gif2bgi(1)
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 thresh- old 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).
- 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>