Inqanaba leGreyscale Grayscale, ekwaziwa njengenqanaba lombala okanye isikali esingwevu, ibhekisa kukukhanya kombala. Kwitekhnoloji yokubonisa idijithali, i-grayscale yeyona nto imisela inani lemibala ebonisiweyo. Ngokuqhelekileyo, okukhona i-grayscale iphezulu, kokukhona ityebile imibala ebonisiweyo, kokukhona uthambile umfanekiso, kwaye kokukhona kuba lula ukuchaza iinkcukacha ezityebileyo. Umphakamo wegreyscale uxhomekeke ikakhulu kwinani lamasuntswana oguqulelo lwenkqubo yeA/D. Ngokuqinisekileyo, i-chip yenkqubo yevidiyo yenkqubo, imemori, kunye nenkqubo yokuhambisa kufuneka ibonelele ngenani elihambelanayo leebhithi ukuyixhasa. Iziboniso ze-LED zasekhaya zisebenzisa ikakhulu inkqubo ye-8-bit processing, oko kukuthi, amanqanaba angama-256 (28) egreyscale. Ngamafutshane, kukho ukukhanya okungama-256 ukusuka kumnyama ukuya kumhlophe. Ukusebenzisa imibala ephambili emithathu ye-RGB, 256×256×256=16,777,216 imibala inokwenziwa. Oko kukuthi, ezona ziqhele ukubhekiswa kwi-16 megacolors. Iziboniso zohlobo lwamazwe ngamazwe zisebenzisa iinkqubo ze-10-bit processing, okuthetha ukuba amanqanaba angama-1024 egreyscale, evumela imibala ephambili ye-RGB ukuba yenze imibala ye-1.07 yebhiliyoni.
Ngelixa i-grayscale iyinto ethatha isigqibo ekumiseleni inani lemibala, asiyomeko yokuba iphezulu ingcono. Okokuqala, isisombululo seliso lomntu silinganiselwe. Okwesibini, ukonyusa inani lamasuntswana kubunzulu bokuqhuba kwenkqubo kubandakanya utshintsho kwimiba eyahlukeneyo yokusetyenzwa kwevidiyo, ukugcinwa, ukuhanjiswa, kunye nokuskena, ukonyusa kakhulu iindleko kunye nokunciphisa iindleko{2}}ukusebenza. Ngokubanzi, abathengi okanye iimveliso zorhwebo zinokusebenzisa iisistim ze-8-ze-bit, ngelixa iimveliso zebakala losasazo zinokusebenzisa iinkqubo ze-10-bit.
Amanqanaba oCalucalulo oluKhanya: Amanqanaba okucalucalula okuqaqamba abhekiselele kuluhlu lwamanqanaba okukhanya kumfanekiso onokuthi iliso lomntu likwazi ukwahlula, ukusuka komnyama ukuya kowona uqaqambileyo. Njengoko kukhankanyiwe ngaphambili, ezinye iziboniso zinamanqanaba aphezulu egreyscale, afikelela kuma-256 okanye amanqanaba angama-1024. Nangona kunjalo, ngenxa yobuthathaka obulinganiselweyo beliso lomntu ekukhanyeni, la manqanaba egreyscale akakwazi ukwahlulwa ngokupheleleyo. Ngamanye amazwi, amanqanaba amaninzi akufuphi negreyscale anokubonakala ngokufanayo kwiliso lomntu. Ngaphezu koko, ukubonwa komntu ngamnye kuyahluka. Kwimiboniso, amanqanaba aphezulu e-grayscale iliso lomntu linokwahlula, ngcono, kuba umfanekiso obonisiweyo ekugqibeleni ungowombono womntu. Okukhona imigangatho yokukhanya ngakumbi iliso lomntu elinokwahlula, kokukhona likhulu isithuba sombala wesikrini sokubonisa, kwaye kokukhona sikhulu ikhono laso lokubonisa imibala etyebileyo. Amanqanaba okucalucalula okuqaqamba angavavanywa kusetyenziswa isoftware ekhethekileyo; ngokubanzi, isikrini sokubonisa ukuphumeza amanqanaba angama-20 okanye ngaphezulu kuthathwa njengomgangatho olungileyo.
I-Grayscale Non{0}}utshintsho olululo: I-Grayscale engekho{1}}inguqu ehambelanayo ibhekiselele ekuguquleni idatha ye-grayscale ngokwedatha ye-empirical okanye enye i-arithmetic non{2}}ubudlelwane obungenamgca phambi kokuba inikezelwe kwisikrini sokubonisa. Kuba ii-LED zizixhobo ezingqameneyo, iimpawu zazo zokubonisa zahlukile kwiimpawu ezingezizo{4}}ezingezomda zokubonisa iimonitha zemveli. Ukuqinisekisa ukuba isiphumo somboniso we-LED sihambelana nomthombo wedatha yemveli ngaphandle kokuphulukana nemigangatho engwevu, uguqulo olungangqamananga lwedatha ye-grayscale luqhele ukwenziwa kwizigaba zamva zenkqubo yokubonisa ye-LED. Inani leebhithi kwidatha eguquliweyo landa (ukuqinisekisa ukuba akukho datha yegreyscale elahlekileyo). I-4096-inqanaba okanye i-16384-i-grayscale okanye ngaphezulu ibango labanye abanikezeli benkqubo yolawulo lwasekhaya ibhekisa kubungakanani bendawo engwevu emva kokungeyo{19}}inguqu engqamene{12}} amanqanaba asebenzisa i-8{21}}bit umthombo ukuya kwi-12-bit 6 isithuba sokuguqulwa kwe-8, isithuba se-8 ye-bit ye-12, i-8 ukuya kwi-16-bit non-linear iteknoloji yoguqulo. Utshintsho olungelulo mgca usebenzisa umthombo we-8-bit ngokuqinisekileyo uya kubangela indawo enkulu egreyscale kunomthombo we-8-bit. Ngokuqhelekileyo, kufuneka ibe ubuncinane iibhithi ezili-10. Ifana negreyscale, le parameter ayiyonto ingcono xa inkulu; Iibhithi ezili-12 zihlala zanele kwiinguqu ezininzi.
