--- header unit 0: primary ---
SIMPLE = T
BITPIX = 16
NAXIS = 3
NAXIS1 = 640
NAXIS2 = 512
NAXIS3 = 3
BSCALE = 1.000000E+00
BZERO = 3.276750E+04
DATAMAX = 6.553500E+04
DATAMIN = 0.000000E+00
HISTORY ImageMagick 6.8.8-1 Q16 x86_64 2018-04-03 http://www.imagemagick.org