asciitopgm

 

---

 asciitopgm(1)                                       asciitopgm(1)
 
 
 
NAME
        asciitopgm  -  convert  ASCII  graphics  into  a  portable
        graymap
 
SYNOPSIS
        asciitopgm [-d divisor] height width [asciifile]
 
DESCRIPTION
        Reads ASCII data as input.  Produces  a  portable  graymap
        with  pixel  values  which  are  an  approximation  of the
        "brightness" of the ASCII characters,  assuming  black-on-
        white printing.  In other words, a capital M is very dark,
        a period is ver light, and a space is white.  Input  lines
        which  are  fewer  than width characters are automatically
        padded with spaces.
 
        The divisor argument is a floating-point number  by  which
        the  output  pixels are divided; the default value is 1.0.
        This can be used to adjust the brightness of the  graymap:
        for  example, if the image is too dim, reduce the divisor.
 
        In keeping with (I believe) Fortran  line-printer  conven­
        tions, input lines beginning with a + (plus) character are
        assumed to "overstrike"  the  previous  line,  allowing  a
        larger range of gray values.
 
        This  tool  contradicts the message in the pbmtoascii man­
        ual: "Note that there is no asciitopbm tool - this  trans­
        formation is one-way."
 
 BUGS
        The  table of ASCII-to-grey values is subject to interpre­
        tation, and, of course, depends on the  typeface  intended
        for the input.
 
SEE ALSO
        pbmtoascii(1), pgm(5)
 
AUTHOR
        Wilson H. Bent. Jr. (whb@usc.edu)
 
 
 
                          26 December 1994           asciitopgm(1)

---