RAW12

1 Format Specifications

• no header, little endian, 16bit (12msb padded with 4lsb zeroes)
• starting at the top left, with 3072 rows of 4096 columns
• the data is in bayer pattern RG/GB
• image sensor registers dump (128 x 16bit, big endian) appended

2 Opening in Photoshop

• rename the file extension from ".raw16" to ".raw"

2.1 Samples

XZ compressed sample files (use 7Zip to uncompress under windows: http://www.7-zip.org/)

http://vserver.13thfloor.at/Stuff/AXIOM/ALPHA/RAW/

2.2 Handling the register block in RAW16 files

The DNG converter expects the register block to be present so if it has not been saved with the image in camera:

To append an empty metadata block (sensor registers):

(cat old.raw16; dd if=/dev/zero bs=256 count=1) > new.raw16

To append an existing register block dumped into a file:

cat old.raw16 some.reg > new.raw16

3 RAW12

There is also the derived format that leaves out the 4 lsb zeros.

Convert RAW12 -> RAW16 with imagemagick:

convert -size 4096x3072 -depth 12 gray:input.raw12 -depth 16 gray:output.raw16

Convert RAW12 -> DNG with raw2dng:

raw2dng file.raw12                 # output will be file.DNG; width is assumed 4096, height is auto-detected from file size
raw2dng file.raw12 50 2000         # optional: custom black and white levels