01-05-2008
If you are using Vista, Microsoft SFU is now known as SUA (Subsystem for UNIX-based Applications) and is only available for Vista Ultimate or Vista Enterprise.
Another "Cygwin-like" environment you may like to try is the Dave Korn/Glen Fowler/etc. UWIN
package which is available at:
research.att.com/sw/tools/uwin
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LEARN ABOUT DEBIAN
vinvert
vinvert(1Vi) vinvert(1Vi)
NAME
vinvert - invert image pixel values
SYNOPSIS
vinvert [option ...] [infile] [outfile]
DESCRIPTION
vinvert inverts each input image to produce a corresponding output image. The operation is suitable for swapping black and white in a grey-
scale image.
Each output pixel is computed from the corresponding input pixel by
out-pixel = M - in-pixel
where M is the maximum value allowed by the pixel representation, or 1 in the case of float or double pixels. Input pixel values must lie
in the range [0,M].
Each output image has the same number of bands, rows and columns, and the same pixel representation, as the corresponding input image.
COMMAND LINE OPTIONS
vinvert accepts the following options:
-help Prints a message describing options.
-in infile Specifies a Vista data file containing the input images.
-out outfile Specifies where to write the output images as a Vista data file.
Input and output files can be specified on the command line or allowed to default to the standard input and output streams.
SEE ALSO
vnegate(1Vi), vop(1Vi), VImage(3Vi), Vista(7Vi)
AUTHOR
Art Pope <pope@cs.ubc.ca>
Vista Version 1.12 24 April 1993 vinvert(1Vi)