Sinthani JPG ku PNG

Sinthani Yanu JPG ku PNG mafayilo mosavuta

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Kukweza

Momwe mungasinthire JPG ku PNG

Gawo 1: Kwezani yanu JPG mafayilo pogwiritsa ntchito batani lomwe lili pamwambapa kapena pokoka ndi kugwetsa.

Gawo 2: Dinani batani la 'Convert' kuti muyambe kusintha.

Gawo 3: Tsitsani pulogalamu yanu yosinthidwa PNG mafayilo

JPG ku PNG Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingasinthire bwanji JPG kupita ku PNG popanda kuwononga mtundu wa chithunzi?

Kutumiza fayilo yanu ya JPG ndipo wosinthira wathu amagwiritsa ntchito kuwongolera kwa mtundu wa PNG. Kwa osankhidwa osatha (PNG, TIFF, BMP) chilichonse cha pixel chimasunga bit-by-bit; kwa osankhidwa owonongeka (JPG, WebP) mutha kuwongolera mtundu wa mtundu (default 90) pambuyo potsitsa. JPG ndi lossy: chithunzi chimasinthidwa ndi DCT, quantised, ndi entropy-coded, ndi quality knob kuwongolera momwe ambiri ndi kuthyola. PNG amagwiritsa ntchito DEFLATE kusamvana pa scanlines zofiltered, choncho aliyense pixel amapulumuka moyenera, kuphatikizapo 8-bit alpha channel.

Kodi ndingapeze kuwala kwazithunzi pamene chithunzicho ndi PNG?

PNG mtundu umathandizira izi, koma kusinthaku sikungatheke. JPG siyimakhala ndi alfa channel, kotero kuti ma pixel onse kuphatikizapo kumbuyo kumafika mosawoneka bwino. Kuchita / removebackground / pambuyo pake kuti muchepetse chinthucho - ndiye kuti alpha channel PNG imapatsa china chake chosunga. PNG ndi kusankha koyenera kwa zithunzi, malogo, line art ndi chilichonse ndi zosalimba mapiko kapena kuwala - palibe kuyimba, palibe kuwala band.

Kodi kusinthidwa kwa JPG ku PNG kumabwezeretsa mtundu womwe udawonongeka?

Sichoncho. Ma artefacts ophatikizika omwe atulutsidwa mu JPG ndi ma pixels a pixels, ndipo PNG amawateteza bwinobwino kuposa kuwachotsa. Fayiloyo nthawi zambiri imakula, nthawi zina nthawi zambiri. Sichiyenera kuchitidwa pambuyo pake, chifukwa kusintha kwatsopano sichidzapanga chitukuko chachiwiri cha kuwonongeka. JPG alibe kuwala, degraded m'tsogolo nthawi iliyonse kuti ndi re-kupulumutsa, ndi kutulutsa zooneka kuletsa pa flat mtundu ndi zosaoneka malemba.

Kodi mtundu wanga wa CMYK udzakhalabe wosinthidwa ku PNG?

Imakhala yosinthidwa kukhala sRGB, chifukwa PNG siyimakhala ndi njira ya CMYK. Kuti mugwiritse ntchito pazenera, izi ndi zomwe mukufuna. Kuti musindikize pa intaneti, sichingakhale choncho — kusintha kwa gamut kumasintha momwe mabala osatumizidwira amawonekera pa chophimba, choncho tumiza chophimba cha JPG choyambirira, osati PNG. PNG ndi woipa chithunzi mtundu: chithunzi anapulumutsidwa monga PNG ndi routinely asanu mpaka makumi asanu nthawi yaing'ono kuposa chithunzi chimodzimodzi monga JPG kapena WebP.

Kodi PNG imasunga deta ya EXIF kuchokera ku JPG yanga?

Popanda malire, yeah, komweko JPG ndi JPEG standard kuchokera 1992, ndipo pambuyo zaka zitatu ndibe format ambiri kamera ndi ambiri mawebusaiti kugwiritsa ntchito kwa zithunzi.

Kodi kusinthidwa kwa JPG kupita ku PNG kumateteza kuwala?

Kuwala kwamkati kumapezeka pamene PNG ndi PNG, WebP, TIFF, GIF, kapena SVG. Kusintha kuti JPG kumadula nyanja ya alpha pambuyo wobiriwira — ngati mukufuna kuwala kwamkati, sankhani chida chowala chosawoneka bwino m'malo mwa PNG. PNG anapangidwa mu 1996 monga patent-free kuchotsa kwa GIF, ndi anayamba webusaiti default lossless chithunzi mtundu.

Kodi mtundu wanga wazithunzi (sRGB / Adobe RGB / CMYK) udzakhala ndi moyo mpaka JPG mpaka PNG?

Ma profiles a ICC amtundu wa embedded amawerengedwa kuchokera ku chiyambi JPG ndipo amaphatikizidwanso ku PNG pomwe mtundu umathandizira (JPG, PNG, TIFF, WebP). Ma formats osathandizira ma profile amabwerera ku sRGB ndi njira yoyeserera.

Kodi chimachitika ndi metadata ya EXIF pamene JPG ikusinthidwa kukhala PNG?

EXIF ya kamera (ISO, shutter, lens, GPS) imasungidwa mwanjira yosasinthika pa JPG -> PNG pamene mitundu iwiri imathandizira metadata. Musagwiritse ntchito kuchotsa metadata mukafuna kugawana zithunzi popanda kusonyeza malo opezeka kapena kusonyeza zolemba za chipangizocho.

Kodi ndingasinthire mamiliyoni a JPG mafayilo ku PNG pamodzi?

Inde - dinani mafayilo ambiri a JPG ku gawo lotsitsa ndipo amalowa m'gulu limodzi. Tiyi yaulere imalandira 100 MB pa fayilo; Premium ilibe fayilo ya fayilo ndipo imagwira ntchito zambiri, chifukwa chake 200-image batch imakhala yomaliza m'maola awiri.

Kodi JPG mpaka PNG imayerekezera ndi Photoshop / GIMP pantchito yomweyo?

Kuti tisinthe mtundu woyenera, timagwiritsa ntchito ma libpng / libjpeg-turbo / libwebp / ImageMagick omwe amagwiritsa ntchito woyang'anira desiki, ndi mtundu umodzi. Kusiyana ndi kuti zida za desiki zimatsegula fayilo imodzi panthawi imodzi; timavomereza ma batani ndi kuwayendetsa mogwirizana pa ogwira ntchito pa seva.

Kodi fayilo ya PNG ili ndi kukula ndi kukula kwa chiyani?

Mtundu woyambirira ndi 1:1 — PNG wanu wa kutuluka ali ndi pixels yofanana ndi yochokera ku JPG. Ngati mukufuna kusintha kukula ngati gawo la kusintha, kugwiritsa ntchito /resize-image/ pambuyo pake, kapena kugwirizana ntchito ndi /image-pipeline/ ntchito.

Kodi fayilo ya PNG ikhoza kukhala yochepa bwanji popanda zowoneka bwino?

Kwa JPG / WebP, mtundu wa 75-85 umabweretsa PNG 60-80% wamtali kuposa JPG popanda kuwonekera panthawi yowonera. Kwa PNG yopanda malire (PNG, TIFF), mutha kuyembekezera kupulumutsa pang'ono - nthawi zambiri 5-30% pogwiritsa ntchito kutsitsa / LZW koyenera kuposa momwe chiyambi chili.

JPG

JPG mafayilo agwiritsa ntchito lossy kusamvana oyenera kwa zithunzi, kusonyeza ochepa kukula kwa fayilo pamene kuteteza chikhalidwe cha kuona.

PNG

PNG mafayilo amagwiritsa ntchito kuwala kwazithunzi ndi kuchepetsa kuwala kwazithunzi, zomwe zimawapangitsa kukhala abwino kwa zithunzi, malogo, ndi zithunzi zazithunzi.