JPEG, TIFF, PSD, BMP, PICT, PNG, kunye ne-GIF ichazwe
Ngaba udidekile malunga naluphi uhlobo lwefriji yokusebenzisa xa, okanye uyazibuza ukuba yintoni umehluko okhoyo phakathi kwe-JPEG , i-TIFF, i-PSD, i-BMP, i-PICT kunye ne-PNG?
Nazi izikhokelo eziqhelekileyo:
- Ukuba imifanekiso ifakwe kwiWebhu okanye ifowuni, sebenzisa i- JPEG , i-PNG, okanye i-GIF.
- Ukuba imifanekiso iya kubonakala kwizinto eziprintiweyo, sebenzisa i-TIFF.
- Ukuba ufuna ukugcina inguqu ehlala ehleliweyo, khetha ifomathi yakho yefayile yefayile . ezifana .PSD ye-Photoshop,
Nazi iinkcazo ezimfutshane zeefomati zefayile zeefayile eziqhelekileyo, kunye neziqulatho zokulandela ulwazi olungakumbi:
Ixesha lokusebenzisa i-JPEG
Iqela lezakhono ezidibeneyo zezithombe (JPEG okanye iJPG) lifanelekileyo kwiifoto xa ufuna ukugcina ubungakanani befayili encinci kwaye ungacingi ukuyeka umgangatho othile ngokunciphisa ubuninzi besayizi. Ifayili iyancinci? I-JPEG ibhekwa ngokuba "yilahleko". Ngendlela elula, xa ifayile ye-JPEG idalwe i-compressor ibheka umfanekiso, ibonisa indawo zemibala eqhelekileyo kwaye isebenzise esikhundleni sayo. I-upshot imibala engayithathwa njengowesiqhelo "ilahlekile," ngoko inani leminqaku yolwazi emfanekisweni linciphisa okunciphisa ubukhulu befayili.
Xa ifayile yeJPG idalwe udlalwa ukuba ubeke ixabiso lekhwalithi efana ne-Photoshop yezithombe ezikhethileyo ezithatha u-0 ukuya ku-12. Nayiphi into engaphantsi kwe-5 iya kubangela ukuba ibe nomfanekiso wepiliseli ngenxa yokuba ixabiso elikhulu liphonswa ukucutha ubukhulu befayile. Nantoni na phakathi kwe-8 no-12 ithathwa njengomsebenzi ogqwesileyo.
I-JPEG ayifanelekanga imifanekiso eneetekisi, iibhloko ezinkulu zombala, okanye iimoko ezilula kuba imigca ye-crisp iya kuphazamiseka kwaye imibala ingatshintsha. I-JPEG kuphela inika ukhetho lwe-Baseline, i-Baseline Optimized, okanye i-Progressive.
- Isiseko (Standard) - Le fom yeJPEG ibonwa yizo zonke izikhangeli zewebhu.
- Isiseko esilungisiwe - Olu khetho lwefayile yeJPEG lunikeza umbala ogqithisiweyo kunye nokuncincika okungcono. Ixhaswa yizo zonke izikhangeli zanamhlanje kodwa azixhaswanga yiziphequluli zokuqala zewebhu. Yilona khetho olukhethekileyo kwiifayile zeJPEG namhlanje.
- Inkqubela phambili - Idala ifayile yeJPEG ebonisa kancane ngokukhupha, ukuqala ngokubaluleka, kwaye ngokucacileyo iyacaca njengoko ilandelwa. Ayenzi umfanekiso wokukhuphela nayiphi na ngokukhawuleza, kodwa inokubangela ukukhwabanisa kwejubane ukususela kwimizobo ye-blocky ilayishwe ngokukhawuleza kwixhumo olude. Uninzi lwabasebenzisi be-intanethi kwi-speed-connections namhlanje, i-Progressive JPEG ayifaneki isetyenziswe.
Ixesha lokusebenzisa i-TIFF
I-TIFF (Ifayile yefayile yefayile yefayile) ilungele nawuphi na uhlobo lwe- bitmap (i-pixel-based based images) efunekayo yokuprinta ngoba le fomethi isebenzisa umbala we-CMYK. I-TIFF ivelisa iifayile ezinkulu ngokubulela kwisisombululo esifanayo sama-300 ppi ngaphandle kokulahleka kwexabiso. I-TIFF nayo igcina izakhiwo, i-alpha transparency, kunye nezinye izinto ezikhethekileyo xa zigcinwe kwi-Photoshop. Uhlobo lweenkcukacha ezongezelelweyo ezigcinwe ngeifayile ze-TIFF ziyahlukahluka kwiinguqu ezahlukeneyo ze-Photoshop, ngoko nceda uqhagamshelane no-Photoshop uncedo ngolwazi olungakumbi.
Ixesha lokusebenzisa i-PSD
I-PSD ifomathi yaseBhookshop. Sebenzisa i-PSD xa ufuna ukulondoloza izalathisi, ukucaca, ukulungiswa kwemigca, iimpawu, ukucima imigca, izitayela zokubeka, iindlela zokuxuba, i-vector umbhalo, kunye nemilo, njl. Gcinani engqondweni, la maxwebhu angavulwa kuphela kwi-Photoshop nakuba abanye abahleli bezithombe uya kuvula.
Ixesha lokusebenzisa i-BMP
Sebenzisa i-BMP naluphi na uhlobo lwe-bitmap (i-pixel-based based images). Ii-BMP ziifayili ezinkulu, kodwa akukho ukulahleka kumgangatho. I-BMP ayinayo inzuzo yangempela kwiTIFF, ngaphandle kokuba ungayisebenzisa kwiWindows wallpaper. Enyanisweni, i-BMP ingomnye walezo zifomathi zemifanekiso ezishiywe ukusuka kwiintsuku zokuqala zekhompyutheni kwaye ayiqhelekanga, ukuba isetyenziswa, namhlanje. Oku kuchaza ukuba ngamanye amaxesha kuthiwa "ifomathi yelifa".
Ixesha lokusebenzisa i-PICT
I-PICT yinkomfa endala, i-Mac kuphela ye-bitmap ifomathi esetyenziselwa ukunikezela kwe-Quickdraw, efana ne-BMP ye-Windows, i-PICT ayisoloko isetyenziswa namhlanje.
Ixesha lokusebenzisa i-PNG
Sebenzisa i-PNG xa udinga ubuncinane befayili yefayili ngaphandle kokulahlekelwa ngumgangatho. Iifayile ze-PNG zincinci kunezithombe zeTIFF. I-PNG iphinde isekele ukukhanya kwe-alpha (iincinci ezithambileyo) kwaye yaphuhliswa ibe yi-Web efayile yokutshintsha i-GIF. Qaphela ukuba ukuba ufuna ukugcina ubala ngokugcwele, uya kufuneka ugcine ifayile yakho yePNG njengo-PNG-24 kwaye ingekho iPNG-8. I-PNG-8 iluncedo ekunciphiseni ubungakanani befayile yeefayili ze-PNG xa ungafuneki ukukhanya, kodwa unemiqathango yeefayile ze- palette njengeefayile ze-GIF .
Ifom yePNG nayo isetyenziswa ngokuqhelekileyo xa udala imifanekiso ye-iPhones ne-iPads. Mane uqaphele iifoto azenzi zonke iifom zepng. Isizathu si-png sisakhiwo esingenakulahlekelwa, esithetha ukuba kuncinci kakhulu ukuba kukho nayiphi na ingcinezelo esetyenziswe kumfanekiso we-png obangela iifayile ezikhulu kakhulu kunamaqabane abo .jpg.
Ixesha lokusebenzisa i-GIF
Sebenzisa i-GIF kwiifayile zeWebhu ezilula ezinemibala engama-256. Iifayile ze-GIF zihlala zinciphisa ukuya kwii-256 imibala eyahlukileyo okanye ngaphantsi kwaye zenza encinane kakhulu, imifanekiso yokulayisha ngokukhawuleza kwiWebhu . I-GIF inkulu kumaqhosha ewebhu, iitshathi okanye imifanekiso, umfanekiso wesimboli, ibhanki kunye nezihloko zombhalo. I-GIF isetyenziswe kwakhona kwiimifanekiso ezincinci ze-Web. I-GIF ayifanele isetyenziswe kwiifoto nakuba kukho ukuhlaziywa kwezithombe ze-GIF kunye ne-GIF Izithombe ngokubonga ngokunyuka kwamajelo omnxeba kunye noluntu.