CVT2PIC(9.1) CVT2PIC(9.1)
NAME
cvt2pic, dumppic, ega2pic, face2pic, gif2pic, jpg2pic,
nasa2pic, pcx2pic, picopic, sgi2pic, targa2pic, tiff2pic,
utah2pic, xbm2pic - convert other formats to picture files
SYNOPSIS
fb/cvt2pic [ file ]
fb/dumppic input xsize ysize channels
fb/ega2pic [ file ]
fb/face2pic [ facefile ]
fb/gif2pic [ -m ] [ -s image ] [ file ]
fb/jpg2pic file
fb/nasa2pic file
fb/pcx2pic [ -r ] [ file ]
fb/picopic red green blue xsize ysize
fb/sgi2pic file
fb/targa2pic [ file ]
fb/tiff2pic file
fb/utah2pic file
fb/xbm2pic [ file ]
DESCRIPTION
Cvt2pic examines the given file (default standard input),
and tries to convert it to a picfile(9.6). It can recognize
TIFF, xbm, CompuServe GIF, Usenix facesaver, NASA, Utah rle,
SGI, JPEG, pcx, and picfile(9.6) images. The actual conver-
sion is done by calling out to one of the programs described
below. Although we have programs to decipher EGA, Targa,
and raw dump images, cvt2pic cannot recognize them.
Dumppic copies input to its standard output, adding a
TYPE=dump picture file header. Xsize and ysize are the
width and height of the picture. Channels is the value of
the output's CHAN= attribute. Face2pic reads facefile
(default standard input), a file in the Usenix face-saver
format, and converts it to picfile(9.6) format, writing the
result on standard output.
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Picopic creates a TYPE=pico image from the files red, green
and blue which must be raw (headerless) dumps in scan line
order of size xsize×ysize.
Ega2pic reads an EGA `enhanced color mode' image from input
and converts it to picfile(9.6) format, written on standard
output.
Gif2pic reads a CompuServe GIF format picture from input
(default standard input) and converts it to picfile(9.6)
format, written on standard output. By default, it converts
its input into a 3-channel rgb image. The -m flag causes it
to output a single channel image with a color map. GIF
files may contain multiple images; the -s flag allows selec-
tion of an image other than the first.
Jpg2pic reads a JPEG-coded file in the JFIF format from
input (or standard input) and converts it to picfile(9.6)
format, written on standard output. It generates TYPE=dump.
Nasa2pic reads a NASA satellite image and converts it to
picfile(9.6) format, written on standard output. It can
decipher only images with a single 8-bit channel. NASA
images typically have copious annotations in their headers;
these are mostly lost.
Sgi2pic converts SGI-format images to picfiles.
Targa2pic reads a Targa format file and converts it to
picfile(9.6) format, written on standard output. It cannot
convert compressed or color-mapped files.
Tiff2pic converts TIFF images to picfiles. It cannot handle
images with more than 8 bits per color component, nor images
of more than 8 channels. It uses a version of Sam Leffler's
TIFF library that purports to toe to TIFF 6.0.
Utah2pic reads a Utah rle (run-length encoded) image and
converts it to picfile(9.6) format, written on standard out-
put.
Pcx2pic reads a Paintbrush PCX format picture from input (or
standard input) and converts it to picfile(9.6) format,
written on standard output. TYPE=dump is generated by
default; the -r flag selects TYPE=runcode.
Xbm2pic reads an X window-system bitmap file from file (or
standard input) and converts it to picfile(9.6) format,
written on standard output.
SEE ALSO
picfile(9.6)
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CVT2PIC(9.1) CVT2PIC(9.1)
Pic2gif contains code that is Copyright © 1988, 1989 by
Patrick J. Naughton.
SOURCE
/sys/src/fb
BUGS
The world is awash with raster image file formats, many of
which spawn new versions from time to time, possibly making
these programs obsolete. On the other hand, we guarantee
unconditionally that picfile(9.6) will never change.
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