Guqula SVG ukuba PNG

Khetha ubungakanani obukhulu obungabonisi kuyo, kuba le yinyathelo apho ifayile iqala ukuba i-resoluble-independent. A SVG igcinwa njengendlela ye-mathematics kwaye ibonisa ngokucacileyo nakweyiphi na ubungakanani; i PNG yi-pixel ethe nkqo yothungelwano, kwaye ukongeza emva koko ungasebenzisa kuphela uxinzelelo. Rhweba ngaphandle kwisibini sobungakanani bokubonisa olungenayo ukuba ibhekisa kwi-DPI ephezulu yekhusi. I-SVG ibonisa kakuhle nakweyiphi na ubungakanani, ihlala ihlela, ikhangela kwaye iguqula njengombhalo ocacileyo, kwaye ihlala ilingana ne-PNG. I-PNG yaphuhliswa ngowe-1996 njengento engekhoyo kwipateni ye-GIF, kwaye yayiyifomati yomfanekiso ongekhoyo kwi-web.

Kwi-SVG, umbhalo ngumbhalo okweli hlabathi - okhethwayo, okhangelayo nophinda-uhlobo, kwaye ufuna ifonti ukuba ikhona okanye ifakwe ukuze ibonise njengoko kumiselwe. Ukutshintsha ukusuka kwi-SVG kuguqula umbhalo ube yi-pixels okanye ube ngumbhalo woxwebhu ngokuxhomekeke kwinjongo; ukuguqula ukuya kwi-SVG kuguqula kuphela umbhalo ovela kweli hlabathi ukuba umbhali wayene-maleko yombhalo wokuqalisa.

Akukho data yepixel, hayi. Zonke iifomati zigcina umfanekiso ngaphandle koxinzelelo olulahlekileyo, ngoko ke umfanekiso ophumayo ufana nowo waya ngaphakathi kwaye uguqulelo luyaphinda uphinde luphinde. Okutshintshayo kubungakanani befayili, kwaye oku kusebenza ukuhamba - ubunzulu bombala, iiprofayili ezifakelweyo, amanqanaba noopopayi bonke baxhaswa ngokungalinganiyo phakathi kwefomati ezingalahlekileyo. I-SVG igcina iimpawu njengendlela ye-matematics nombhalo njengombhalo, hayi njenge-pixels, ngoko ke luxwebhu kunokuba luyi-raster grid. I-PNG isebenzisa uxinzelelo lwe-DEFLATE ngaphezulu kwamagqabantshintshi okuskena acociweyo, ngoko ke i-pixel nganye ihlala ngokuchanekileyo, kunye ne-8-bit epheleleyo ye-alpha channel.

Ukubonakala ngaphaya kuqhubeka xa usiya kwi-PNG, WebP, TIFF, GIF, okanye SVG. Ukutshintsha kwi-JPG kugubungela isiqhagamshelanisi se-alpha phantsi kwesiqalo esimhlophe - ukuba ufuna ukubonakala ngaphaya, cwangcisa ifomati eyaziyo ukubonakala ngaphaya endaweni ye-PNG.

Iiprofayili zombala we-ICC ezifakelweyo zifundwa kumvelaphi SVG kwaye zidityaniswe kwakhona kwi-PNG yemveliso apho ifomati ixhasa khona (JPG, PNG, TIFF, WebP). Iifomati ezingaxhaswanga zibuyela kwi-sRGB.

I-EXIF yekhamera (ISO, i-shutter, i-lens, i-GPS) igcinwa ngokumiselweyo ngexesha lokuguqulwa kwe-SVG → PNG xa zombini iifayili zixhasa i-metadata. Sebenzisa ukhetho lobumfihlo ukususa i-metadata phambi kokukhuphela ukuba ufuna ukuthumela imifanekiso ngaphandle kolwazi lwendawo.

Ewe — tsala iifayile ezininzi SVG kwindawo yokulayisha kwaye sizibeke kwifolokhwe ngokuthe tye. Abasebenzisi abakhululekileyo bafumana i-100MB ngefayili nganye; i-Premium ayinasiphelo sefayili nganye kwaye iqhuba abasebenzi abathe tye abaninzi, ngoko ke iqela lemifanekiso engama-200 ligqiba ngaphantsi kwemizuzu emibini.

Uguqulelo lwefomati olulula siqhuba i libpng / libjpeg- turbo / libwebp / ImageMagick imibhobho efanayo umhleli we desktop usebenzisa, ngexabiso elifanayo. Utshintsho luyizinto ze desktop zivula ifayile enye ngexesha; siyamkela iqela kwaye siqhuba ngokuthe tye.

Ukuziphatha okungagqibekanga kuku-1:1 — i-PNG yakho yemveliso inezinto ezilinganayo ze-pixels njenge-SVG. Sebenzisa /resize-image/ inyathelo elahlukileyo emva kokuguqula ukuba ufuna ukunyusa okanye ukunyusa i-scale njengenxalenye yokuhamba komsebenzi.

Kwi-JPG / WebP, umgangatho we-75-85 ufumana ifayili i-60-80% incinane kune-SVG yomthombo ngaphandle kotshintsho olubonakalayo kumgama wokujonga oqhelekileyo. Kwiinjongo ezingalahlekiyo (PNG, TIFF), lindele ukonga okuncinci — ngokuqhelekileyo 5-30% nge-deflate / LZW yokucinezela engcono.

Ewe — iifayile ezilayishwe phezulu SVG ziqhubekekiswa kubasebenzi abakhethekileyo kwaye zicinywe kwimizuzu. Asizukufunda, sigcine, okanye sisebenzise i-pixel data. Inkqubo yobumfihlo obupheleleyo kunye nefestile yokugcina ibhalwe kwi /privacy/.