Level 2 Help for RESLOCVO

INP

One picture file generated by the Viking Orbiter logging program (VOLOG). 
This frame should be an unprocessed byte image (i.e. No stretching,
filtering or geom allowed).  This can be followed by a reseau location
record containing the nominal reseau locations; 
 .VARIABLE OUT
A reseau record containing the (LINE,SAMPLE) coordinates for each
reseau mark. This file contains just 1 line of 824 bytes. The output has a
VICAR label. 


GEOPAR

Optional output file to contain GEOMA parameters for removing the geometric
distortions.


CAMERA

Specifies the camera serial number for the input picture.  This
parameter may be used to override the camera information in the Viking
Orbiter label.  The valid camera serial numbers are:
	7=VO-1A		8=VO-2A
	4=VO-1B		6=VO-2B


DBUG

Causes diagnostic messages to be printed.


PRINT

Causes a listing of the reseau locations to be generated.


NOIN

The program will normally attempt to calculate the reseau locations to
sub-pixel accuracy.  This keyword suppresses interpolation of the
correlation maximum.


NVER

 NVER is an integer specifying the height of the search area. (must be
odd) (Default =19) 


NHOR

 NHOR  is an integer specifying the width of the search area. (must be
odd) (Default = 19) 


NLW

 NLW is an integer specifying the height of the correlation area. (must be
odd) (Default = 5) 


NSW

 NSW is an integer specifying the width of the correlation area. (must be
odd) (Default = 5) 


SIGMA

 SIGMA is a real number specifying the standard deviation constant used in
the reseau shape function. (Default = 1.0) 


FRAME

 FRAME  is an integer specifying the frame number for the input picture. 
This parameter will override the frame number in the Viking Orbiter label.


CTHRESH

 A THRESHOLD ON CORRELATION VALUES.
 Default is CTHRESH=0.5.


FIT

 VALID = 1:8
 Default is FIT = 8.
 Specitfies the type of fit to be performed.  Meanings are :

         IFIT  ROTATE SCALE  OFFSET
          1      0      0      1
          2      0      1      0
          3      0      1      1
          4      1      0      0
          5      1      0      1
          6      1      1      0
          7      1      1      1


TOLER

Default is TOLER = 4.0.  Maximum allowed error in calculated location
relative to  the nominal location.