Volume flip

The reconstructed volume can be flipped relatively any axis (X,Y or Z) to meet requirements regarding accurate object orientation.

Conversion to Hounsfield units 

Cobra incorporates an option to convert output images to Hounsfield units (HU). By definition, HU is the scale where water has a density 0 and air gets a density –1000 so if the scanner is accurately calibrated to get accurate object densities in mg/cm3 then HU scaling is just offset values by -1000. A user also has an option to apply arbitrary offset value.

Thresholding  signal to keep it above zero

Some 3D viewer software packages or/and applications require output image densities positive (the most common case is requirement of 12-bit dynamic range between –1024 and +3071 HU). Cobra supports an option to cut off a signal below 0 mg/cm3 (-1000 HU)

Non-linear scaling

There is an option to apply an additional gain (scale) factor to output image values higher than 2000 (mg/cm3). It allows boosting a bone contrast in cases when such a contrast is substantially lower than should be comparing to real physical density  values.