Dzidza Nezvokuti Mabheti Anoshandiswa Sei muDhijitadha Dhidhijiti
Mabhesi anoshandiswa mumakombiyuta kupa zviduku zvinyorwa mumutauro uyo munhu anogona kuverenga. Sezvo bits ndiyo inoshandiswa pakombiyuta yako, iyo inoshandiswa mudijitography kutora mufananidzo.
Chii chinonzi Bit?
A "bit" ndiyo izwi rinotanga kushandiswa mumakombiyuta emitauro, iyo inomiririra "chiridzwa chebhinari", uye rinoreva chikamu chiduku chemashoko. Inokosha ye 0 kana 1.
Mumifananidzo yekudhijita, 0 inogoverwa kune vanhu vatsvuku uye 1 kuchena.
Mumutauro wemabhinari (nheyo-2), "10" yakaenzana ne2 mu-base-10, uye "101" yakaenzana ne5 mu-base-10. (Kuti uwane mamwe mashoko nezvekushandura nheyo dzepasi-2 kuisa-10, shanyira unitconversion.org Web site.)
Iko Bits Record Record
Vashandi vezvirongwa zvekugadzira digital, zvakadai seAdobe Photoshop, vachaziva nezvemhando dzakasiyana-siyana. Chimwe chezvinyanya kukosha chifananidzo che-8-bit, ine mavara 256 anowanika, kubva "00000000" (nhamba nhamba 0 kana yeusiya) kusvika ku "11111111" (kukosha nhamba 255 kana kuti chena).
Cherechedza kuti pane huwandu huwandu humwe humwe humwe hunotevera. Izvi zvinokonzerwa nokuti 8 bits akaenzana neawa imwe uye imwe yega inogona kurema 256 nyika dzakasiyana (kana mavara). Nokudaro, nokuchinja kusanganiswa kweiyo 1 uye 0 mukutevedzana zvishoma, kombiyuta inogona kugadzira chimwe chema 256 akasiyana-siyana emuvara (2 ^ 8th simba - '2' inobva mumutsetse webhanari we1 uye 0).
Kunzwisisa 8-bit, 24-bit, uye 12- kana 16-bit
JPEG mifananidzo inowanzonzi mifananidzo 24-bit. Izvi ndechokuti iyi fomu yefaira inogona kuchengetedza kusvika ku 8 bits yedata mune imwe neimwe yevatatu mavoti mavara (RGB kana tsvuku, yeguru, uye yebhuruu).
Kubwinya kwepamusoro zvakadai se12- kana 16-bit zvinoshandiswa muSDLRs dzakawanda kuti zvive nemhando yakawanda yemarudzi. Chifananidzo che-16-bit chingava nemashoko 65,653 emavara emhando (2 ^ 16th simba) uye chifananidzo che-12-bit chingava nemazinga 4,096 (2 ^ 12th simba)
DSLRs inoshandisa maitiro akawanda pamagetsi anotsvaira, ayo anosiya maitiro mashomanana ekumira kwemafuro (apo ziso revanhu riri pane rakanyanya kunaka). Kunyangwe mifananidzo ye-16-bit, somuenzaniso, ichange iine toni 16 chete kurondedzera chigadziko chakasviba mumufananidzo. Chimiro chakatsvuka, pakuenzanisa, chichava nemaani 32,768!
Tsananguro Yekudhinda Mifananidzo Yakasviba neVhuchena
Ivhareji inkjet printer inoshanda pa 8-bit scale pamwe chete. Paunenge uchidhinda mifananidzo yakasviba uye yakachena pane yako inkjet, iva nechokwadi chokuti haufaniri kuisa iyo kudhinda uchishandisa chete inks inonzi (grayscale printing).
Iyi inzira yakanaka yekuchengetedza inki kana kudhinda zvinyorwa, asi hazvizogadziri chinyorwa chakanaka chinyorwa. Heino chikonzero ...
Ivhareji printer ine imwe, zvichida 2, yemainki yemain cartridges uye 3 mavara cartridges (mu CMYK). Iyo kombiyuta inotumira data yechifananidzo ichidhindwa uchishandisa iyo 256 mavara akasiyana-siyana.
Kana tikanga tichivimba chete nemashiripiti emagetsi emagetsi kuti tibate mararamiro iwayo, tsanangudzo yemufananidzo yaizorasika uye madidients aisazodhindwa zvakanaka. Haingakwanisi kubudisa zviyero 256 uchishandisa cartridge imwe chete.
Kunyange zvazvo mifananidzo yakasviba nemuchena kushayikwa kwemavara, ichiri kuvimba pane izvo zvakanyatsogadzirirwa 8-bit mavara machena kuti aite toni dzose dzakasiyana dzemavara, madhena, uye machena.
Uku kuvimba nemirairi yemirairo kunokosha kune chero mufananidzo wemifananidzo kuti anzwisise kana vachida mifananidzo yejedi nekutarisa kwemifananidzo yakasviba nemuchena yakagadzirwa nefirimu nepapepa.