Yini i-DPI? Kusho ukuthini iPPI? Siyini isixazululo?

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Ngokuhamba kwesikhathi, imvamisa abantu (imvamisa abantu abasha) abachitha ngayo isikhathi phambi kwekhompyutha iyanda, kudala ukusabela okuningi, ngoba siyakwazi ukubona ukuthi abantu bangaba ochwepheshe bama-computer ngenxa yenani elikhulu lamahora abadlula kulo benza noma imuphi umsebenzi kuwo.

Ngaso sonke lesi sikhathi, kungenzeka ukukhomba ukuthi abantu baluthola kanjani ulwazi olufanele mayelana izindawo eziningi zolwazi ngaphakathi kwesayensi yekhompyutha kanye nokuklama, bazivumela ukubhekana nezinkinga nezidingo eziphakama endaweni yabo ehlobene nalezi zindawo.

Yini i-DPI ne-PPI?

Ngalo mqondo, lo mbhalo uzonikeza imininingwane ngamanye amagama (DPI, PPI), kanye nesisombululo segama, izinto ezibalulekile ukwazi emhlabeni womklamo wezithombe, ngendlela yokuthi umfundi akwazi ukuqonda okushiwo yilawa magama nokubaluleka kokwazi umehluko phakathi kwamagama ezibizo I-DPI ne-PPI, okungadideka kaningi kakhulu.

Ngalo mqondo, siqhubeka nokwethula ukucatshangwa okwethulwe lapha.

I-DPI

Lapho senza ukuphrinta, isithombe sethu singatholakala ku- izinqumo eziningi Futhi njengoba sazi kahle, ukuxazululwa kunomthelela omkhulu kwikhwalithi yomkhiqizo wethu ocacile. Ngalo mqondo, i-DPI ihambelana namazinga wokuxazululwa amaphrinta angaletha ngesikhathi sokuphrinta.

Ngale ndlela, singabikezela ukuthi ngenxa yezizathu zomnotho, kuzoba khona Izinhlobonhlobo eziphakathi kwamazinga we-DPI wephrinta ngayinye. Kodwa-ke, kubonakala sengathi kunamazinga amele we-IPR futhi kubonakala sengathi I-300 DPI zingahle zanele ukukhiqiza isithombe sekhwalithi enhle.

Kodwa-ke, kukhona amaphrinta namuhla angaba namazinga we-DPI angafika ku-3000.

Ngaphandle kwamazinga aphezulu e-DPI ingaqinisekisa izithombe ezisezingeni elihle, kudingekile ukucashile futhi kuthobele amazinga amadivayisi angakwazi ukukhiqiza ngokujwayelekile, ngale ndlela, kusho ukuthi abasebenzisi kufanele baqaphele ngakho konke ukuguqulwa abakwenzayo ku-DPI yamaphrinta abo lapho beseshweni izithombe ezisezingeni eliphakeme.

Lezi zinyathelo zisebenza nokuskena, ngenxa yalesi sizathu, kunconywa ukuthi lapho kwenziwa imisebenzi yokuskena, basebenze nabo Amazinga e-DPI angekho ngaphansi kwama-300, ngendlela yokuthi izithombe ziveze amazinga ekhwalithi afanele.

I-PPI / PPP

Njengoba nje kukhona izinqumo zezithombe zokuphrinta nokuskena, kukhona nezinqumo zokuqapha kwethu.

Uma sibhekisa esinqumweni sokuqapha kwethu, kufanele kuqashelwe ukuthi, ngokuvamile, abaqaphi bazokwethula izinqumo zabo futhi ngale ndlela, Ama-IPRs kuzodingeka ukuthi aguqulelwe ku-PPI / PPP futhi ukuthi lawa magama amagama azoba yilawo mazinga okulungiswa esizowathola kusiqaphi sethu, lapho izithombe (noma ngabe yi-DPI yazo), zizoshintshwa ngesikhathi sethulwa esithombeni sokuqapha.

Kukhona nokunye ukungabaza mayelana ne- umehluko phakathi kwe-PPI ne-PPP futhi empeleni, umehluko kuphela phakathi kwalawa magama amabili awusebenzi, ngoba owokuqala yisiqubulo esiNgisini kanti esesibili, isifinyezo ngesiSpanish.

Isinqumo

Lokhu okwedlule akuyona into engaphansi noma engaphansi kwe inani lamaphikseli mega isithombe esiqukethe. Ngale ndlela, isithombe esinokulungiswa kwamaphikseli we-mega ayi-1024 × 768, kuzokwenzeka ukubala inani elithile lamaphikseli ngesithombe ngasinye.

Ngokuvamile, isibalo esiboniswe ngenhla besilokhu sijwayelekile kakhulu ezithombeni eziningi ezethulwa kuzingxenyekazi ezahlukahlukene.

Ngale ndlela, singakwazi lokho lawa magama amathathu abhekise kuzakhi ezahlukahlukene. Kungasiza kakhulu ukuphatha lolu lwazi lapho umdwebo wesithombe imayelana, nokuthi kukhulunywa ngokunyathelisa nokuskena, ukuze sazi ukuthi amaphrojekthi ethu abamele angaba sezingeni eliphakeme kangakanani.