New version v1.09
* Added support for black level calibration
http://miscdata.com/ML/RAW2GPCFv109.zipThe black balancing will remove any remaining fixed pattern noise (FPN) the sensor can produce. Canon 5D3 is very good a suppressing FPN. In my own 5D3 experiments, the black balancing did remove the hot pixels that appear at higher ISOs.
How to black balance:
1) With ISO & resolution parameters set, shoot 100+ frames of RAW with the lens cap on.
2) Then shot your scene(s) that uses these camera settings.
3) when converting using RAW2GPCF, add the -bc#### switch like this
>RAW2GPCF CF0803.avi M21-0803.RAW -bcM21-0802.RAW -422The -bc switch points to the file that was recorded with the lens cap on.
Sample output:
>RAW2GPCF CF0803.avi M20-2209.RAW -bcM20-2208.RAW -422
M20-2208.RAW 1920x1080 107frames 23.976fps
min = 2028, max = 2844, avg = 2059
M20-2209.RAW 1920x1080 229frames 23.976fps
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done
Press any key to continue . . .How it works:
All the frames in the black clip are averaged together, the more frames used the less noise in the pixel map for the black level of the sensor. So instead of subtracting a fixed black offset value for all pixels (all sensors have an offset), each pixel has a customized black level. Even with the nice pixels from the 5D3, there is variation in the black level for each pixel location (see output
min = 2028, max = 2844, avg = 2059.)