These files are floating These files are floating-point DNG files compressed with deflate compression. To decode such files by LibRaw (without DNG SDK) you need to build LibRaw with USE_ZLIB defined and libz linked. Here is tiff file produced from your sample by dcraw_emu -T (built w/ options mentioned above): https://www.dropbox.com/s/b2tpar7n395ee2j/_1010194-hdr.dng.tiff?dl=0 -- Alex Tutubalin @LibRaw LLC reply
These files are floating-point DNG files compressed with deflate compression.
To decode such files by LibRaw (without DNG SDK) you need to build LibRaw with USE_ZLIB defined and libz linked.
Here is tiff file produced from your sample by dcraw_emu -T (built w/ options mentioned above): https://www.dropbox.com/s/b2tpar7n395ee2j/_1010194-hdr.dng.tiff?dl=0