Ukuqonda Okujulile Ukuxazulula Okubonakalako
Uma uthola ama-risiti amaphepha, amadokhumenti, noma isithombe somndeni esivamile , isithwebuli ku -in-one-one-printe r sanele. Noma kunjalo, ngezinye izinjongo, ungadinga isithwebuli sokuzimela. Isimo se-office sidinga isithwebuli sedokhumenti . Umculi ocacile noma umthwebuli wezithombe angadinga iskena sesithombe.
Isixazululo se-scanner esicacile
Ku-scanners, ukulungiswa kwe-optical kubhekisela enkampanini yolwazi ukuthi isithwebuli singaskena kumugqa ngamunye olinganiselwe kubalwa ngamachashazi nge intshi (dpi). I-dpi ephakeme ilingana nesinqumo esiphezulu nesithombe sekhwalithi ephezulu ngemininingwane eminingi. Isixazululo esiphezulu se-optical kuma-printer amaningi / eyodwa-scanner singama-300 dpi, okungaphezu kwalokho okuhlangabezana nezidingo zabantu abaningi. Isixazululo sezinkampani ezinzima kakhulu zokunyathelisa amadokhumenti ngokuvamile ku-600 dpi. Izinqumo ezibonakalayo zingahamba kahle kakhulu kubanikazi bezithombe zobuchwepheshe-kufika ku-6400 dpi akuvamile.
Iskena esiphezulu se-resolution asihlali ngaso sonke isikhathi ngokulingana kangcono. Iziphakamiso eziphezulu ziza nezikhulu ezinkulu zefayela. Bayothatha isikhala esiningi kwikhompyutheni yakho futhi bangathatha isikhashana ukuvula, ukuhlela nokuphrinta. Ungacabangi ngisho nokuthumela i-imeyili.
Yisiphi Isinqumo Osidingayo?
Isiphakamiso esiphezulu osidingayo sincike ekutheni uhlela kanjani ukusebenzisa isithombe. Idokhumenti yombhalo ecacile nge-crystal clear at 300 dpi ngeke ibe yinto ecacile kumbukeli ongajwayelekile ngesikhathi sika-6400 dpi.
- Ukuthunyelwa kweWebhu: Iningi labahloli bekhompiyutha libonisa ukuphakama kwama-dpi angama-72 noma ngaphezulu okubhekele ababheki abaphezulu, ngakho-ke uma uskena okuthile okuzobonakala kuwebhu noma uzohamba nge-imeyili, i-300 dpi ingaphezu kokwanele. Ngeke ulahlekelwe yikuphi uma uskena isisombululo esiphezulu, kodwa ngeke uzuze lutho ngaphandle kobukhulu befayili, okungasho okuningi kulabo abanye ekupheleni kwe-imeyili.
- Izithombe: Ngaphandle kokuthi uhlela ukukhulisa izithombe, uzothola ikhwalithi yesithombe esihle ngokuskena ku-300 noma ku-600 dpi. Uma uzophinda kabili ubukhulu bokuqala, kabili i-dpi. Noma kunjalo, abathwebuli bezithombe bangase badinge njengesinqumo esiphezulu sokuthi kungenzeka, ikakhulukazi uma bezokhulisa izithombe.
- Ukuhlelwa kwesithombe: Landela umyalo "kabili u-dpi" uma uhlela ukunciphisa okokuqala ngokuwuncoma bese uyandisa.
- Imibhalo yehhovisi : 300 dpi ingaphezu kokwanele kumadokhumenti amaningi. Ungase futhi ufuna ukushintsha usayizi weskrini ngemuva kwesoftware yokuhlela isithombe ukuze ulondoloze isikhala.
Umbala nokujula kwamanzi
Umbala noma ukujula kancane kuyinani lokwaziswa isithwebuli esiqoqa mayelana nedokhumenti noma isithombe osithwetshulwayo: Ukukhuphuka kancane kancane, imibala engaphezulu isetshenziselwa futhi kubheka kangcono ukuskena. Izithombe ze-Grayscale yizithombe ezingu-8-bit, namazinga angu-256 wegrey. Izithombe zombala eziskena nge-24-bit scanner zizoba nemibala ecishe ibe yizigidi ezingu-17; Ama-scanner angu-36 anika imibala engaphezu kuka-68 billion.
I-trade-off yayizikhulu zefayela. Ngaphandle kokuthi ungumthwebuli wezithombe noma umklami ocacile, akudingeki ukuba ukhathazeke ngokujula kancane, ngoba abaningi abanamaskena banokungenani ukujula kombala we-24-bit.
Isixazululo nokujula kancane kuthinta inani le-scanner. Ngokuvamile, ukuphakama kwesinqumo kanye nokujula kancane, inani eliphezulu.
Ukuvuselela iskena
Uma unesofthiwe yokuhlela isithombe sokuhweba njenge-Adobe Photoshop, ungashintsha usayizi wesilinganiso phansi ukuze ulondoloze isikhala futhi unganciphisi izinga kakhulu. Ngakho-ke, uma isithwebuli sakho sihlola nge-600 dpi futhi uhlela ukuthumela ukuskena kuwebhu lapho i-72 dpi isisombululo esinqunyiwe sokuqapha, asikho isizathu sokuyibuyisela. Noma kunjalo, ukuguqula ukuskena phezulu kungumqondo omubi kusuka kumbono wekhwalithi.