I have a 14bit lossy compressed NEF file from a Nikon D5500. I use the following code snippet to generate a raw histogram with libraw.
LibRaw processor; processor.open_file(input_file); processor.unpack() // Create histogram from processor.imgdata.rawdata.raw_image
The generated histogram does not match the one I see in RawDigger.
The version of the libraw I am using does not have RAWSPEED support compiled in? Is this difference expected?
Could you please explain
Could you please explain 'does not match'?
RAW file sample and histogram you've calculated will help.
-- Alex Tutubalin @LibRaw LLC