READ98721(1) 1 (Jun 11, 1987) READ98721(1)
NAME
read98721 - read an image from the HP-98721 frame buffer
SYNOPSIS
read98721 [ -b red green blue ] [ -d display ] [ -m ] [ -o
outfile ] [ -p xpos ypos ] [ -s xsize ysize ] [ -x driver ]
[ -O ] [ comments ]
DESCRIPTION
This program reads an image from a HP-98721 frame buffer and
writes it to an RLE(5) file. The file will contain three
channels of 8 bits each for red, green, and blue
respectively. If an output file name is not specified the
image will be written to the standard output. The default
display device and device driver are respectively
/dev/crt98721 and hp98721.
OPTIONS
-b red green blue
Specifies red, green and blue pixel values for the
background.
-d display
Gives the name of the display device from which the
image is to be read.
-m Saves the device color maps. By default, no color maps
are saved.
-o outfile
Writes the image to outfile.
-p xpos ypos
Specifies the lower left corner of the portion of the
screen to be saved. The origin is the lower left corner
of the display, which is taken as the default starting
position if this option is not specified.
-s xsize ysize
Specifies the size of the image to be read.
-x driver
Gives the name of the device driver to be used to
communicate with the display device.
-O Specifies that the image has no background.
The remaining arguments are taken to be comment strings of
the form name=value , and are inserted in the header of the
RLE(5) output file.
Page 1 (printed 12/1/98)
READ98721(1) 1 (Jun 11, 1987) READ98721(1)
SEE ALSO
getren(1), urt(1), RLE(5).
AUTHOR
Filippo Tampieri, Program of Computer Graphics, Cornell
University.
Page 2 (printed 12/1/98)
