Sinthani BMP ku PNG

Sinthani Yanu BMP ku PNG zolemba molimbika

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*Mafayilo achotsedwa patatha maola 24

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Kukweza

Momwe mungasinthire BMP ku PNG

Gawo 1: Kwezani yanu BMP 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

BMP ku PNG Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

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

Amathandiza kudziwa zomwe zimapangitsa kuti zikhale zoyenera: BMP ndi mwamsanga raw uncompressed RGB mnda ndi header ochepa, kotero ndi bwino lossless ndi zochuluka - nthawi zambiri 10-20x kukula kwa chithunzi chimodzimodzi monga PNG, pomwe PNG ndi lossless DEFLATE ndi 8-bit alpha channel ndi 16-bit kuwala, kotero kuti si nthawi zonse amawononga pa re-kupulumutsa koma amapeza lalikulu pa zithunzi za zinthu. Lowani fayilo yanu ya BMP ndipo wosintha wathu amagwiritsa ntchito kuwongolera kwa mtundu wodziwa mtundu wa PNG - kwa opanga opanda malire (PNG, TIFF, BMP, PSD) onse a pixel amasunga; kwa opanga opanda malire (JPG, WebP, GIF) mutha kuwongolera mtundu wabwino pambuyo potsitsa.

Kodi kusinthidwa kwa BMP kupita ku PNG kumateteza kuwala?

Kuwala kumatha kupezeka popita ku PNG, WebP, TIFF, GIF, ICO, PSD kapena SVG. Kusintha kwa JPG / JPEG / JFIF kumadula chingwe cha alpha pazenera lofiira - ngati mukufuna kuwala, gwiritsani ntchito mtundu wowala womwe umadziwa kuwala kuposa PNG.

Kodi mtundu wanga wamtundu (sRGB / Adobe RGB / CMYK) udzakhala ndi BMP mpaka PNG?

Ma profiles a ICC a ICC amawerengedwa kuchokera ku chiyambi BMP ndipo amaphatikizidwanso ku PNG pomwe mtundu umathandizira (JPG, PNG, TIFF, WebP, PSD). Ma formats osathandizira ma profile (GIF, BMP, ICO, SVG) amabwerera ku sRGB.

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

EXIF ya kamera (ISO, shutter, lens, GPS) imasungidwa mwanjira yosasinthika panthawi ya BMP → PNG yosinthira pamene mitundu iwiri imathandizira metadata (JPG, TIFF, WebP, PSD). Pezani njira yopezera kulumikizana kuti muchepetse metadata pambuyo potsitsa ngati mukufuna kugawana zithunzi popanda kulumikizana ndi geolocation.

Kodi ndingasinthire mamiliyoni a BMP mafayilo ku PNG pamodzi?

Inde - timangoyika mafayilo ambiri a BMP ku gawo lotsitsa ndipo timawaika m'gulu limodzi. Ogwiritsa ntchito aulere amalandira 100MB pa fayilo; Premium siyimakhala ndi fayilo ya fayilo ndipo imagwira ntchito zambiri, chifukwa chake 200-image batch imakhala yomaliza m'maola awiri.

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

Kuti tisinthe mtundu woyenera, timagwiritsa ntchito njira yofanana ya libpng / libjpeg-turbo / libwebp / ImageMagick yomwe wolemba desiki amagwiritsa ntchito, ndi mtundu wofanana wa zotsatira. Kusiyana ndi kuti zida za desiki zimatsegula fayilo imodzi panthawi imodzi; jpg.to imavomereza masamba ambiri ndikuwayendetsa mogwirizana.

Kodi ndi mtundu uti wa fayilo yanga ya PNG ndi kukula kwake?

Mtundu woyambirira ndi 1:1 — PNG imatulutsa zithunzi ndi pixels zofanana ndi BMP. ICO imatulutsa zithunzi ndi kusiyana (imapereka stack ya multi-resolution: 16/32/48/64/128/256). Ngati mukufuna kusintha kukula kwa chithunzi ngati gawo la kusintha, kugwiritsa ntchito /resize/ pambuyo pa kusintha.

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

Kwa JPG / JPEG / WebP, mtundu wa 75-85 umapeza fayilo ya 60-80% yaying'ono kuposa chiyambi BMP popanda kuwonekera kwa kuwala kwa kutalika kwa kutalika. Pofuna kukwaniritsa zolinga zosatha (PNG, TIFF, BMP), muyenera kuyembekezera kupulumutsa kwakukulu - nthawi zambiri 5-30% pogwiritsa ntchito kutsitsa bwino / LZW.

Kodi BMP fayilo yanga ndi yapadera nthawi yosintha?

Ndikoyenera — fayilo ya BMP yotulutsidwa imathetsedwa m'maola ochepa. Tisamawerenge, sitisunga kapena sitigawana deta ya pixel. Chidziwitso chokwanira cha lamulo la chitetezo cha chitetezo ndi zenera la chitetezo chimapezeka pa /privacy/.

Kodi wosintha BMP kupita ku PNG amagwira ntchito kwa zithunzi zochuluka kwambiri (50MP +)?

Yaiwala, gwiritsani ntchito 100MB yaulere. Premium imatha kusamalira ma inputs akuluakulu (300MB+) ndi ma pixels osiyanasiyana (16-bit PNG, 32-bit float TIFF, multi-layer PSD). Pipeline imayenda m'mizere ya pixels, kotero kugwiritsa ntchito kumbukirani kumasinthidwa ndi kuchuluka kwa mzere, osati kuchuluka kwa pixels.

N'chifukwa chiyani fayilo yanga yosinthidwa PNG ndi yayikulu / yaying'ono kuposa momwe ndimayembekezera?

Kukula kumasankhidwa ndi mapangidwe awiri ophatikizika, osati ndi wosinthira. Kukumbukira kuti BMP ndi mwamsanga raw uncompressed RGB mnda ndi header ochepa, kotero ndi bwino lossless ndi zochuluka - nthawi zambiri 10-20x kukula kwa chithunzi chimodzimodzi monga PNG, pomwe PNG ndi lossless DEFLATE ndi 8-bit alpha channel ndi 16-bit kuwala, kotero kuti si nthawi zonse amawononga pa re-kupulumutsa koma amapeza lalikulu pa zithunzi za zinthu - choncho BMP yosasinthika kwambiri nthawi zambiri imakula pamene imasinthidwa kukhala PNG yopanda kusowa, ndipo BMP yosasinthika yosasinthika nthawi zambiri imachepetsedwa kwambiri. Zolemba zazithunzi zimakhudzanso: zithunzi ndi zithunzi zosasinthika zimasinthidwa mosiyana.

Kodi ndingagwiritse ntchito fayilo ya PNG yosinthidwa pamalonda?

Ndikofunika. Kusintha kwa mtundu ndi kusintha kwa mtundu - ufulu wa ma copyright pazomwe zili pa chithunzicho umamvera inu (kapena amene ali ndi chidziwitso cha BMP). Timawonjezera palibe watermark, palibe metadata stamp, ndipo sitikufuna chilolezo pazomwe zimatuluka.

BMP

Mafayilo a BMP amasunga zithunzi mu mtundu wa bitmap wosasindikizidwa, zomwe zimapangitsa kuti mafayilo akhale akuluakulu koma abwino kwambiri.

PNG

Mafayilo a PNG amathandizira kuwonekera bwino ndipo amagwiritsa ntchito kukanikiza kosataya, zomwe zimapangitsa kuti akhale abwino kwambiri pazithunzi, ma logo, ndi zithunzi.