Buyisela ubukhulu PNG

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Indlela yokuguqula ubukhulu PNG

1 Layisha phezulu i-PNG images oyifunayo ukuguqulwa usayizi wayo — sebenzela kusuka ku-original enkulu onayo endaweni yokukopela okwenze wancipha kabili.

2 Ngenisa ububanzi obufunayo, ubude obufunayo noma iphesenti, futhi ushiye ukuvala isilinganiso sesimo esivulekile ngaphandle kokuthi ufuna ukudlulisa ngokuzimela.

3 Sebenzisa ukuguqula ubukhulu; yonke ihele eqenjini lithathwa kulapho lifuna khona ngesinqumo esifanayo.

4 Layisha phezulu ihele eliguqulwe isilinganiso PNG, noma ihele lonke lihlanganise njengehele elilodwa.

Buyisela ubukhulu PNG Imibuzo Evame Ukubuzwa

Ingabe ifomethi yomsuka ithinta imiphumela yokuguqula ubukhulu?

Isebenza. I-PNG i-DEFLATE engalahlekelwanga nge-8-bit alfa channel ephelele ne-16-bit ububanzi obukhethwayo, ngakho-ke ayikwazi ukuncipha uma igcinwa futhi kodwa itholakale enkulu kuma-contents wezithombe. Lokhu kusho ukuthi ngabe ukuncipha kwehele kuyisimangalo se-pixels noma simangalo sokuphinde ubhale kabusha.

Ingabe kukhona okuthile okukhethekile ku PNG okufanele ngibhekane nalo?

Yebo — Akukho sinqumlisi somgangatho esingakwazi ukukhohlwa — i-PNG ihamba ngezinyawo ngokucophelela, ngakho into eyodwa kuphela eguqula izindleko zakho yisayizi yefayela. Kufanele ukuhlola ngaphambi kokuguqula ubukhulu behele, ngeke ukwazi ukulivuselela.

Indlela i Buyisela ubukhulu PNG eshintsha ngayo izilinganiso?

Ngokucacile, ama-pixels aphinde athathwe nge-Lancos filter futhi abhalwe emuva ngaphandle kokulahleka, ngakho-ke into eyodwa olahlekelwa yiyo yimingwane engeke ifike kuma-pixels ambalwa; akukho okushiwo yi-encoder ephezulu. Unikeza isinqumo sobubanzi, isisinqumo sobude noma isiphesenti, futhi isebenza kusuka ku-original ngaphezu kokukopiwe okuncane ngaphambili.

Ingabe ngigcina isilinganiso sesimo, noma ngicindezele izilinganiso ezifanele?

Zonke ezimbili. Khusela isilinganiso futhi ubukhulu olunye luvela kwezinye, okuwukuthi lokho ofuna kakhulu. Khusela futhi uthola inani elifanele obhalela, ngezindleko zokuziqinisa — okudingekayo ku-slot eqinile, okungalungile ku-photo.

Ingabe isixhumi se-alpha sizohlala?

Yebo. I-PNG ne-TIFF zifaka isixhumi esigcwele se-8-bit alfa futhi zigcinwa kuze kube yilapho. Zihlanganiswa kuphela uma ubeka inhloso yohlelo olungena-alpha, lapho ama-pixels acacile ehlanganisana emhlophe.

Yini engikwazi ukuyifaka ku Buyisela ubukhulu PNG?

PNG, BMP ne TIFF yifomethi ye-raster engalahlekelwa yisimo esiphatha ngokuqondile, futhi ama-lossesy sources (JPG, WebP, GIF) asebenza futhi uma ufuna ukuba kulowo mhlangano. I-TIFF enekhasi elilodwa noma eliningi itholakale futhi iphathwa ikhasi ngekhasi.

Ingabe kunesilinganiselo sobukhulu behele ku Buyisela ubukhulu PNG?

Yebo: ama-akhawunti amahhala asebenza izithombe kuze kube yi-5 MB ngayinye; ama-sources angeke alahlekelwa yilutho afinyelela esiphethweni ngokushesha kunama-photographs, ngoba akukho okuthunyelwe okwamanje. Uma ungaphezu kwayo, ukushintshana ku-PNG kuqala kuvame ukunethezeka ngokwayo — i-BMP ivame ukube yiminyaka eyisithupha kuya kweziyishumi ubukhulu besithombe esifanayo njenge-PNG.

Ingabe Buyisela ubukhulu PNG izonciphisa ukhwalithi ye PNG images yami?

Akukho. Umsuka ongenalutho ujikeleza-uhambe nge-bit-efanele, ngakho-ke uma ungacela ngokucacile ifomu lokukhishwa elinalutho ama-pixels abuyela emuva yi-pixels asuka ngaphakathi. Lokhu kuyisizathu esiphelele sokuqhubeka nokusebenza kulolu mndeni ngenkathi uqhubeka nokulungisa.

Kungani isayithi elisha lefomethi lisebenza Buyisela ubukhulu PNG?

WEBP.to ifakwe ngokuya ngendawo emisha yokushintshana kwazo zonke izilungiselelo ezidala: ifomu elilodwa elikwenza i-lossy, lossless, alpha ne-animation, futhi lihlala lincane kune-JPEG noma i-PNG eyavela kuyo. Abantu bafika lapha bethathe isinqumo sokuthi amaphutha adlulele abiza i-bandwidth, futhi lo sinqumo siphakamisa isikhala: yini ubukhulu, yini ubuhle, yini ekwenzeni ukubukeka. Buyisela ubukhulu PNG ku-upload efanayo ne-akhawunti efanayo ngakho-ke lezi mibuzo ziphendulwa endaweni eyodwa.

Uma i Buyisela ubukhulu PNG iphume, yini efanele kwenziwe ngemuva?

Umguquli kule ndawo uhambisa izithombe ku-WebP, PNG, JPG ne AVIF, lapho ukhetha khona ukuthi ihele elincane lizolahlekelwa yimiboniso eminingi. Ukwenza lokhu ngokulandelana kubaluleke kakhulu: khetha ama-pixels kuqala futhi ibhokisi ngemuva, ngoba ibhokisi liyisinqumo esiphansi futhi ama-pixels abiza kakhulu.

Ingabe amasayithi afana nawo asebenza ngento ehlukile?

Ama-engine afana — ama-library afanayo, abasebenzi abafanayo, ama-caps afanayo. Okuhlukile ukuthi umbono uxhunywe, futhi umbono uhlala lapha ku-property yefomethi lendawo ibizwa ngemuva: i-.webp efana nengxenye ingagcina i-VP8 elahlekile, elahlekile, noma i-animated, ngakho-ke indlela yokusebenza efanele isinqunywa ngefayela ngalinye ngaphezu kwengxenye ngayinye.

Yini ezoba nehele lami, futhi ngabe i-akhawunti idingeka?

Akukho akhawunti, futhi akukho okugcinwa: ukuthunyelwa kususwa kubasebenzi ngemuva komsebenzi ophelile, futhi akukho okuhlolwa, okudwetshwe noma okuhlolwe. Ama-akhawunti akhona kuphela ngembali nenani leqembu.