Sinthani PNG ku SVG

Kusaka kumasintha malo a pixel kukhala maulendo, omwe amagwira ntchito bwino kwa malogo, mapangidwe a m'mizere ndi zithunzi zamtundu wa flat-colour ndi mipaka yosaoneka bwino. Fotogalamu siyimakhala ndi mipaka imeneyi, chifukwa chake kusaka kumabweretsa kapena kulinganiza kovuta kapena SVG ndi maulendo ambirimbiri omwe ndi akulu kwambiri komanso othamanga kwambiri kujambula kuposa oyamba. SVG sangakhale chithunzithunzi cha zithunzi - kujambula zithunzi kumabweretsa kuyerekezera kopanda nzeru kapena fayilo yochulukirapo kuposa raster yoyamba.

Mu SVG, malemba ndi malemba anzeru — kusankhidwa, kufufuzidwa ndi re-styleable, ndipo amafuna font kuti azikhalapo kapena embedded kuti aonedwe monga analonjeza. Kusintha kuchokera SVG amasintha kuti malemba mu pixels kapena mu malemba a dokumento kutengera cholinga; kusintha ku SVG amapereka okha malemba anzeru ngati chiyambi anali ndi malemba latsopano.

Palibe pixel deta, palibe. Both formats kusungira chithunzi popanda lossy kusamvana, kotero chithunzi chimene chimatuluka ndi yofanana ndi imodzi yomwe inapita mu ndi kusintha angagwiritsidwe ntchito mobwerezabwereza. zimene kusintha ndi kukula kwa fayilo, ndi zimene ntchito kuyenda - kuwala m'lifupi, embedded profiles, ma layers ndi animation onse anathandiza mosiyana pakati lossless mtundu. PNG amagwiritsa ntchito DEFLATE kusamvana pa scanlines zofiltered, choncho aliyense pixel amapulumuka moyenera, kuphatikizapo 8-bit alpha channel. SVG amasunga mawonekedwe monga maulendo a matekinoloje ndi malemba monga malemba, osati monga ma pixels, kotero ndi buku lazolemba kuposa raster grid.

Kuwala kumatha kupezeka pamene mukuyenda ku PNG, WebP, TIFF, GIF, kapena SVG. Kusintha kwa JPG kumadula chingwe cha alpha pambuyo pa khungu loyera - ngati mukufuna kuwala, gwiritsani ntchito mtundu wowala womwe umadziwa kuwala kuposa SVG.

Ma profiles a ICC a ICC amawerengedwa kuchokera ku chiyambi PNG ndipo amaphatikizidwanso ku SVG komwe mtundu umathandizira (JPG, PNG, TIFF, WebP). Ma formats osagwirizana ndi ma profiles amabwerera ku sRGB.

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

Yai - titha kutsitsa mafayilo ambiri a PNG 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.

Kuti tisinthe mtundu wokha, tigwiritsa ntchito libwebp / ImageMagick yomweyo yomwe wolemba desiki agwiritsa ntchito, ndi mtundu wofanana. Kusiyana ndi kuti zida za desiki zimatsegula fayilo imodzi nthawi imodzi; timavomereza masamba ndi kuwayendetsa mofanana.

Mtundu woyambirira ndi 1:1 — SVG wanu wakunja ali ndi pixels zofanana ndi zomwe zili PNG. Pezani /resize-image/ mbali yapadera pambuyo pa kusintha ngati mukufuna kuchepetsa kapena kuwonjezera kukula ngati gawo la ntchito.

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

Ndikoyenera - mafayilo a PNG omwe amatulutsidwa amachitidwa m'mabungwe osiyana ndi omwe amagwira ntchito ndipo amasungidwa m'maola ochepa. Sitimawerenga, sitisunga kapena kugawana deta ya pixel. Kuthamanga kwa deta ndi kusungirako kwa deta kumafotokozedwa pa /privacy/.