spectro/synthcal
    Summary
    Create synthetic calibration file. The default is a linear
    calibration
    file.
    Usage
    synthcal [-options] basename
       -r
        res          Set
        the calibration resolution (default 256)
         -t
        N           
        i =
        input, o = output, d = display (default)
         -d col_comb     choose colorant
        combination
        from the following:
                        
0:
Print
        grey
                        
1:
Video
        grey
                        
2:
Print
        RGB
                        
3:
Video
        RGB
                
        4:
        CMYK
                
        5:
        CMY
                        
6:
CMYK
        + Light CM
                        
7:
CMYK
        + Light CMK
                        
8:
CMYK
        + Red + Blue
                        
9:
CMYK
        + Orange + Green
                        
10:
CMYK
        + Light CMK + Light Light K
                        
11:
CMYK
        + Orange + Green + Light CM
                        
12:
CMYK
        + Light CM + Medium CM
         -D colorant     Add or delete colorant
        from
        combination:
                        
(Use
-??
        to list known colorants)
       -o
        o1,o2,o3,    Set non-linear curve offset
        (default 0.0)
     -s
        s1,s2,s3,    Set non-linear curve scale
        (default 1.0)
         -p p1,p2,p3,    Set non-linear curve powers
        (default 1.0)
         outfile        
        Base name
        for output .cal file
    Comments
    
    This is the tool creates a calibration (.cal)
    file that has a linear table
    for each channel. This is useful in setting up a display for
    evaluation, disabling printer calibration, testing, or to recover a
    display that has a strange set of
    Video LUTs loaded.
    
    The -r
    parameter
    selects the table resolution. The default is 256.
    
    The -t
    option
    selects the type of device the calibration file is intended for.
    Default is display.
    
    The -d
    option
    selects the device colorspace. The default for input and display is
    Video RGB, while the default for output
        is CMYK.
      
     The -D parameter modifies the colorspace
    set
    by -d by allowing
    individual
    colorants to be added or subtracted from the colorspace.
    
    Optionally it can be used to create a non-linear calibration file,
    useful for diagnostics. Each of the device channel curves can be
    given a gamma (power curve) shape, scaled to a maximum other than
    1.0, and offset from a value other than 0.0.