1PSBLACK(1NCARG) NCAR GRAPHICS PSBLACK(1NCARG)
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6 psblack - PostScript filter.
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9 psblack < input_PostScript_file > output_PostScript_file
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12 psblack is a filter which reads a PostScript file as input and writes a
13 PostScript file as output. In the output file the filter forces a
14 black background and scales the intensity values (values with R=G=B) so
15 that any intensity greater than or equal to .8 is mapped to white.
16 This filter works only on PostScript files produced by ctrans - the CGM
17 translator in the NCAR Graphics software.
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20 ctrans(1NCARG), pswhite(1NCARG)
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23 Copyright (C) 1987-2002
24 University Corporation for Atmospheric Research
25 The use of this Software is governed by a License Agreement.
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29NCAR May 1993 PSBLACK(1NCARG)