Izithombe Raster kanye nomsebenzi nabo

Lapho usebenza nge ihluzo mgudumbili, kubaluleke kakhulu ukuba baqonde izisekelo yokulandelana kwayo ngokohlu nezimiso ngalo liyoshintshwa, ngamanye amazwi, ukumela, njengoba kubonakala computer. Of izinhlobo ezimbili eziyinhloko kwezithombe - vector kanye raster -each uthola isicelo yayo endaweni ethile, futhi kunezinzuzo zako.

Amayunithi okuyiqembu bitmaps kukhona pixels. Lawa izikwele elincane qapha, athwala futhi adlulisele ulwazi umbala. Ngosizo lwabo bitmaps eligoqiwe like puzzle, futhi ziqondakala iyonke. Quality qapha ukubonisa lezi zithombe incike isibalo Amaphikseli intshi ngayinye. Ngokuyinhloko wonke amakhompyutha yesimanje ekhiqizwa isinqumo 72 noma 96 Amaphikseli intshi ngayinye (ukubaluleka iyahlukahluka kuye ngokuthi imingcele kwesikrini).

izithombe Raster kungenziwa ngokushesha zihlukaniswa kusukela Vector ngokubheka ubukhulu babo. Amafomethi ezijwayeleke kakhulu raster - a .gif, .BMP, .png, .jpeg, .psd nabanye.

izithombe Raster etholakala ngokwakha ifayela ku-Adobe Photoshop usebenzisa amathuluzi eziyisisekelo, kanye kuthwetshulwa nanoma yimiphi imibhalo. Ngaphezu kwalokho, zonke izithombe bangabanye lolu hlobo ihluzo mgudumbili. Ngakho, ngaphandle kokushintsha ifomethi zalezi zinhlobo amafayela kule nqubo, ungakwazi ukugwema ukulahleka ikhwalithi ukuhlanekezela imibala. Futhi ukuphrinta izithombe usebenzisa iphrinta, njengoba umfanekiso bitmap.

Ukuhumusha raster image ibe Vector oluphakeme elula kudinga ihluzo umhleli esekela zombili izinhlobo izithombe kuphela. Kulokhu, lapho ulondoloza isithombe nje lubonise Vector ihluzo format. Nokho, le ndlela akusho ngaso sonke isikhathi ukunikeza imiphumela emihle. Kuyinto nephephile ngesandla Dweba isithombe bitmap ibe vector, kodwa kudinga amakhono okuhle ukusebenza Vector ihluzo umhleli.

Ngakho, ake agcizelele amaphuzu ayinhloko yesithombe bitmap esikrinini - grid pixel, ikhwalithi okuyinto incike isixazululo kanye qapha yakho. ihluzo ezinjalo zingaphenduka kalula nje zibe enye ifomethi. Ukusihlola eduze kwalezi izifunda kukhona ngesimo izithombe polyline komugqa izingxenye okuyizinto imingcele pixels.

izithombe Raster kukhona, akungabazeki, zinezithiyo ezithile kanye nemikhawulo, nakho akunakugwenywa. Ngokungafani Vector ihluzo, izithombe ezinjalo imingcele ukwanda kanye nezinye izinguquko ezinkulu. Nge nokwanda okuphawulekayo esikalini we bitmap, maningi amathuba okuthi kufanele alahlekelwe yimali. Ngakho-ke, ukugcinwa izithombe kwe-pixel yobukhulu enkulu ihlanganisa, ngokulandelana, futhi eziningi memory computer. Ngaphezu kwalokho, ihluzo raster cishe ayisekeli obala izakhiwo. izithombe Kuphela .gif futhi .png afakwa lesi sici, futhi ngenxa yalokho izinga ezingeni eliphezulu.

Raster format afanelekile kakhulu kulabo abasebunzimeni umusa yokudala izithombe izithunzi eziyinkimbinkimbi enengqondo, neminye imiphumela ngakuthathu ukwakheka. Futhi-ke, bezithombe ngubani ukucubungula izithombe zakho ku-Photoshop, ubonisa kuphela bitmap uhlobo ingcaca.