Kutsegula & Kusunga zithunzi za Jpeg: Kodi Zimasokonezadi Zithunzi Zanu?

Zikomo kwa Robert Watcher wa chiimps ndi Robert Watcher Zithunzi zapa alendo osangalatsazi poyankha funso, "Kodi kutsegula ndi kusunganso zithunzi za jpeg mobwerezabwereza kumawononga mawonekedwe azithunzi zanu?"

Ndakhala ndikusangalatsidwa ndi zonena kuti kusunganso mafayilo azithunzi zanu kunyozetsa chithunzicho. Ngakhale ndi dzina losavuta losintha ndikusunganso monga Jpeg padzakhala mbadwo wachisokonezo. Tsopano sindikutsutsana kuti izi ndi zomwe zimachitika - - koma zomwe ndazindikira ndikumverera kwa ojambula ambiri kuti sangasunge ngati jpeg apo ayi atha kukhala ndi chithunzi chosasinthika.

Zaka zingapo zapitazo, ndidachita mayeso potsegula ndikusunga fayilo ya jpeg osakonza chilichonse pakati, ndikusunganso kopambana. Mosiyana ndi zomwe adandikhulupirira (kutsegula ndi kupulumutsa ngakhale kamodzi kapena kawiri zitha kukhala zowononga), sipanakhale kuwononga kwakukulu kwa chithunzi chomwe ndimagwiritsa ntchito pomwe sindingathe kugwiritsa ntchito kapena kuzindikira chithunzicho kapena kusindikiza kusindikiza kwabwinobwino - ngakhale nditatsegula ndikusunga ndikukhulupirira kuti panali nthawi 20 ndisanayambe kuwona zowononga kwambiri makamaka m'malo akumlengalenga.

Chifukwa chake lingaliro langa nthawi imeneyo monga ziliri lero - ndikuti sitiyenera kuda nkhawa mopitilira muyeso posunga kangapo pamtundu wapamwamba kwambiri wa jpeg. Zomwe munthu angapulumutse zimadalira mtundu wazithunzi ndi kugwiritsa ntchito. Nthawi zambiri, tinkakonda kubwerera ku fayilo yoyambirira kuti tisinthe kwambiri m'malo mongotsegulira ndikukonza ndikusunga monga jpeg mobwerezabwereza.

Momwe ndimachitira ndimafayilo anga a jpeg kuchokera ku kamera (chimodzimodzi ndikadagwiritsa ntchito zosaphika pazomwezo) ndikusunga mafayilo anga azithunzi monga .psd kapena .bmp kapena mtundu wina wa mafayilo osasowa kenako palibe vuto ndi manyazi pamene ndikupitiliza kukonzanso ndikupulumutsa. Koma ngati kuli kofunikira, sindingazengereze kupulumutsa ngakhale jpeg wapamwamba kwambiri - ndipo ndakhala ndikuchita nthawi zambiri pomwe ndasunga fayilo yosinthidwa ngati jpeg yosindikiza ndipo pambuyo pake ndimafuna kusintha zinthu pang'ono osayamba mwatsopano.

Chifukwa chake ndimaganiza kuti ndibwerezanso mayeso awa omwe ndidachita zaka zambiri zapitazo - ndipo ndidaganiza zogwiritsa ntchito fayilo kuchokera ku Olympus E-3 yanga yomwe inali ndi nkhani zosiyanasiyana - koma chofunikira ndimafuna chithunzi chomwe chimaphatikizaponso buluu lalikulu losalala madera akumlengalenga omwe ndi mtundu wazomwe zikuwonetsa kusweka kwachithunzichi komanso zokometsera kwambiri. Njira yanga idali yotsegulira fayilo yoyambirira ya jpeg ndikusinthanso fayilo ndikupulumutsa ngati Jpeg quality "12" ndikutseka fayilo ku Photoshop. Kenako ndinatsegulanso fayilo yomwe yangosungidwa kumene ndikusintha fayiloyo ndikusunga ngati mtundu wa Jpeg "12" ndikutseka fayiloyo ku Photoshop. Ndabwereza izi Open / Sungani / Kutseka njira kuti ndikhale ndi mibadwo yambiri.

Ichi ndiye chithunzi choyambirira cha fayilo:

Ndipo ichi ndiye chithunzi cha m'badwo wa 10 mutasunganso monga Jpeg quality 12 ku Photoshop:

Pazinthu zonse zothandiza, ngakhale ndi kuchuluka kotereku, m'badwo wa 10 ungagwiritsidwenso ntchito kusakatula ndi kusindikiza, ngakhale ndikukaikira kuti aliyense angafunikire kupulumutsa katatu kapena kanayi osalola 3 kapena kupitilira apo.

Ndatenga zokolola za 100% kuchokera pa fayilo yoyambayo, fayilo ya m'badwo wa 5, ndi fayilo ya 10'th m'badwo poyerekeza, ndidawasungira pa intaneti pa 100% kuti fanizo likhale lolondola kwambiri.

Mbewu ya pixel 600 × 450 kuchokera mu fayilo Yoyambirira:

Mbewu ya pixel 600 × 450 kuchokera mu fayilo ya m'badwo wachisanu:

Mbewu ya pixel 600 × 450 kuchokera mu fayilo ya m'badwo wachisanu:

Palibe kukayika kuti malo osalala am'mlengalenga amayamba kuwonetsa zovuta za jpeg pakukhazikitsanso mobwerezabwereza, koma ndizomwe zidagunda kwambiri (ndichifukwa chake ndidaziphatikiza pazithunzi zanga) ndipo ngakhale ndi fayiloyi mwina imangodziwika mukamawona 100% pa polojekiti osati mukasindikiza kapena kusintha kukula kuti mugwiritse ntchito pa intaneti (zofala kwambiri). Madera ena owonetserako, akuwonetsa zochepa kwambiri ngati kuli kotsika ngakhale atapulumutsa ambiri. Cholinga changa sichikutanthauza kuti kusunganso kangapo ngati fayilo ya jpeg ndichinthu chabwino kuchita. Koma poyesa ndi zomwe muli nazo ndikugwiritsa ntchito, itha kukhala nkhani yayikulu kwambiri momwe ambiri amapangidwira - ndipo itha kukhala yovuta nthawi yayikulu ikafunika.