Sinthani SVG ku BMP

Sankhani kukula koyamba lomwe mudzawonetse, chifukwa ichi ndi mapeto a fayilo yosagwirizana ndi kuwala. SVG imasungidwa ngati njira za matematiki ndipo imawoneka yowala pa kukula kulikonse; BMP ndi gridi yokhazikika ya pixel, ndipo kukulitsa kwake pambuyo pake kumatha kuphatikizidwa. Kutumiza kunja kwa kukula koyamba ngati kuli koyenera kwa skrini ya DPI yotsika. SVG imawoneka bwino pa kukula kulikonse, imatha kusinthidwa, imatha kufunidwa komanso kusinthidwa ngati malemba oyera, ndipo nthawi zambiri ndi gawo la kukula kwa PNG yofanana. BMP ndi Windows Bitmap, raw raster mtundu anamanga mu Windows kuyambira 1985.

Sichoncho — BMP siyimakhala ndi njira ya alpha, choncho madera owoneka bwino amapangidwa ndi mtundu wa m'mbuyo, wofiira ngati simusintha. Izi ndi zokhumudwitsa zosayembekezereka kwambiri m'masinthidwewa: logo yomwe imawoneka bwino patsamba lofiira imafika ndi botolo lofiira m'mbali mwake. Sankhani mtundu woyera kuti ugwirizane ndi komwe chithunzicho chidzakhale, kapena kusankha chida chomwe chimasunga alpha. BMP ndi gigantic - 12-megapixel chithunzi ndi pafupifupi 36 MB - ndi palibe browser amaona izo monga nzeru webusaiti mtundu.

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. SVG amasunga mawonekedwe monga maulendo a matekinoloje ndi malemba monga malemba, osati monga ma pixels, kotero ndi buku lazolemba kuposa raster grid. BMP nthawi zambiri amasunga zonse uncompressed pixel mzere ndi ochepa header, chifukwa chake ndi kovuta kwambiri kufotokoza.

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 BMP.

Ma profiles a ICC a ICC amawerengedwa kuchokera ku chiyambi SVG ndipo amaphatikizidwanso ku BMP 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 SVG → BMP 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 SVG 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 — BMP wanu wakunja ali ndi pixels zofanana ndi zomwe zili SVG. 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 SVG 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.