63 lines
2.5 KiB
Plaintext
63 lines
2.5 KiB
Plaintext
Gif2Epsn
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Program to dump images saved as GIF files on Epson type printers.
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Usage:
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------
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Usage: Gif2Epsn [-q] [-d DitherSize] [-t BWThreshold] [-m Mapping] [-i] [-n]
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[-p PrinterName] [-h] GifFile
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If no GifFile is given, Gif2Epsn will try to read stdin for GIF file.
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Memory required:
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----------------
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Screen.
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Options:
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--------
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1. [-q] : quite mode. Default off on MSDOS, on on unix. Controls printout
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of running scan lines. Use -q- to turn off.
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2. [-d DitherSize] : Sets size of dithering matrix, where DitherSize can be
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2,3 or 4 only (for 2x2, 3x3 and 4x4 dithering matrices). Default is 2.
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Note image will be displayed in this mode only if Mapping (see -m)
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selected this mode.
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3. [-t BWThreshold] : Sets threshold level for B&W mapping in percent.
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This threshold level is used in the different mappings as selected via -m.
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Default is 19%.
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4. [-m mapping] : Select method to map colors to B&W. Mapping can be:
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0 : Every none background color is considered foreground (white color but
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is drawn as black by printer, unless -i is specified).
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1 : 0.3 * RED + 0.59 * GREEN + 0.11 * YELLOW > BWThreshold is considered
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white color.
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2 : Colors are mapped as in 1, and use dithering of size as defined using
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-d option. BWthreshold is used here as scaler.
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Default is option 0.
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5. [-i] : Invert the image, i.e. black -> white, white -> black.
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6. [-n] : Nicer image. Uses double density feature of Epson printer, to make
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nicer result. This takes more time (and kill your ink cartridge
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faster...) but results are usually better.
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7. [-p PrinterName] : by default output is sent to LPT1:. If other device
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or disk file is required, they should be specified here. Note
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devices are NOT specifed with colon, so to use LPT2: instead:
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'-p lpt2' is required. Nothing is sent to stdout. If a disk file is
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created: '-p file1.eps' then it can be printed any time by the
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copy command: 'copy file1.eps prn:/b'. Note the /b for binary copy.
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8. [-h] : print one command line help, similar to Usage above.
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Notes:
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------
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The output has aspect ratio of 1, so square image, will be square in its
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hardcopy as well.
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The widest image can be printed is 640 pixels, on 8 inches paper. You
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probably will need to flip wider images, if height is less than that:
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'gifflip -r x29.gif | gif2epsn'. Wider images will be clipped.
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This utility dumps output to a file/printer directly. I guess it will have
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only a limited usage on unix system...
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