Jikelezisa JPEG

Fihla Okuthe tyaba JPEG images

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Iyalayisha

Indlela yokujika JPEG

1 Layisha phezulu i JPEG images eyaphuma ngendlela engafanelekanga.

2 Khetha umjikelezo wesiqendu okanye umjikelezo wesiqendu, okanye ubhale i-engile ekhethiweyo kwaye ukhethe umbala weekona eziza kubonisa.

3 Sebenzisa ujikelezo; ii-pixels neflegi yolawulo zidityaniswe ukuze wonke umbukeli avume ukuba yeyiphi indlela ephezulu.

4 Layisha ezantsi ifayili ejikelezayo JPEG.

Jikelezisa JPEG Imibuzo ebuzwa rhoqo

Ndingajikelezisa iqela elipheleleyo kwindlela enye?

Ewe. Ujikelezo olufanayo lusetyenziswa kwifayile nganye olayishe kuyo, eyiyo inkqubo esebenzayo yokulungisa ifayile ye scans okanye ikhamera yemveliso esuka kwindlela engalunganga.

I Jikelezisa JPEG ijikelezisa njani ifayili?

Ngokucacileyo, ujikelezo oluninzi lweeqondo ezili-90 luyakwenziwa ngaphandle kolahleko ngokudlulisa iibhloko ze-DCT - akukho kuphinda kukhowudi, akukho kuphinda kulahleko; i-engile ekhethiweyo kuphela efuna ukusampuluswa, kuba i-pixel grid ngokwayo kufuneka iphinde. Iindawo ezijikelezayo zekota kunye neepesenti zojikelezo ziyimeko eqhelekileyo kwaye zithathe indlela ebiza kakhulu efumanekayo kwifomati.

Nantoni na ekhethekileyo kwi JPEG ekufuneka ndiyazi?

Ewe — i.jpeg ne.jpg izilungiso ziyi-bitstream efanayo, ngoko akukho nto apha esebenza ngokuhlukileyo kune-.jpg — kuphela igama lefayili litshintsha. Yinto echaza ukuba kutheni ifayile ibonakale ilungile kwisicelo esithile kwaye ingalunganga kwisinye.

Kutheni ifayile yam ibonakale ilungile kwifowuni yam kodwa ijikeleze ngaphaya kwezinye iindawo?

Kuba ubeko lugcinwa njenge-EXIF flag kunokuba lugcinwe kwii-pixels, kwaye akukho mntu wonke obonakeleyo uyamhlonipha. Ukujikeleza apha kuyenza ibonakale ilungile - ii-pixels ne-flag zigqiba ekubeni zivumelane, ngoko ke ifayile ibonakala ifana naphi na.

Yintoni endinokuyilayisha kwi Jikelezisa JPEG?

Nantoni na ekufumaneni usapho lwe-raster - JPG, JPEG, JFIF ne-WebP - kunye neefomati ezingalunganga (PNG, BMP, TIFF) ukuba ufuna ukuzidibanisa kwiqela elinye. Ifomati ifundwa kwisihloko sefayili, hayi kwisiphelo, ngoko ke umfanekiso ogciniweyo nge-suffix engafanelekanga uhlala udlula.

Ingaba kukho umda wobungakanani befayili kwi Jikelezisa JPEG?

Ewe: i-akhawunti ekhululekileyo iqhubekeka imifanekiso ukuya kwi-5 MB nganye, equka ngokucacileyo yonke ikhamera ye-JPG kunye nefowuni yomfanekiso; umsebenzi ukwenziwa yi-libjpeg-turbo ne-libwebp, iilayibrari ezifanayo umhleli we-desktop uqhagamshelana nazo. Iifayili ezinkulu zizinto ezi-1 ezimfutshane ezikhululekileyo eziza kukuthintela, kwaye umda yifayili nganye kunokuba yiqela ngalinye.

Ingaba i Jikelezisa JPEG iya kunyusa ubunjani be JPEG images yam?

Umthombo olahlwayo sele uyimpumelelo yendlela enye yokugqitha, kwaye nayiphi na imisebenzi efuna ukubuyisela ikhowudi idibanisa enye. Xa umsebenzi ungakwenziwa ngaphandle kokucofa i-pixel data siyenza endaweni, kwaye apho ayikwazi khona ukhetha umgangatho wezinto eziluncedo ngokwakho kunokuba ufumana okumiselweyo okumiselweyo.

Ndingaqhuba i Jikelezisa JPEG kwi JPEG images ezininzi ngaxeshanye?

Ewe. Nciphisa iqela lonke kwindawo yolayisho phezulu kwaye ziphole ngokuthe ngqo ngemimiselo efana nayo - le yisizathu esiphambili sokwenza oku kumkhangeli zincwadi kunokuba yifayile enye ngexesha kumhleli. Iiakhawunti ezikhululekileyo ziqhuba ifayile enye kwiqela; i pass iphakamisa loo nto.

Kutheni i EPUB inxuwa liququzelela Jikelezisa JPEG?

EPUB.to ibekwe phantsi kwefomati evulekileyo yencwadi ye-e-XHTML kwi zip, ephinda ijikeleze ngoyilo, kwaye ifundeka kwizixhobo zekhompyutha akukho mntu ucinga malunga nobeko. Incwadi yizip egcweleyo yemarkup, imifanekiso kunye nefonti, ngoko ke phantse yonke imisebenzi abantu bezisa kwiwebhusayithi ye-eBook isebenza kwelinye lawona zinto. Jikelezisa JPEG iqhuba kwi-upload efanayo ne-akhawunti efanayo njenge-conversions kuba apho ifuneka khona.

Ndiza kwenza ntoni ngeziphumo xa i Jikelezisa JPEG igqityiwe?

Umguquli kule ndawo uhambisa iincwadi phakathi kwe-EPUB, MOBI, AZW3, PDF ne DOCX, ngoko ke igama liphela kwisixhobo esibonakalayo esiza kufunda. Ukwenza oko emva Jikelezisa JPEG kuthetha ukuba uguqulelo luzakwenziwa ukusuka kuhlobo olungqine ngalo, hayi ukusuka kulowo wawusazilungisa.

Ingaba Jikelezisa JPEG apha isixhobo esifanayo esisebenza kumasayithi afana nalowo?

Iinjini zinikezelwa - isixhobo esifanayo, abasebenzi abafanayo, amaqondo afanayo. Oku EPUB site idibanisa kukubona kwi reflow: yeyiphi yemisebenzi le ncwadi ephindayo ixhasa ngokuqinisekileyo, kwaye yeyiphi kuphela eyenza ingqondo kwi media ethe nkqo- ubeko ngaphakathi kwayo. Iqala kwakhona kwi nto enye malunga nefomati le site ibizwa emva: incwadi yi zip ye XHTML ene manifest, ngoko umbhalo ubiza ngaphantsi kwento kwaye ugqibo ngalunye olubalulekileyo lumalunga nomfanekiso ofakwe ngaphakathi kunye nefonti ye subsets.

Ndifuna i-akhawunti, kwaye ngaba kukho into egcinwa?

Akukho akhawunti, kwaye akukho nto igcinwayo: ulayisho lususwa kubasebenzi emva kokuba umsebenzi ugqibile, akukho nto ifundwayo kwaye akukho nto iqulathe isiqulathi seefayili. Iiakhawunti ezikhululekileyo zikhona kwimbali kunye nobungakanani beqela, hayi kwi access.