Amachita. JPEG ndi codec yofanana ndi JPG pansi pa chida chowonjezera - DCT yofanana, tambala yofanana yowerengera, palibe chomwe chimasintha ndi dzina la fayilo. Ichi ndicho chomwe chimatsimikizira ngati chigawo chachiwiri chimayenda mwaulere kapena chimawononga kubwezeretsa koyamba.
Pali china chilichonse chokhudzana ndi JPEG chomwe ndingadziwe?
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Ndikofunika - the.jpeg ndi.jpg zowonjezera ndi chimodzimodzi bitstream, choncho palibe apa amachita mosiyana ndi.jpg — zosintha zokha za dzina la fayilo. Ndi chinthu chomwe chimafotokoza chifukwa chake fayilo ikuwoneka bwino m'modzi mwa mapulogalamu ndi kuipa m'modzi.
Chifukwa chakuti kuwala kwa chithunzichi kumasungidwa ngati EXIF flag, osati mu pixels, ndipo sikuti aliyense woyang'anira amaona bwinobwino. Kusinthasintha kwa chithunzichi kumasintha zinthu ziwirizi kuti zikhale zofanana — pixels ndi flag zimamaliza kugwirizana, ndipo fayilo imawoneka yofanana kulikonse.
Kodi ndingasinthire magulu onse m'modzimmodzi?
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Ndikofunika. Ndikugwirizana ndi kuzungulira kwa thumbnail. Ndikugwirizana ndi kuzungulira kwa thumbnail. Ndikugwirizana ndi kuzungulira kwa thumbnail. Ndikugwirizana ndi kuzungulira kwa thumbnail. Ndikugwirizana ndi kuzungulira kwa thumbnail.
Kodi chimachitika ndi EXIF ndi mtundu wa profile deta?
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EXIF ya kamera (ISO, shutter, lens, GPS) ndi ICC profile yophatikizidwa imapita ku default, chifukwa kuchotsa profile ndi komwe kumachititsa kuti mabala azisintha pa kulowanso.
Kodi Kusinthanitsa JPEG imawononga chilichonse?
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No. Kusinthanitsa JPEG ndi ufulu popanda akaunti, palibe watermark pazotulutsa ndi palibe khoma lolembetsa m'mbuyo mwa kutsitsa. Kutsitsa kumatha kuchotsanso nthawi yochepa pambuyo pomaliza ntchito.
Kodi pali malire a kukula kwa fayilo pa Kusinthanitsa JPEG?
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Yai: maakaunti aulere amapanga zithunzi mpaka ku 5 MB, zomwe zimakhudza kwambiri kamera iliyonse JPG ndi foni; ntchitoyi imachitika ndi libjpeg-turbo ndi libwebp, mabuku omwewo omwe wolemba deta amagwirizana nawo. Mafayilo akuluakulu ndi chinthu chimodzi chomwe chimalepheretsa chida chosalipira, ndipo chida chokha chili ndi fayilo imodzi kuposa fayilo imodzi.
Nchifukwa chiyani malo a PNG amalandira Kusinthanitsa JPEG?
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PNG.to imapangidwa m'njira yomwe mumagwiritsa ntchito pamene simungathe kuwononga pixel: osatha, alpha-oyenera, ndi yankho loyenera kwa zithunzi zazithunzi, ma logo, line art ndi chilichonse chomwe chili ndi maziko olimba. Ntchito ya chithunzi siyimangokhala ndi gawo limodzi: anthu amafika kuti asinthire mtundu ndi kuchoka kufunikira chithunzi cha mtundu wina, kulemera kosiyana kapena mtundu wina. Kuyendetsa Kusinthanitsa JPEG pamodzi ndi kutsitsa, ma caps amtundu umodzi ndi akaunti imodzi ndichifukwa chake ndi apa ndipo si pa tabu yachiwiri.
Kodi ndingachite chiyani ndi zotsatirazi pamene Kusinthanitsa JPEG yatha?
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Wosintha patsamba lino amasintha zithunzi ku PNG, JPG, WebP, GIF ndi SVG - zomwe ndi njira yomwe lamulo la kuwala kwa chilengedwe limapangidwa. Izi ndi njira yomwe anthu ambiri adapita, ndipo amachita izi pambuyo pa Kusinthanitsa JPEG kuposa kale, kumatanthauza kuti kusintha kwa ntchito kumachokera ku fayilo yomwe mwamaliza kukhazikitsa.
Kodi Kusinthanitsa JPEG pano ndi chinthu chomwecho chomwe masamba a sibling amayendetsa?
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Magalimoto amagawana - mabuku omwewo, ogwira ntchito omwewo, ma limits omwewo. Zosiyana ndi malangizo, ndipo malangizowa amayamba kuchokera ku chinthu chimodzi chokhudza mtundu womwe umagwiritsidwa ntchito patsamba lino: palibe slider yabwino yosayenera - PNG imayenda m'mphepete mwa maulendo a bit-exactly, choncho chinthu chokhacho chomwe chimasintha mtengo wanu ndi kukula kwa fayilo. A PNG sitepe amaganiza za komwe PNG ndi malo abwino komanso komwe si, ndipo lamuloli limatanthauza zambiri kuposa batani.
Kodi ndiyenera kukhala ndi akaunti, ndipo kodi zinthu zina zimasunga?
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Sichingakhale akaunti, ndipo palibe chomwe chimasunga: zotsitsa zimachotsa ntchito za ogwira ntchito pambuyo pomaliza ntchito, ndipo palibe chomwe mumapanga chimasinthidwa, kupezeka kapena kugwiritsidwa ntchito kwa chilichonse. Maakaunti aulere alipo kwa mbiri ndi kukula kwa batani, osati kulowa.
