Sinthani PNG ku JPG

Sinthani Yanu PNG ku JPG mafayilo mosavuta

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Kukweza

Momwe mungasinthire PNG ku JPG

Gawo 1: Kwezani yanu PNG 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 JPG mafayilo

PNG ku JPG Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

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

Upload PNG wapamwamba ndi wosinthira amagwiritsa ntchito mtundu-akudziwa quality optimization kwa JPG. Kwa lossless JPG (PNG, TIFF, BMP) aliyense pixel ndi yotetezeka; kwa lossy JPG (JPG, WebP) mukhoza tune quality factor pamaso download. PNG amagwiritsa ntchito DEFLATE kusamvana pa scanlines zofiltered, choncho aliyense pixel amapulumuka moyenera, kuphatikizapo 8-bit alpha channel. JPG ndi lossy: chithunzi chimasinthidwa ndi DCT, quantised, ndi entropy-coded, ndi quality knob kuwongolera momwe ambiri ndi kuthyola.

Kodi ndibwino bwanji kuti ndichepetse kuchoka ku PNG kupita ku JPG?

Pabwino 80-85, kusiyana kumakhala kosawoneka pamalo owoneka bwino ndipo fayilo imatha kugwa ndi 60-80%. Kuthamanga ndichakuti ndi njira imodzi: kubwezeretsa JPG kumaphatikizapo zosapanga dzimbiri nthawi iliyonse. Gwiritsani ntchito PNG ngati master ndi kubwezeretsa JPG kuchokera pamenepo nthawi iliyonse yomwe mukufuna kukula kwatsopano. PNG ndi kusankha koyenera kwa zithunzi, malogo, line art ndi chilichonse ndi zosalimba mapiko kapena kuwala - palibe kuyimba, palibe kuwala band.

Kodi kusinthidwa kwa PNG kupita ku JPG kumateteza kuwala?

Kuwala kwamkati kumapezeka pamene JPG ndi PNG, WebP, TIFF, GIF, kapena SVG. Kusintha kuti JPG kumadula nyanja ya alpha pazenera lofiira. Ngati mukufuna kuwala kwamkati m'chithunzicho, dinani pa JPG yokhala ndi kuwala kwamkati m'malo mwa JPG=JPG. JPG ndi JPEG standard kuchokera 1992, ndipo pambuyo zaka zitatu ndibe format ambiri kamera ndi ambiri mawebusaiti kugwiritsa ntchito kwa zithunzi.

Kodi ndi chiyani za metadata EXIF pamene PNG ikusinthidwa kukhala JPG?

Mu ambiri kusintha, kamera EXIF nyanja monga kamera mtundu ndi GPS malo si anachita mu JPG. Palibe kukhazikitsa patsambali kuti atenge kapena kuchotsa metadata, choncho onetsetsani zotsatira ndi metadata woonera ngati ndi zofunika.

Kodi ndingasinthire mafayilo ambiri a PNG ku JPG pamodzi?

Mavidiyo ambiri m'modzi ntchito ayenera kulipira ndondomeko. Free kugwiritsa ntchito ndi imodzi wapamwamba pa kusintha, imodzi kusintha pa ola. Pa ndondomeko yolipira mukhoza kuwonjezera angapo owona kuti ntchito imodzi, ndiye download zotsatira zonse pamodzi kapena onse awo mu ZIP imodzi.

Kodi fayilo yanga ya JPG idzakhala ndi kukula kotani?

Choyambirira ndi 1:1 — JPG yanu imasunga kukula kwa pixels ya chiyambi PNG. Ngati mukufuna kusintha kukula kwa chithunzi ngati gawo la kusintha, kugwiritsa ntchito /resize-image/ pambuyo posintha, kapena kugwirizana ndi /image-resize/ ntchito.

Kodi PNG fayilo yanga ndi yapadera nthawi yosintha?

Yes. Uploaded PNG owona amachitidwa pa zipangizo zathu zosiyanasiyana, palibe munthu kuganizira iwo, ndipo iwo si nthawi zonse anagawana. Upload ndi zosinthidwa JPG onse anataya mwamsanga za 24 maola pambuyo kusintha, zomwe zimasiya nthawi kuti download zotsatira.

N'chifukwa chiyani JPG yanga yosinthidwa ndi yayikulu kapena yaying'ono kuposa momwe ndimayembekezera?

A PNG ndi kulumikizana kwakukulu (JPG yowonongeka) nthawi zambiri imakula pamene ikusinthanso ku JPG yopanda kusowa (PNG, TIFF). PNG yopanda kusowa nthawi zambiri imakhudzidwa kwambiri pamene ikuyenda ku JPG / WebP. Mtengo umadalira zomwe zili pazithunzi - zithunzi zimasinthidwa mosiyana ndi liwiro lazojambula. 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. JPG alibe kuwala, degraded m'tsogolo nthawi iliyonse kuti ndi re-kupulumutsa, ndi kutulutsa zooneka kuletsa pa flat mtundu ndi zosaoneka malemba.