I okuphakade umbuzo: Yini okungukuthi DPI?

Kuyini DPI? Akuwona wonke umuntu uyazi impendulo yalo mbuzo. Futhi lesi sihloko sizokusiza.

DPI (Dots Per Inch) - emacashati intshi ngayinye. Isetshenziselwa ukucacisa ukulungiswa kwesikrini. Kodwa abanye DPI udidekile ukuqapha PPI (Amaphikseli Per Inch). Lesi sakamuva kumele inani Amaphikseli intshi ngayinye.

Ngokwesibonelo: a skwele elilodwa intshi kuzomele iboniswe esibukweni qapha isinqumo 96 image dpi, lapho iqembu ngalinye sizoqukatha 96 Amaphikseli; ukunyathelisa ephepheni 600 Amaphikseli bayadingeka ohlangothini lapho isinqumo 600 DPI.

Ukuze uqhathanise: inkulumo mayelana lesinqumo high izithombe (okufana 3000h1500 lapho ububanzi isithombe 3000 Amaphikseli, futhi ukuphakama - 1500). Ungafunda kulokhu ukuthi isithombe mikhulu lapho zibhekwa kuyi-. Yini eyokwenzeka uma uwulethe cindezela? Ngenxa yale njongo, futhi kukhona eside DPI, ebheka emacashati ukuthi kuzokwenza iphrinta intshi iphepha ngalinye.

inothi zomlando: DPI qapha

Kuvele VGA 80s ekuseni DPI isinqumo ngabaqaphi ubudala ube 70 kuya 74, lapho okufanayo Apple imikhiqizo (Macintosh Abaqaphi) kwadingeka isinqumo 72 DPI, lapho omunye kwe-pixel sifana yangempela inkomba typographic e 1/72 intshi.

Ucwaningo luye lwabonisa ukuthi ibanga Iso lomuntu esikrinini qapha kathathu kunangendlela ibanga iphepha (amaphephandaba, izincwadi), ngaleyo ndlela isithombe esikrinini kuyinto ephawulekayo ezincane. Ukuze umsebenzi ukhululekile futhi sihambisana Ubukhulu langempela yesithombe, kwanqunywa ukuba ukufaka isofthiwe isinqumo 96 DPI. Kodwa empeleni, isinqumo ngabaqaphi 70 - 74 DPI.

kamuva kuphela, IBM ukhiphe qapha isinqumo 96 DPI. Ngokushesha ngemva kwalokho, isofthiwe ukwesekwa 120 DPI senziwa. Lokhu nullified le sesibopho ukuthobisa index langempela typographical ka 72 DPI.

Kuyini DPI: guqula isimo izinqumo

Okokuqala, ekushintsheni DPI kuthinta lesifanele isibonisi izakhi kanye ihluzo esikrinini, lena akuyona indlela ukwandisa noma ukunciphisa usayizi amafonti nezimpawu. Uma umbhalo esikrinini nesincumo lesifanele ibukeka incane kakhulu, kubalulekile ukuba ukushintsha lingakanani, futhi hhayi ukuya izinqumo amasethingi.

Esinye isici, ngisho ingozi engalungile DPI kulungiselelwa kufihlwe umehluko kufundisa usayizi wesithombe kwesikrini futhi uprinte lo imiphumela. Emkhakheni wezingalo ukuthuthukiswa software kanye okungalungile isethi ukubaluleka DPI kungaholela belingafundeki umbhalo esibonakalayo noma sibalo sikhulu kakhulu (izakhi ezinkulu esibonakalayo) uyongena unjiniyela ukunciphisa endaweni yokusebenza (umbhalo), okuyinto Akuvumelekile a kahle obala DPI zesikrini.

Kukhona ezinye iziqondiso abathuthukisi kanye abalandeli isofthiwe ngokwezifiso. Kungcono ukwakha uhlelo noma isethulo izifanekiso ezikhipha izinkomba kungalingani DPI. Noma yimuphi esibonakalayo ezinjalo izoveza kahle zonke ngabaqaphi nge isixazululo ezahlukene. Uma usebenzisa umfanekiso bitmap kufanele ukulungiselela imidwebo emibili nge ezahlukene DPI inkomba (96 futhi 120). Futhi isinqumo ezahlukene qapha isithombe izokhetheka ezifanele.

Kuyini DPI: isiphetho

Modern interface yomsebenzisi software wokusebenza eligxile isinqumo sekhono qapha e-96 DPI, futhi 120, okuyinto a plus enkulu. Kodwa abanye abashayeli zamakhadi isiqophi futhi qapha ikuvumela ukusetha incazelo siqu umbhalo, amabhokisi engxoxo, nezinye izinto kancane eziyobenza ukubonisa engalungile yesithombe.

Ukuqedela isithombe waphinda ukuchaza lokho DPI nge isibonelo esilula. Gada Ubukhulu ngokomzimba zihlala zinjalo noma kunjalo, futhi uma ukushintsha ukulungiswa kusukela 1024x768 ukuze 1280x1024 nokushintsha DPI. Yesilinganiso incipha futhi kukhona eziningi isikhala sesikrini, kodwa kuzo zonke izingxenye desktop kanye ifonti azishintshile. Amaphikseli ngokwabo enciphile ukuze uvumelane endaweni efanayo kwesikrini, ngesikhathi sinye.