1) raw2image_ex do several operations in one pass: creates image[] structure, subtracts black and re-calculates channel maximum and do geometrical transformation for Fuji.
2) black level is black+cblack
3) White levels may be different for different channels (e.g. many Nikons)
1) raw2image_ex do several operations in one pass: creates image[] structure, subtracts black and re-calculates channel maximum and do geometrical transformation for Fuji.
2) black level is black+cblack