Jikelezisa JPEG

Buyisela umva JPEG images ngokuthe tyaba okanye ngokuthe nkqo

Chaza iifayile zakho

*Iifayile zicinyiwe emva kweeyure ezingama-24

Guqula iifayile ezifikelela kwi-1 GB simahla, abasebenzisi bePro banokuguqula iifayile ezifikelela kwi-100 GB; Bhalisa ngoku

Iyalayisha

Indlela yokujika JPEG

1 Layisha phezulu i JPEG images ofuna ukuyibona.

2 Khetha umgca ongagqibekanga - othe tyaba unika umfanekiso we-mirror, othe nkqo ubonisa umbono ojikelezayo phantsi.

3 Sebenzisa ujikelezo, emva koko khangela naliphi na inqaku, ilogo okanye inani kwimboniselo yangaphambili, kuba ezi zibonisa ngaphaya kunye nezinye zonke izinto.

4 Layisha ezantsi ifayili ejikelezayo JPEG.

Jikelezisa JPEG Imibuzo ebuzwa rhoqo

Ingaba ifomati yombhalo ibalulekile xa ijikelezisa?

Iyenza. I-JPEG yi-codec efanayo ne-JPG phantsi koluhlu olude — i-DCT efana ne-pipeline, i-quantization table efana ne-quantization table, akukho nto malunga nee-pixels ezitshintsha ngegama lefayili. Oku kugqiba ukuba ngaba i-mirror ingakwenziwa ngokubhalela kwakhona ifayile okanye ifuna ukuyikhupha kwikhowudi kuqala.

Nantoni na ekhethekileyo kwi JPEG ekufuneka ikwazi?

Ewe — i.jpeg ne.jpg izilungiso ziyi-bitstream efanayo, ngoko akukho nto apha esebenza ngokuhlukileyo kune-.jpg — kuphela igama lefayili litshintsha. Kufuneka ulinde ixesha ngaphambi kokuba ujikelezise into engayi kuyenza kwakhona ngokulula.

Ndiza kuzama nini ukujika imifanekiso?

Ukulungisa uvavanyo okanye ukuthatha i-webcam eyaphuma ifana, yenza isibini esilinganayo sezinto eziphilayo, okanye uthelekiso lokuhamba kwento ejonge ubeko. Ukuba imixholo iqulethe umbhalo, ilogos okanye amanani, khangela isiphumo - ezifana nazo.

Ndingayijika iifayili ezininzi ngaxeshanye?

Ewe. I-axis efanayo isetyenziswe kwifayile nganye kwiqela, eyenza ukuba ulungise isiqulathi seefayili esipheleleyo semifanekiso ejikelezayo ethathwe kwindlela enye endaweni yenye ngexesha.

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; ugqithiso luyikhupha loo nto.

Ithini into ebangela ukuba i-EXIF ne-data yeprofayili yombala isebenze?

Ikhamera EXIF (ISO, i-shutter, i-lens, i-GPS) kunye ne-ICC efakwe kwiprofayili idluliselwa ngokumiselweyo, kuba ukulahla iprofayili kwenza umbala utshintshe xa uphinda urhweba ngaphakathi. Sebenzisa ukhetho lokhuseleko lokususa i-metadata phambi kokukhuphela ukuba ujongene nokupapasha ifayili.

Ingaba i Jikelezisa JPEG ibiza nantoni na?

Umhlathi Jikelezisa JPEG ukhululekile ngaphandle kwe-akhawunti, akukho phawu lwamanzi kwimveliso kwaye akukho mnatha wobhaliso phambi kokukhuphela. Ukukhuphela kususwa ngokuzenzekelayo ngexesha elifutshane emva kokuba umsebenzi ugqibile.

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.

Kutheni i PNG inxuwa liququzelela Jikelezisa JPEG?

PNG.to ibekwe phantsi kohlobo olusebenzisayo xa awukwazi ukulahlekelwa yi-pixel: akukho lahlekelwa, i-alpha-ekwaziyo, neimpendulo elungileyo yescreenshots, ilogos, umzobo womgca nantoni na enemiphetho eqinileyo. Umsebenzi womfanekiso awusoloko uthatha inyathelo elinye: abantu bafika ukutshintsha ifomati kwaye bashiye befuna umfanekiso ohlukileyo kubungakanani, ubunzima obuhlukileyo okanye isimbo esihlukileyo. Ukusebenza Jikelezisa JPEG kwindlela yokukhuphela enye, ubungakanani obufanayo becaps kunye neakhawunti enye yisizathu esipheleleyo esikhona apha kunokuba kwi tab yesine.

Ndiza kwenza ntoni ngeziphumo xa i Jikelezisa JPEG igqityiwe?

Umguquli kule ndawo ushenxisa imifanekiso ukuya nakwi-PNG, JPG, WebP, GIF ne-SVG — eyona nto iphambili apho ukhetho malunga nokubonakala ngathi luya kwenziwa. Lo ngumhlathi abantu abaninzi bafika ngawo, kwaye ukuyenza emva Jikelezisa JPEG kunokuba phambi ithetha ukuba uguqulelo lusebenza kwifayile ogqibile ukumisela kuyo.

Ingaba Jikelezisa JPEG apha isixhobo esifanayo esisebenza kumasayithi afana nalowo?

Iinjini zinikezelwa - iilayibrari ezifanayo, abasebenzi abafanayo, amaqondo afanayo. Okuhlukayo kukucebiso, kwaye ucebiso apha luqala kwinyani enye malunga nefomati le ndawo ibizwa emva: akukho mqhoboshi womgangatho onokuthi uphume embi — i-PNG ijikeleza-ihamba ngokuchanekileyo, ngoko into ekuphela kwayo eyenza utshintsho ibiza ubungakanani befayili. I PNG indawo ithetha malunga apho PNG yindawo efanelekileyo yokugqitha kwaye apho ayiyiyo, kwaye loo hlolo lixabiso ngaphezulu kweqhosha.

Ndifuna i-akhawunti, kwaye ngaba kukho into egcinwa?

Akukho akhawunti, kwaye akukho nto igcinwa: ulayisho lususwa kubasebenzi emva komsebenzi ugqiba, kwaye akukho nto uyenzayo ikhowudi, idweliswe okanye isetyenziswa nakweyiphi na enye into. Iiakhawunti ezikhululekileyo zikhona kwimbali kunye nobungakanani beqela, hayi kwingeniso.