Cov zaub daws teeb meem yog ntsuas hauv pixels. Hauv daim iav dub-thiab-dawb, ib lub pixel muaj qee qhov taw tes, hauv cov xim ib - ntawm peb: liab, ntsuab thiab xiav. Paub txog cov naj npawb ntawm cov khoom ntawd ua ntej thiab kab rov tav, koj tuaj yeem suav lawv tus naj npawb tag nrho, ntxiv rau lawv tus lej lej ntawm qhov ntev.
Cov Lus Qhia
Kauj ruam 1
Yog tias tus naj npawb ntawm kab rov tav thiab kab rov tav yog paub, xam tag nrho cov kev daws teeb meem los ntawm sib tshooj sib lawv. Piv txwv li: 1024 * 768 = 786432. Qhov ntawd tsuas yog qis dua 0.8 megapixel.
Kauj ruam 2
Kev daws teeb meem tsis yog tsuas yog qhov meej, tab sis kuj yog kev txheeb ze. Hauv qhov no, nws tau hais tawm hauv dots ib nti. Ua ntej, siv tus pas ntsuas nrog kev sib cais los ntsuas kab rov tav thiab ntsug ntawm qhov ntev ntawm lub vijtsam. Lawv tuaj yeem sib txheeb ib leeg li 4: 3 lossis 16: 9. Paub txog cov kab pheeb ces kaum ntawm lub vijtsam, koj tuaj yeem nrhiav pom qhov ntev ntawm nws sab uas tsis muaj kev ntsuas - raws li cov lus hauv qab no:
Kauj ruam 3
Hloov pauv qhov ua tau rau nti kom yooj yim. Tom qab ntawv laij cov kab rov tav thiab txoj kev daws teeb meem hauv dots ntawm ib nti. Piv txwv, yog tias lub vijtsam muaj kab pheeb ces kaum ntawm 15 ntiv tes, ces nws qhov dav yog 13.07 nti, thiab nws qhov siab yog 7.35. With 1024 kab rov tav thiab 768 ntsug pixels, qhov daws teeb meem kab rov tav ntawm cov zaub no yog 1024/13, 07 = 78. 35 DPI (teev ib nti) thiab ntsug yog 768/7, 35 = 104, 49 DPI.
Kauj ruam 4
Yog tias tsis muaj cov ntaub ntawv ntawm cov kab pheeb ces kaum ntawm cov zaub, qhia cov keeb kwm dawb dawb ntawm nws qhov screen, muab ib tus pas ntsuas rau nws (tsis txhob nias nws forcibly thiaj li tsis zuaj LCD vaj huam sib luag), thiab tom qab ntawd saib thaj chaw ntawm thaj chaw. nrog rau tus pas ntsuas nyob rau hauv lub khob tsom iav nrog lub plaub paum loj … Suav seb muaj pes tsawg lub pixels nyob hauv 5 millimeters. Multiply qhov tshwm sim los ntawm 5.08 kom tau txais cov dots ntawm ib nti daws teeb meem. Ua ob qho kev ntsuas zoo li no: kab rov tav thiab ntsug.
Kauj ruam 5
Nco ntsoov tias thaum kev daws teeb meem ntawm cov duab tshwm sim hauv LCD saib tsis sib xws ntawm kev daws teeb meem lub cev ntawm lub sensor, ib qho khoom siv hu ua scaler yuav cia li ntsuas qhov ntsuas. Daim duab yog ua tiav siv cov txheej txheem nyuaj, nws tsis tuaj yeem ua kom tsis txhob muaj qhov tsis ploj ntawm qhov pom tseeb. Txhawm rau zam qhov no, teeb tsa lub operating system kom pom cov duab daws teeb meem nrog qhov kev daws teeb meem matrix.
