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<a href="0420-0422.html">Previous</A> | <a href="../ewtoc.html">Table of Contents</A> | <a href="0426-0428.html">Next</A></CENTER></P>
<A NAME="PAGENUM-423"><P>Page 423</P></A>
<P><B>
SEE ALSO
</B></P>
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<PRE>
picttoppm(1), ppm(5), mcvert(1)
</PRE>
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<P><B>
AUTHOR
</B>
</P>
<P>Copyright" 1990 by Ken Yap
(ken@cs.rocester.edu).
</P>
<P>15 April 1990
</P>
<H3><A NAME="ch01_ 323">
ppmtopj
</A></H3>
<P>ppmtopj—Convert a portable pixmap to an HP PaintJet file
</P>
<P><B>
SYNOPSIS
</B>
</P>
<!-- CODE //-->
<PRE>
ppmtopj [-gamma val][-xpos val][-ypos val][-back dark|lite][-rle][-center]
[-render none|snap|bw|dither|diffuse|monodither|monodiffuse|clusterdither|
monoclusterdither][ppmfile]
</PRE>
<!-- END CODE //-->
<P><B>
DESCRIPTION
</B>
</P>
<P>ppmtopj reads a portable pixmap as input and converts it into a format suitable to be printed by an HP PaintJet printer.
</P>
<P>For best results, the input file should be in 8-color RGB form; that is, it should have only the eight binary combinations
of full-on and full-off primaries. You could get this by sending the input file through
ppmquant -map with a mapfile such as
</P>
<!-- CODE SNIP //-->
<PRE>
P3
8 1
255
0 0 0 2550 0 02550 0 0 255
255 255 0 255 0 255 0 255 255 255 255 255
</PRE>
<!-- END CODE SNIP //-->
<P>Or else you could use ppmdither -red 2 -green 2 -blue
2.
</P>
<P><B>
OPTIONS
</B>
</P>
<TABLE>
<TR><TD>
-rle
</TD><TD>R
un-length encode the image. (This can result in larger images.)
</TD></TR><TR><TD>
-back
</TD><TD>
Enhance the foreground by indicating if the background is light or dark compared to the foreground.
</TD></TR><TR><TD>
-render alg
</TD><TD>
Use an internal rendering algorithm (default
dither).
</TD></TR><TR><TD>
-gamma int
</TD><TD>
Gamma correct the image using the
integer parameter as a gamma (default 0).
</TD></TR><TR><TD>
-center
</TD><TD>
Center the image to an 8.5 by 11 page.
</TD></TR><TR><TD>
-xpos pos
</TD><TD>
Move by pos pixels in the x direction.
</TD></TR><TR><TD>
-ypos pos
</TD><TD>
Move by pos pixels in the y direction.
</TD></TR></TABLE>
<P><B>
REFERENCES
</B>
</P>
<P>HP PaintJet XL Color Graphics Printer User's Guide
</P>
<P><B>
SEE ALSO
</B>
</P>
<!-- CODE SNIP //-->
<PRE>
pnmdepth(1), ppmquant(1), ppmdither(1), ppm(5)
</PRE>
<!-- END CODE SNIP //-->
<P><B>
BUGS
</B>
</P>
<P>Most of the options have not been tested because of the price of the paper.
</P>
<P><B>
AUTHOR
</B>
</P>
<P>Copyright" 1991 by Christos Zoulas.
</P>
<P>13 July 1991
</P>
<A NAME="PAGENUM-424"><P>Page 424</P></A>
<H3><A NAME="ch01_ 324">
ppmtopjxl
</A></H3>
<P>ppmtopjxl—Convert a portable pixmap into an HP PaintJet XL PCL file
</P>
<P><B>
SYNOPSIS
</B>
</P>
<!-- CODE //-->
<PRE>
ppmtopjxl [-nopack] [-gamma <n> ] [-presentation] [-dark] [-diffuse]
[-cluster] [-dither] [-xshift <s> ] [-yshift <s> ] [-xshift <s> ] [-yshift <s> ]
[-xsize|-width|-xscale <s> ] [-ysize|-height|-yscale <s> ] [ppmfile]
</PRE>
<!-- END CODE //-->
<P><B>
DESCRIPTION
</B>
</P>
<P>ppmtopjxl reads a portable pixmap as input and produces a PCL file suitable for printing on an HP PaintJet XL printer
as output.
</P>
<P>The generated file is not suitable for printing on a normal PrintJet printer. The
_nopack option generates a file that does not use the normal TIFF 4.0 compression method. This file might be printable on a normal PaintJet printer (not an XL).
</P>
<P>The _gamma option sets the gamma correction for the image. The useful range for the PaintJet XL is approximately 0.6<BR>
to 1.5.
</P>
<P>The rendering algorithm used for images can be altered with the
-dither, -cluster, and -diffuse options. These
options select ordered dithering, clustered ordered dithering, or error diffusion, respectively. The
_dark option can be used to enhance images with a dark background when they are reduced in size. The
_presentation option turns on presentation mode, in which two passes are made over the paper to increase ink density. This should be used only for images
where quality is critical.
</P>
<P>The image can be resized by setting the _xsize and
_ysize options. The parameter to either of these options is interpreted
as the number of dots to set the width or height to, but an optional dimension of
pt (points), dp (decipoints), in (inches), or cm (centimeters) may be appended. If only one dimension is specified, the other will be scaled appropriately.
</P>
<P>The options _width and _height are synonyms of _xsize
and _ysize.
</P>
<P>The _xscale and _yscale options can alternatively be used to scale the image by a simple factor.
</P>
<P>The image can be shifted on the page by using the
_xshift and _yshift options. These move the image the
specified dimensions right and down.
</P>
<P><B>
SEE ALSO
</B>
</P>
<!-- CODE SNIP //-->
<PRE>
ppm(5)
</PRE>
<!-- END CODE SNIP //-->
<P><B>
AUTHOR
</B>
</P>
<P>Angus Duggan
</P>
<P>14 March 1991
</P>
<H3><A NAME="ch01_ 325">
ppmtopuzz
</A></H3>
<P>ppmtopuzz—Convert a portable pixmap into an X11 puzzle file
</P>
<P><B>
SYNOPSIS
</B>
</P>
<!-- CODE SNIP //-->
<PRE>
ppmtopuzz [ppmfile]
</PRE>
<!-- END CODE SNIP //-->
<P><B>
DESCRIPTION
</B>
</P>
<P>ppmtopuzz reads a portable pixmap as input and produces an X11 puzzle file as output. A puzzle file is for use with the
puzzle program included with the X11 distribution;
puzzle's -picture flag lets you specify an image file.
</P>
<A NAME="PAGENUM-425"><P>Page 425</P></A>
<P><B>
SEE ALSO
</B></P>
<!-- CODE SNIP //-->
<PRE>
ppm(5), puzzle(1)
</PRE>
<!-- END CODE SNIP //-->
<P><B>
AUTHOR
</B>
</P>
<P>Copyright" 1991 by Jef Poskanzer.
</P>
<P>22 August 1990
</P>
<H3><A NAME="ch01_ 326">
ppmtorgb3
</A></H3>
<P>ppmtorgb3—Separate a portable pixmap into three portable graymaps
</P>
<P><B>
SYNOPSIS
</B>
</P>
<!-- CODE SNIP //-->
<PRE>
ppmtorgb3 [ppmfile]
</PRE>
<!-- END CODE SNIP //-->
<P><B>
DESCRIPTION
</B>
</P>
<P>ppmtorgb3 reads a portable pixmap as input and writes three portable graymaps as output, one each for red, green, and blue.
</P>
<P>The output filenames are constructed by taking the input filename, stripping off any extension, and appending
.red, .grn, and .blu. For example, separating
lenna.ppm would result in lenna.red, lenna.grn, and
lenna.blu. If the input comes from stdin, the names are
noname.red, noname.grn, and noname.blu.
</P>
<P><B>
SEE ALSO
</B>
</P>
<!-- CODE SNIP //-->
<PRE>
rgb3toppm(1), ppmtopgm(1), pgmtoppm(1), ppm(5),
pgm(5)
</PRE>
<!-- END CODE SNIP //-->
<P><B>
AUTHOR
</B>
</P>
<P>Copyright" 1991 by Jef Poskanzer.
</P>
<P>10 January 1991
</P>
<H3><A NAME="ch01_ 327">
ppmtosixel
</A></H3>
<P>ppmtosixel—Convert a portable pixmap into DEC sixel format
</P>
<P><B>
SYNOPSIS
</B>
</P>
<!-- CODE SNIP //-->
<PRE>
ppmtosixel [-raw][-margin][ppmfile]
</PRE>
<!-- END CODE SNIP //-->
<P><B>
DESCRIPTION
</B>
</P>
<P>ppmtosixel reads a portable pixmap as input and produces sixel commands (SIX) as output. The output is formatted for
color printing, for example, for a DEC LJ250 color inkjet printer.
</P>
<P>If RGB values from the PPM file do not have
maxval=100, the RGB values are rescaled. A printer control header and a
color assignment table begin the SIX file. Image data is written in a compressed format by default. A printer control footer
ends the image file.
</P>
<P><B>
OPTIONS
</B>
</P>
<TABLE>
<TR><TD>
-raw
</TD><TD>
If specified, each pixel will be explicitly described in the image file. If
-raw is not specified, output will default to compressed format in which identical adjacent pixels are replaced by
repeat pixel commands. A raw file is often an order of magnitude larger than a compressed file and prints much slower.
</TD></TR><TR><TD>
-margin
</TD><TD>
If -margin is not specified, the image will start at the left margin (of the window, paper, or whatever). If
-margin is specified, a 1.5 inch left margin will offset the image.
</TD></TR></TABLE>
<P><CENTER>
<a href="0420-0422.html">Previous</A> | <a href="../ewtoc.html">Table of Contents</A> | <a href="0426-0428.html">Next</A></CENTER></P>
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