From: Marian E. <eic...@co...> - 2001-06-02 07:54:17
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Glenn Ramsey wrote: > I don't think this is quite right... > > As I understand it there are two sets of offset and gain, the AFE > (=analogue front end) offset and gain and the data processor > offset and gain. The AFE parameters control the gain and offset > of the analogue signal *before* the ADC, the data processor gain > and offsets are applied to the digital data *after* it has been > captured by the ADC and if required can be applied to all the > pixels together or to each pixel individually, as you know. The > data flow can be seen on the diagram on page 1 of the M011 spec. > > AFE gains are set by regs 32h and 33h, the offsets are set by regs > 2F-31h. The data processor offsets and gains are controlled by > regs 36-41h and 49h. Strike. I am far too sloppy with those details. Ok, thus we have a very good opportunity to to white correction. Perhaps this is stuff for a quality level other than "fast", because the capturing of color signals and optimization for white levels (or an predefined range) will take time. TODO: Optimized Slider movement/scan in DoCalibration. It now takes far too a long time. -- Mit freundlichen Gruessen / Yours sincerely Dipl.-Ing, Dipl-Theol. Marian Eichholz, Koeln, Germany pos...@fr... mailto:eic...@co... http://privat.schlund.de/eichholz |