Ubuntu Feisty 7.04 manual page repository

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Provided by: netpbm_10.0-11_i386



        asciitopgm - convert ASCII graphics into a portable graymap


        asciitopgm [-d divisor] height width [asciifile]


        Reads ASCII data as input.  Produces a portable graymap with pixel val‐
        ues which are an approximation of the "brightness" of the ASCII charac‐
        ters, 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
        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 conventions, 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 manual: "Note that
        there is no asciitopbm tool - this transformation is one-way."


        The table of ASCII-to-grey values is subject to interpretation, and, of
        course, depends on the typeface intended for the input.


        Wilson H. Bent. Jr. (whb@usc.edu)


What does Ubuntu mean?
Ubuntu is an African word meaning 'Humanity to others', or 'I am what I am because of who we all are'. The Ubuntu distribution brings the spirit of Ubuntu to the software world.