Xam ceev cov tshuab xam zauv
Dab tsi yog qhov ceev ceev
Pixels ib nti (PPI) yog kev ntsuas lub ntsuas lub pixel (kev daws teeb meem) ntawm cov khoom siv hauv ntau cov ntsiab lus: feem ntau siv cov duab hauv computer, cov duab thaij duab, thiab lub koob yees duab digital sensors. Lub PPI ntawm lub computer tso tawm tau cuam tshuam nrog qhov loj me ntawm cov zaub hauv nti thiab tag nrho cov lej ntawm cov kab rov tav thiab ntsug.
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Ntau nyob ntawm pixel ceev
Yog tias koj xav suav lub pixel ntom ntawm koj lub vijtsam, koj yuav tsum paub: kab rov tav thiab ntsug pixel suav thiab koj daim duab kab pheeb ces kaum loj. Tom qab ntawv siv cov mis no, lossis siv peb lub laij lej;)
\(
d_p = \sqrt{w^2 + h^2}
\)
\(
PPI = \dfrac{d_p}{d_i} \ \
\)
where| \( w \) | yog dav daws teeb meem hauv pixels |
| \( h \) | yog qhov siab daws teeb meem nyob rau hauv pixels |
| \( d_p \) | yog kab pheeb ces kaum kev daws teeb meem nyob rau hauv pixels |
| \( d_i \) | yog kab pheeb ces kaum loj hauv nti (qhov no yog tus lej tshaj tawm raws li qhov loj me ntawm cov zaub) |
Yog tias koj xav paub ntau ntxiv, mus saib qhov kev paub zoo Linus Cov Lus Qhia Hauv Qab No.