term% cat index.txt 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 conversion 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 for‐
mat, and converts it to picfile(9.6) format, writing the result on
standard output.
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
xsizeÃysize.
Ega2pic reads an EGA ‘enhanced color mode' image from input and con‐
verts it to picfile(9.6) format, written on standard output.
Gif2pic reads a CompuServe GIF format picture from input (default stan‐
dard 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 stan‐
dard 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 pur‐
ports 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 output.
Pcx2pic reads a Paintbrush PCX format picture from input (or standard
input) and converts it to picfile(9.6) format, written on standard out‐
put. TYPE=dump is generated by default; the -r flag selects TYPE=run‐
code.
Xbm2pic reads an X window-system bitmap file from file (or standard in‐
put) and converts it to picfile(9.6) format, written on standard out‐
put.
SEE ALSO
picfile(9.6)
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 obso‐
lete. On the other hand, we guarantee unconditionally that pic‐
file(9.6) will never change.
CVT2PIC(9.1)