Raster vs Vector Graphics
Cov neeg uas muaj kev txaus siab me ntsis hauv cov duab hauv computer paub tias cov duab kos tsis tuaj yeem kos tau siv cov ntawv thov xws li cov ntawv sau thiab cov ntawv nthuav tawm, thiab cov ntawv thov tshwj xeeb yuav tsum tau kos duab. Ob lub tswv yim nrov ntawm cov duab nthuav qhia yog Raster thiab Vector. Txawm hais tias cov txheej txheem no muaj qhov sib xws, muaj qhov sib txawv uas yuav tau hais qhia hauv kab lus no.
Vector Graphics
Cov no yog tsim los ntawm kev pab los ntawm kev kos duab lossis duab kos duab xws li Adobe illustrator. Cov duab no yog tsim los ntawm cov kab, cov khoom thiab cov ntawv sau uas yog lej txhais. Cov no hu ua vector vim qhov ntev sawv cev qhov loj thiab kev taw qhia hauv qhov chaw sawv cev rau kev coj. Ib cov ntaub ntawv vector muaj cov ntaub ntawv ntawm ntau yam duab xws li qhov chaw lawv pib thiab qhov nkhaus ntawm txoj kev. Nyeem cov ntaub ntawv no, software kos duab vector. Qee qhov nrov vector duab hom yog.ai,.cdr,.cmx, thiab.wmf. Corel kos thiab Adobe Illustrator yog cov software nrov tshaj plaws uas siv rau lub hom phiaj.
Raster Graphics
Cov no yog cov duab bitmap teeb tsa hauv daim phiaj uas muaj pixels. Cov pixels me me no muaj cov ntaub ntawv xim thiab thaum lawv koom ua ke, ib qho duab tsim. Cov hom raster nrov yog.bmp,.jpg,.jpg,.gif,.png, thiab.pict. Software uas feem ntau siv los kos duab raster yog Microsoft xim, Adobe Photoshop thiab GIMP.
Qhov txawv ntawm Raster thiab Vector Graphics
• Raster cov duab yog kev daws teeb meem nyob ntawm. Qhov no txhais tau tias nws tsis tuaj yeem hloov pauv qhov loj me yam tsis muaj kev cuam tshuam nrog cov duab zoo. Ntawm qhov tod tes, vector graphics tsis nyob ntawm kev daws teeb meem. Koj tuaj yeem nce lossis txo qhov loj me yam tsis cuam tshuam rau cov duab zoo.
• Raster cov duab ib txwm muaj duab plaub. Qhov no txhais tau hais tias thaum koj pom cov duab no nyob rau hauv lwm yam duab, nws tsuas txhais tau hais tias tus so ntawm pixels muaj tib xim raws li keeb kwm yav dhau ntawm daim duab. Ntawm qhov tod tes, cov duab vector tuaj yeem ua txhua yam zoo.
• Vector duab tsis tuaj yeem siv los ua cov duab tiag, uas ua tau nrog cov duab raster. Vector duab zoo li muaj cov duab tas luav zoo li tsos. Txawm li cas los xij, vector graphics thev naus laus zis tau nce nrawm thiab sai sai peb yuav tuaj yeem muaj cov duab tiag tiag ib yam li hauv cov duab raster.
