diff options
Diffstat (limited to 'sys/imio/iki/oif/imhv1.h')
| -rw-r--r-- | sys/imio/iki/oif/imhv1.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/sys/imio/iki/oif/imhv1.h b/sys/imio/iki/oif/imhv1.h new file mode 100644 index 00000000..a9a37874 --- /dev/null +++ b/sys/imio/iki/oif/imhv1.h @@ -0,0 +1,75 @@ +# IMHV1.H -- Version 1 of the OIF binary file header (April 1988). + +define V1_MAGIC "imhdr" # file identification tag +define V1_PMAGIC "impix" # file identification tag +define V1_VERSION 1 # header version number + +define SZ_V1IMPIXFILE 79 # name of pixel storage file +define SZ_V1IMHDRFILE 79 # name of header storage file +define SZ_V1IMTITLE 79 # image title string +define SZ_V1IMHIST 511 # image history record +define SZ_V1BUNIT 9 # brightness units string +define SZ_V1CTYPE 9 # coord axes units string + +# The IMIO image header structure. + +# Parameters. +define LEN_V1IMHDR 513 # length of std header +define LEN_V1PIXHDR 183 # length of pixel file header +define V1U LEN_V1IMHDR # offset to user fields +define IM_V1USERAREA (P2C($1+V1U)) # user area (database) + +# Disk resident header. +define IM_V1MAGIC Memi[$1] # contains the string "imhdr" +define IM_V1HDRLEN Memi[$1+3] # length of image header +define IM_V1PIXTYPE Memi[$1+4] # datatype of the pixels +define IM_V1NDIM Memi[$1+5] # number of dimensions +define IM_V1LEN Meml[$1+$2+6-1] # length of the dimensions +define IM_V1PHYSLEN Meml[$1+$2+13-1] # physical length (as stored) +define IM_V1SSMTYPE Meml[$1+20] # type of subscript mapping +define IM_V1LUTOFF Meml[$1+21] # offset to subscript map luts +define IM_V1PIXOFF Meml[$1+22] # offset of the pixels +define IM_V1HGMOFF Meml[$1+23] # offset of hgm pixels +define IM_V1BLIST Meml[$1+24] # offset of bad pixel list +define IM_V1SZBLIST Meml[$1+25] # size of bad pixel list +define IM_V1NBPIX Meml[$1+26] # number of bad pixels +define IM_V1CTIME Meml[$1+27] # time of image creation +define IM_V1MTIME Meml[$1+28] # time of last modify +define IM_V1LIMTIME Meml[$1+29] # time min,max computed +define IM_V1MAX Memr[P2R($1+30)] # max pixel value +define IM_V1MIN Memr[P2R($1+31)] # min pixel value +define IM_V1HGM ($1+33) # histogram descriptor +define IM_V1CTRAN ($1+52) # coordinate transformations +define IM_V1PIXFILE Memc[P2C($1+103)] # name of pixel storage file +define IM_V1HDRFILE Memc[P2C($1+143)] # name of header storage file +define IM_V1TITLE Memc[P2C($1+183)] # image name string +define IM_V1HISTORY Memc[P2C($1+223)] # history comment string + +# The Histogram structure (field IM_HGM) +define LEN_HGMSTRUCT 20 +define HGM_TIME Meml[$1] # time when hgm was computed +define HGM_LEN Meml[$1+1] # number of bins in hgm +define HGM_NPIX Meml[$1+2] # npix used to compute hgm +define HGM_MIN Memr[P2R($1+3)] # min hgm value +define HGM_MAX Memr[P2R($1+4)] # max hgm value +define HGM_INTEGRAL Memr[P2R($1+5)] # integral of hgm +define HGM_MEAN Memr[P2R($1+6)] # mean value +define HGM_VARIANCE Memr[P2R($1+7)] # variance about mean +define HGM_SKEWNESS Memr[P2R($1+8)] # skewness of hgm +define HGM_MODE Memr[P2R($1+9)] # modal value of hgm +define HGM_LCUT Memr[P2R($1+10)] # low cutoff value +define HGM_HCUT Memr[P2R($1+11)] # high cutoff value +# next available field: ($1+12) + +# The Coordinate Transformation Structure (IM_CTRAN) +define LEN_CTSTRUCT 50 +define CT_VALID Memi[$1] # (y/n) is structure valid? +define CT_BSCALE Memr[P2R($1+1)] # pixval scale factor +define CT_BZERO Memr[P2R($1+2)] # pixval offset +define CT_CRVAL Memr[P2R($1+$2+3-1)] # value at pixel +define CT_CRPIX Memr[P2R($1+$2+10-1)] # index of pixel +define CT_CDELT Memr[P2R($1+$2+17-1)] # increment along axis +define CT_CROTA Memr[P2R($1+$2+24-1)] # rotation angle +define CT_BUNIT Memc[P2C($1+31)] # pixval ("brightness") units +define CT_CTYPE Memc[P2C($1+36)] # coord units string +# next available field: ($1+41) |