NAME¶
gif2epsn - A program to dump images saved as GIF files on Epson type printers.
USAGE¶
gif2epsn [-q] [-d dither] [-t bw] [-m map] [-i] [-n] [-p printer] [-h]
gif-file
If no gif-file is given, Gif2Epsn will try to read a GIF file from stdin.
MEMORY REQUIRED¶
Screen.
OPTIONS¶
- [-q]
-
Quiet mode. Default off on MSDOS, on under UNIX. Controls printout of
running scan lines. Use -q- to invert.
- [-d dither]
-
Sets size of dithering matrix, where DitherSize can be 2,3 or 4 only (for
2x2, 3x3 and 4x4 dithering matrices). Default is 2. Note image will be
displayed in this mode only if the mapping option (see -m) selected this
mode.
- [-t bw]
-
Sets threshold level for B&W mapping in percent. This threshold level
is used in the different mappings as selected via -m. Default is 19%.
- [-m map]
-
Select method to map colors to B&W. Mapping can be:
- 0
-
Every none background color is considered foreground (white color but is
drawn as black by printer, unless -i is specified).
- 1
-
If 0.3 * RED 0.59 * GREEN 0.11 * YELLOW > BW the pixel is considered
white color.
- 2
-
Colors are mapped as in 1, and use dithering of size as defined using -d
option. BWthreshold is used here as scaler.
The default is option 0.
- [-i]
-
Invert the image, i.e. black -> white, white -> black.
- [-n]
-
Nicer image. Uses double-density feature of Epson printer. This takes more
time (and kills your ink cartridge faster...) but results are usually
better.
- [-p printer]
-
Under Unix, output goes to stdout by default; under DOS, the default is
LPT1:. With this switch you can specify the output target.
- [-h]
-
print one line of command line help, similar to Usage above.
NOTES¶
The output has an aspect ratio of 1, so a square image will be square in
hardcopy as well.
The widest image can be printed is 640 pixels, on 8 inch paper. You probably
will need to flip wider images, if height is less than that: `<a
href="gifflip.html">gifflip -r x29.gif | gif2epsn'. Wider images
will be clipped.
AUTHOR¶
Gershon Elber
Man page created by T.Gridel <tgridel@free.fr>, originally written by Eric
S. Raymond <esr@thyrsus.com>
