constructs an empty buffer

This method defines a correction that compensates for the fact that IIQ files may come from a camera with multiple (four, in this case) sensors combin

allocates the databuffer, and returns owning non-const pointer.

Figure out if a NEF file is compressed. These fancy heuristics are only needed for the D100, thanks to a bug in some cameras that tags all images as

DecodeNikonYUY2 decodes 12 bit data in an YUY2-like pattern (2 Luma, 1 Chroma per 2 pixels). We un-apply the whitebalance, so output matches lossless.