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A program to dump images saved as GIF files on Epson type printers.
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.
- 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:
Every none background color is considered foreground (white color but
is drawn as black by printer, unless -i is specified).
If 0.3 * RED + 0.59 * GREEN + 0.11 * YELLOW > BW the pixel is
considered white color.
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.
- Invert the image, i.e. black -> white, white -> black.
- 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
- print one line of command line help, similar to Usage above.
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:
`gifflip -r x29.gif | gif2epsn'. Wider
images will be clipped.
Eric S. Raymond <firstname.lastname@example.org>