Vim li cas thiaj muaj xim sib txawv hauv cov ntawv luam tawm?

Vim li cas thiaj muaj xim sib txawv hauv cov ntawv luam tawm?

Qhov sib txawv los yog nyob deb ntawm ob xim yog ib qho kev ntsuas tseem ceeb hauv kev tshawb fawb xim. Nws tso cai rau kev soj ntsuam ntau ntawm cov ntsiab lus yav dhau los tau piav qhia tsuas yog nrog cov npe. Quantification ntawm cov khoom no yog ib qho tseem ceeb rau cov uas nws ua hauj lwm tseem ceeb heev rau xim. Generic Definition Euclidean nrug yog siv nyob rau hauv ib tug ntaus ntawv-yooj yim xim qhov chaw.

Txij li feem ntau cov ntsiab lus ntawm chromatic aberration yog qhov deb ntawm qhov chaw xim, txoj hauv kev los txiav txim qhov deb yog Euclidean nrug. Yog tias koj tam sim no muaj RGB (liab, ntsuab, xiav) tuple thiab xav nrhiav qhov sib txawv ntawm cov xim, ib qho ntawm txoj hauv kev yooj yim tshaj plaws los ua qhov no yog xav txog R, G, B linear qhov ntev uas txhais qhov chaw xim.

Qhov no yog qhov tseem ceeb thaum muab ib qho xim rau ib qho xim thiab yuav tsum paub yooj yim yog tias qhov kev ncua deb ntau dua. Yog hais tias koj ntxiv cov squared xim nyob deb, xws li ib qho kev ntsuas ua tau qhov sib txawv ntawm cov xim nrug.

Muaj ntau qhov kev sim hnyav RGB qhov tseem ceeb kom haum rau tib neeg kev xav, qhov twg cov khoom feem ntau hnyav (30 feem pua ​​​​rau liab, 59 feem pua ​​​​rau ntsuab, thiab 11 feem pua ​​​​rau xiav), tab sis cov no tseem ceeb heev hauv kev txiav txim siab xim, thiab raug. Pab txhawb rau qhov ci ntsa iab ntawm cov xim no ntau dua li qhov uas tib neeg lub zeem muag tsis kam ua rau cov xim no