Xa kuziwa ekusebenzeni kunye iifayile zomfanekiso Kwikhompyuter yethu, sinenani elikhulu lefomati esinazo, zonke zinezibonelelo kunye nokungalunganga. Ezimbini zezona zidumileyo ziifomathi zeJPG kunye neJPEG. Enyanisweni, zimbini ezisetyenziswa kakhulu. Kungenxa yoko le nto umbuzo abazibuza wona abasebenzisi abaninzi ngulo ulandelayo: Yeyiphi eyona ilungileyo? Ngowuphi umahluko phakathi kweJPG kunye neJPEG?
Akunyanzelekanga ukuba ube noqwalaselo kakhulu ukuze uqaphele ukuba amagama eJPG kunye neJPEG ayafana kakhulu. Inyaniso kukuba abantu abaninzi bayababhida baze bacinge ukuba bayafana. Kwaye azihambi kakubi, kuba, eneneni, zombini iJPG kunye neJPEG zizongezo zefayile ezimbini ezibhekiselele kwifomathi yomfanekiso wedijithali. Siyicacisa ngezantsi:
Umba we-nomenclature
JPEG sisishunqulelo se IQela leeNgcali zeFoto, Umyili weqela lezobuchwepheshe wefomathi yegama elifanayo elisetyenziswa ngokubanzi kwiikhamera zedijithali, kwiintanethi zentlalo kunye nakwezinye iindawo.
Nangona kunjalo, xa le fomati yakhululwa, emva ngo-1992, phantse zonke iikhomputha zasebenzisa inkqubo yeMicrosoft ye-MS-DOS. Ukususela kule nkqubo ixhasa kuphela izandiso zefayile ezinoonobumba abathathu, ulwandiso lweJPEG kuye kwafuneka lucuthwe ngokungathintelekiyo kwiJPG. Kwaye yile ndlela eyathunyelwa ngayo kamva kwiinguqulelo zokuqala zeWindows.
Ngakolunye uhlangothi, ulwandiso lwe-jpeg aluzange lubangele nayiphi na ingxabano kwiikhomputha ze-MacOS, eziqhubeka ziyisebenzisa ngaphandle kwengxaki. Ngaloo ndlela sifika kwimihla yethu, apho Zombini izixhobo zeWindows kunye neApple ziyaqaphela kwaye zisebenzisa iifayile zeJPG kunye neJPEG phantse ngokutshintshana.
Ke ngoko, kunokuthatyathelwa kuyo yonke le nto ukuba umahluko phakathi kwezi fom zimbini ngumbandela nje wokwenziwa kwamagama. Akukho nto ingaphaya koko.
Guqula iJPG ibe yiJPEG kwaye ngenye indlela
Kuba umahluko phakathi kweJPG kunye neJPEG zisemoyeni hayi ngokwesiseko, xa usebenzisa ifomathi enye okanye enye akukho mahluko.
Umzekelo, xa ufuna ukwenza ukuguqulwa kwefomathi kunye Guqula umfanekiso ukusuka kwiJPG ukuya kwiJPEG, sifumana isimanga: akufuneki wenze nantoni na! Kuya kwenzeka okufanayo xa uzama ukwenza umsebenzi kwelinye icala.
Ngezizathu ezifanayo, nayiphi na inkqubo yokuhlela umfanekiso iya kuvula kwaye iphathe iifayile nge-.jpeg ulwandiso ngendlela efanayo naleyo inolwandiso lwe-.jpg. Uya kubathatha njengabalinganayo, ngokusisiseko kuba benjalo.
JPG okanye JPEG: Yeyiphi engcono?
Ukuba sithathela ingqalelo ukuba zombini iJPG kunye neJPEG ziindlela ezimbini ezahlukeneyo zokubiza uhlobo olufanayo lweefayile, umbuzo ongcono "ulahlekelwa yiyo yonke intsingiselo.
Xa sithetha ngokubanzi, kunokuthiwa kunjalo imifanekiso ye-raster 24 bit (i-bitmaps yomfanekiso), ezithande ukuba nosetyenziso olufanayo kwaye ziphulukane nepesenti ethile yomgangatho xa zigcinwa. Ezi fayile zigcina imifanekiso eyenziwe kwi-RGB (Ebomvu, eluhlaza, eluhlaza okwesibhakabhaka) apho banokumela khona ukuya kuthi ga kwi-16 yezigidi zemibala. Akukho mathandabuzo ukuba yifomathi (okanye iifomati) ezinemibala egqwesileyo kwaye ilungele ukusetyenziswa kwiifoto.
Ukusetyenziswa okungacacanga kweJPG okanye iJPEG kucetyiswa ziingcali ukuba zibonise iifoto kwiwebhu ngaphandle kokuthatha indawo eninzi kwiseva yethu. Into esebenzayo ngokwenene. Xa ugcina imifanekiso, ulwazi olungabalulekanga kangako luyalahlwa, okwenza ifayile ithathe phakathi kwe-50% kunye ne-75% ngaphantsi.
Ngeso sizathu, zombini iJPG kunye neJPEG ziyaqwalaselwa iifomati zokucinezela ezilahlekileyo. Kule ngongoma ngokucacileyo bangaphantsi kwezinye iifomati ezifana ne-BMP, apho kungabikho ukulahleka komgangatho wesithombe. Ukuba into esiyifunayo kukunciphisa oku kusilela, enye indlela elungileyo kukusebenza ngeefayile zeRAW JPEG. Ngayo, siya kukwazi ukukhetha izinto ezihlelekayo phambi kokugcina inguqulelo yokugqibela.