22/02/25Matsakaicin firam ɗin kamara shine saurin da kyamarar zata iya siyan firam ɗin. Babban gudun kamara ya zama dole don ɗaukar canje-canje a cikin batutuwan hoto masu ƙarfi, da ba da izinin fitar da babban bayanai. Ko da yake, wannan babban kayan aiki yana zuwa tare da yuwuwar faɗuwar babban adadin bayanan da kyamara ke samarwa. Wannan zai iya ƙayyade nau'in haɗin yanar gizon da ake amfani da shi tsakanin kyamara da kwamfuta, da kuma yawan ajiyar bayanai da sarrafa bayanai. A wasu lokuta, ƙila ƙila ƙila ƙila ƙila ƙila ƙila ƙimar firam ɗin ta iyakance ta ƙimar bayanan da ake amfani da shi.
A yawancin kyamarori na CMOS, ana ƙididdige ƙimar firam ta adadin layukan pixel masu aiki a cikin sayan, waɗanda za a iya rage su ta amfani da yankin sha'awa (ROI). Yawanci, tsayin ROI ɗin da aka yi amfani da shi da matsakaicin ƙimar firam ɗin suna da ingantacciyar daidaituwa - rage adadin layukan pixel da aka yi amfani da su yana ninka ƙimar firam ɗin kamara - kodayake wannan ƙila ba koyaushe haka lamarin yake ba.
Wasu kyamarori suna da 'hanyoyin karantawa' da yawa, waɗanda yawanci ke ba da izinin yin ciniki don rage kewayo mai ƙarfi, a musanyawa don ƙimar firam mafi girma. Misali, sau da yawa kyamarori na kimiyya suna iya samun yanayin 'High Dynamic Range' mai girman 16-bit, tare da babban kewayo mai ƙarfi yana ba da dama ga ƙaramar ƙarar ƙaranci da babban ƙarfin rijiyar. Hakanan akwai na iya zama yanayin 'Standard' ko 'Speed' mai 12-bit, wanda ke ba da kusan ninki biyu na firam ɗin, don musanyawa don raguwar kewayon ƙarfi, ko dai ta hanyar rage ƙarancin rijiyar hoto mai ƙarancin haske, ko ƙara ƙarar ƙarar ƙara don aikace-aikacen haske mai haske inda wannan ba damuwa ba.
