye I-& # 39; ivuliwe kwakhona kunye / okanye igcinwe: Amanga
Ukuvula nje okanye ukubonisa umfanekiso we-JPEG ayilimazi nangayiphi indlela. Ukugcina umfanekiso ngokuphindaphindiweyo ngexesha leseshoni yokwenza efanayo ngaphandle kokuvala umfanekiso awuyi kuqokelela ilahleko ekumgangatho. Ukukopisha nokwenza kwakhona iJPEG akuyi kuvelisa nayiphi na ilahleko, kodwa abanye abahleli bezithombe bahlaziya i- JPEG xa umyalelo othi "Gcina njenge" usetyenziswa. Phinda uphinde uphinde usebenzise iiJPEG kumphathi wefayile kunokusebenzisa "Gcina njengeJPEG" kwinkqubo yokulungisa ukukhusela ilahleko.
I-JPEG iLawula iHlabathi Ixesha ngalinye I-& # 39; ivuliwe, ihleliwe kwaye igcinwa: Yinyaniso
Xa umfanekiso we-JPEG uvulwa, ukulungiswa nokugcinwa kwakhona kubangela ukuthotywa komfanekiso obongezelelweyo. Kubaluleke kakhulu ukunciphisa inani leeseshingi zokuhlela phakathi kwenguqu yokuqala kunye yokugqibela yesithombe seJPEG. Ukuba kufuneka wenze imisebenzi yokuhlela kwiiseshoni eziliqela okanye kwiinkqubo ezahlukeneyo, kufuneka usebenzise ifomati yomfanekiso engaphumeleli, njengeTIFF, BMP okanye iPNG, kwiiseshoni zokuhlela eziphakathi ngaphambi kokugcina inguqu yokugqibela. Ukugcinwa ngokuphindaphindiweyo kwiseshoni yokuhlela efanayo kuya kuvelisa umonakalo owongezelelweyo. Kwenzeka kuphela xa umfanekiso uvaliwe, uvula kwakhona, uhleliwe kwaye ugcinwa kwakhona.
I-JPEG iLawula iHlabathi Ixesha ngalinye I-& # 39; isetyenziswe kwiNkqubo yoLungiselelo lwePhepha: Ubuxoki
Ukusebenzisa umfanekiso we-JPEG kwiprogram yokwakheka kwephepha akuyi kuhlela umfanekiso wesiseko ukuze kungabikho mgangatho olahlekileyo. Nangona kunjalo, unokufumanisa ukuba amaxwebhu akho omhlathi aphezulu kakhulu kunomlinganiselo weefayile ze-JPEG ezifakiwe ngoba inkqubo nganye yeprogram yeprogram isebenzisa iintlobo ezahlukeneyo zoxinzelelo kwiifayile zohlobo lwazo,
Ukuba Ndiyicinezela i-JPEG Kwama-70 Ipesenti Emva kwexesha ukuyivula kwakhona kwaye uyixinzelele kumaphesenti angama-90, umfanekiso ogqityiweyo uza kubuyiselwa kwi-Quality Quality of 90 Percent: False
Okokuqala kulondoloza kuma-70 ekhulwini kufaka ilahleko esigxina kumgangatho ongenakubuyiselwa. Ukuphinda kwakhona kwiipesenti ezingama-90 kuphela kuzisa ukungcoliswa okongeziweyo kumfanekiso osele ulahlekelwe kakhulu kwizinga eliphezulu. Ukuba kufuneka udidekisile kwaye uvuselele umfanekiso we-JPEG, ukuseta umgangatho ofanayo ngexesha ngalinye kubonakala ukuvelisa ubuncinane okanye ukungabi nakwehla kweendawo ezingabandakanyiweyo zomfanekiso.
Umgaqo ofanayo wokumisela uchazwe nje awusebenzi xa ugquba i-JPEG, nangona kunjalo. Ukunyanzeliswa kusetyenziswa kwiibhloko ezincinane, ngokuqhelekileyo ukunyuka kwama-pixel ayi-8 okanye-16. Xa utshaya i-JPEG, yonke imifanekiso ishintshwe ukuze iibhloko zingahambelani kwiindawo ezifanayo. Elinye isofthiwe linikezela i-JPEGs, i- JPEGCrops yamahhala.
Ukukhetha Uhlobo olufanayo lweMigangatho yeeMpawu zeeJpegs ezilondoloziweyo kwiNkqubo enye iya kunika iziphumo ezifanayo Njengoko udidi olufanayo lweMigangatho yoMgangatho kwiNkqubo enye: buxoki
Izicwangciso zeMigangatho ayikho imimiselo kwiinkqubo zeprojekti zeekhompyutha Ukumiswa kwekhwalithi ye-75 kwinkqubo enye kunokubangela umfanekiso obuthathaka kakhulu kunomfanekiso ofanayo wokuqala ogciniweyo kunye nokulungiswa komgangatho we-75 kwenye inkqubo. Kwakhona kubalulekile ukwazi ukuba isofthiwe yakho iyabuza xa ubeka umgangatho. Ezinye iinkqubo zinenani eliphezulu kunye nomgangatho ophezulu kwinqanaba ukwenzela ukuba ukulinganiswa kwe-100 yinto esemgangathweni kunye noxinzelelo oluncinci. Ezinye iiprogram zisekela i-scale kwi-compress apho i-setting ye-100 yinto esemgangathweni kunye nokugqithisa okuphezulu. Ezinye ii-software kunye neekhamera zedijithali zisebenzisa iigama-magama ezinjengezantsi, eziphakathi kunye eziphakamileyo kwizicwangciso zekhwalithi. Bona iifoto-skrini ze-JPEG ukugcina ukhetho kwiinkqubo ezahlukeneyo zohlelo lwesofthiwe.
Ukubekwa kweMigangatho ye-100 ayiyi kuhlaziyikisa imifanekiso Yonke: Ubuxoki
Ukugcina umfanekiso kwifayile ye-JPEG ihlala izisa ukulahlekelwa kweyona mveliso, nangona ukulahleka kwimeko ephezulu ye-100 ayibonakali ngeso lesiso. Ukongezelela, ukusebenzisa ukulungiswa komgangatho we-100 xa kuthelekiswa nomgangatho ophezulu we-90 ukuya ku-95 okanye oko kuya kubangela ubungakanani befayile obuphezulu ngokuphathelele kwinqanaba lokulahlekelwa komfanekiso. Ukuba isofthiwe yakho ayinikezeli mboniso, zama ukulondoloza iikopi ezininzi zomfanekiso kwi-90, 95, kunye no-100 mgangatho kwaye uqhathanise ubungakanani befayili nomgangatho wesithombe. Amathuba awayi kubakho umehluko ohlukileyo phakathi komfanekiso we-90 no-100, kodwa ulwahlulo lobungakanani lunokuba luncedo. Hlalani nikhumbule ukuba ukuguquka kwemibala efihlakeleyo yempembelelo enye ye-JPEG yokunciphisa - kwanezicwangciso eziphezulu - ngoko i-JPEG kufuneka igwenywe kwiimeko apho ukuchaneka kombala okuchanekileyo kubalulekile.
I-Jpegs ehamba phambili Ikhuphe ngokukhawuleza kuneJpegs eziqhelekileyo: Ubuxoki
I-JPEG zihamba phambili zibonisa ngokukhawuleza njengoko zikhuphela ngoko ziza kuqala zivelise kumgangatho ophantsi kakhulu kwaye zicace ngokucacileyo de ukuba umfanekiso ukhutshwe ngokupheleleyo. I-JPEG eqhubekayo inkulu kwifayile yefayili kwaye idinga amandla amaninzi okucwangcisa ukulungisa nokubonisa. Kwakhona, enye isofthiwe ayinakukwazi ukubonisa i-JPEG yeenkqubela phambili - ngokukodwa iprogram ye-imaging yamahhala ehlanganiswe neenguqu ezidlulileyo zeWindows.
I-Jpegs idinga ukusetyenziswa kweMandla ngakumbi Ukubonakalisa: Iinyaniso
I-JPEG akumele ilandwe kuphela kodwa ididiwe kwakhona. Ukuba unokuqhathanisa ixesha lokubonisa i-GIF kunye ne-JPEG kunye nobukhulu befayili efanayo, i-GIF iya kubonisa ngokukhawuleza kunokuba i-JPEG kuba iskimu sayo sokunyanzelisa ayifuni amandla amaninzi okucoca ukuba ahlaziye. Ukulibaziseka okumbalwa akubonakali nakakhulu ngaphandle kwenkqubo epholileyo.
I-JPEG Ngaba ifom ye-All-Purpose Ifanelekile Ngayo nayiphi na imifanekiso: Inkohliso
I-JPEG ifaneleke kakhulu kwimifanekiso eninzi apho ifayile ifayile ibaluleke kakhulu, njengemifanekiso eya kuthunyelwa kwiWebhu okanye idluliselwe nge-imeyili kunye ne-FTP. I-JPEG ayifanelekanga kwimifanekiso emincinci ngaphantsi kweepikseli ezilikhulu ezimbalwa, kwaye ayifaneleka kwizikrini, imifanekiso kunye nesicatshulwa, imifanekiso eneemigca ebukhali kunye neebhloko ezinkulu zombala, okanye imifanekiso eya kulungiswa ngokuphindaphindiweyo.
I-JPEG Ikulungele Ukufumana Imifanekiso Yesikhathi Eside Ukugcinwa Kwezinto: Ubuxoki
I-JPEG kufuneka isetyenziswe kuphela kwi-archival xa i-disk space iyona nto ingqalelo. Ngenxa yokuba imifanekiso ye-JPEG ilahlekelwa ngumgangatho ngamnye ngexesha livuliwe, lihleliwe kwaye ligcinwe, lifanele likhunjulwe kwiimeko zokugcinwa kwemifanekiso xa imifanekiso idinga ukuqhutyelwa phambili. Njalo gcina ikhophi yenkosi engenakulahlekelwa yimuphi umfanekiso ongalindele ukuwuhlela kwakhona kwixesha elizayo.
I-JPEG Izithombe Don & # 39;
Unokucinga ukuba ubone i-JPEG ngokungafihli kwiWebhu, kodwa umfanekiso wenziwe ngenjongo yangaphambili ehlanganiswe emfanekisweni ngendlela ebonakala ingagqibekanga kwikhasi lewebhu kunye nemvelaphi efanayo. Oku kusebenza ngokusemgangathweni xa imvelaphi yindlela yokuzifihla apho iindawo ezingabonakaliyo zingabonakali. Ngenxa yokuba ii-JPEG ziphantsi kokutshintsha kombala, kunjalo, ukugqithwa kungabonakali kukhululekile kwezinye iimeko.
Ndiyakwazi ukugcina indawo yeDisk ngokuguqula ii-GIF zeMifanekiso kwiJpegs: buxoki
Imifanekiso ye-GIF sele iyancitshiswe ibe mibala engama-256 okanye ngaphantsi. Imifanekiso ye-JPEG ifanelekile kwimifanekiso emikhulu yezithombe kunye nezigidi zembala. I-GIF zikulungele imifanekiso eneemigca evukileyo kunye nemimandla emikhulu yombala omnye. Ukuguqula umfanekiso oqhelekileyo we-GIF kwi-JPEG kuya kubangela ukutshintsha kombala, ukuphazamiseka kunye nokulahleka kumgangatho. Isifayile esiphumela siza kuba sikhulu. Ngokuqhelekileyo ayikho nayiphi na inzuzo yokuguqula i-GIF ukuya kwi-JPEG ukuba umfanekiso we-GIF wangaphambili ungaphezu kwama-100 Kb. I-PNG yinto engcono.
Zonke iifayile ze-JPEG ziPhakamileyo eziPhakamileyo, ii-Amafoto zeMpawu zokuPrinta: Amanga
Umgangatho wokuprinta umiselwe ngamanqaku eepekseli yomfanekiso. Umfanekiso kufuneka ube neepikseli ezingama-480 x 720 ngokuprinta kwinqanaba lomgangatho we-4 "x 6" ifoto. Kufuneka ube neepekseli ezili-960 x 1440 okanye ngaphezulu kwiphepha eliphambili ukuya kuphrinti ephezulu. I-JPEG idla ngokusetyenziswa kwimifanekiso ukuba idluliselwe kwaye iboniswe ngeWebhu, ngoko le mifanekiso imiselwe ukunciphisa isicatshulwa kwaye ayiququzeli idatha eyaneleyo yepikseli ukuze ipapashwe kakuhle. Unokunqwenela ukusebenzisa i-setting yekhamera yokupakanyiswa kwekhwalithi ephakamileyo xa ulondoloza i-JPEG kwikhamera yakho yedijithali ukunciphisa umonakalo obangelwa ukunyanzelisa. Ndibhekiselele kwisimo sokumgangatho sekhamera yakho, kungeyiyo isisombululo esichaphazelekayo. Ayikho yonke ikhamera yedijithali enika oku khetho.