Dalsa Piranha ES-80-08k40-00-R User Manual

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Dalsa Piranha ES-80-08k40-00-R User Manual Manual pdf 62 page image

Piranha ES-xx User Manual03-032-20070-02 Teledyne DALSA62Setting Digital OffsetPurpose: Sets the d igital offset. Digital offset is set to zero w hen youperform FPN correction (ccf command ). If you are unable toperform FPN correction, you can partially remove FPN byad justing the d igital offset.Syntax: sdo t iSyntax Elements: tTap selection. Allow able range is 1 to number of CCD taps,or 0 for all taps.iSubtracted offset value in a range from 0 to 511 (12-bit LSB).N otes:  When su btracting a d igital valu e from the d igital vid eosignal, the ou tp u t can no longer reach its m axim u m u nlessyou apply d igital gain u sing the ssg com m and . See thepreviou s section for d etails on the ssg com m and .Related Command s: ssg, ccfExample: sdo 0 100FPN CorrectionPerforming FPN CorrectionSyntax: Performs FPN correction and eliminates FPN noise by subtractingaw ay ind ivid ual pixel d ark current. For a complete d escription onhow to use this command , see the Flat Field Correction Overviewon page 58.Syntax: ccfN otes:  Before perform ing this com m and , stop all light fromentering the cam era. (Tip: cover lens w ith a lens cap.) Perform all analog and d igital ad ju stm ents beforeperform ing FPN correction. Perform FPN correction before PRN U correction. The ccf com m and is not available w hen the CCD d irectionis externally controlled (scd 2) (see Direction Control onpage 26). Direction control m u st be stable w hile the cam erais calcu lating coefficients. Available in TDI Mod e only. Save coefficients before changing d irections, changingoperating m od e, or pow ering off.Related Command s: ccp, cpaExample: ccf