GIFDOT v2.0 (c) 1988-89 Lawrence & Marvin Gozum, MD

GIFDOT20.ZIP (.ARC) MUST INCLUDE THE FOLLOWING FILES

README 1ST this document
GIFDOT EXE main program
BRUN41 EXE required QB runtime module
GIFDOT DOC user manual
REGISTER DOC registration form
VGACAP COM TSR 256-color screen capture for MCGA/VGA 320x200x256 and
SVGA (640x480x256 or 800x600x256)
VGAFIX COM TSR for Orchid Designer VGA (load before using VGACAP)
AHEAD480 CFG 640x480x16 Ahead EGA
C&T800 CFG 800x600x16 Chips & Technologies based cards
EGAWONDR CFG 800x560x16 ATI EGA Wonder,Platinum,Tatung,...
EVGA480 CFG 640x480x16 Everex
EVGA800 CFG 800x600x16 Everex
GENOA480 CFG 640x480x16 Genoa
GIFDOT CFG 800x600x16 default (see TSENG800.CFG)
PARADISE CFG 800x600x16 AST,Compaq,Paradise,old Dell,...
TECMR800 CFG 800x600x16 Tecmar
TRIDENT CFG 800x600x16 Logix,Maxon,...
TSENG800 CFG 800x600x16 Genoa,Orchid,Sigma,STB,Willow,...
VGAWONDR CFG 800x600x16 ATI VGA Wonder (and clones)
VIDEO7 CFG 800x600x16 Vega,Video7 (FW,VRAM),new Dell, ...

GIFDOT converts any of the following listed below to a dithered
(modified, error-distributed Floyd-Steinberg matrix with "Stucki-like"
values) Black & White image and prints it to most Epson and IBM compatible
dot matrix printers (or laser printers with Epson FX-80 emulation).

1) ANY colored GIF picture (2KBx2KBx256);
2) ANY 256-color PCX (version 5) picture (to 2KBx2KBx256);
3) ANY VIEWABLE VGA/MCGA 320x200x256 picture captured with VGACAP;
4) ANY VIEWABLE SVGA 640x480x256 or 800x600x256 picture captured and
converted to TEMP files used by VGACAD (v1.6 and up);
5) ANY 16-color picture converted to any size with EGA2VGA;
6) ANY 256-color picture converted to any size with SQZGIF;
7) Colorized/converted MacPaint (READMACs) with MAC2GIF.

NO VIDEO CARD IS NECESSARY. For interactive image processing, GIFDOT
supports CGA (640x200), Herc (720x348), EGA (640x350), MCGA/VGA (640x480),
EEGA or SVGA (to 800x600). You can adjust the brightness and contrast levels
through Grey Scale Skewing, Histogram Contrast Stretching and several
Histogram-equalization algorithms (NEW!) - without a graphics card. You can
directly integrate output in your desktop publishing documents since
GIFDOT supports variable "tabbing" of printed output (with Tiny setting, up
to 8 images can be placed on an 8"x11" document.

GIFDOT (v2.0 and up) supports virtual screens for SVGA pictures up to
2KBx2KBx256 (EMM support will follow shortly)! All the detail in SVGA
pictures will be accurately reproduced in your dithered images (e.g.,
fine text along with the continuous grey image). By using the VDISK
path you can redirect the creation of virtual screen in RAM (i.e., RAM
disk) for FAST processing or another drive for dual floppy users.

Update 2.0 * Full utililization of SVGA images (to 2KBx2KBx256)
* PCX v5.0 support (to 2KBx2KBx256)
* Histogram-equalization; new image processing function
for global grey pixel redistribution

- Flat (linear)
- Sine (Pseudo-Gaussian)
- BiModal (Dual, Overlapping Sine Curves)
- TriModal (Triple, Overlapping Sine Curves)
- Lite Skew (linear w/ positive skew)
- Dark Skew (linear w/ negative skew)

* New error-distributed algorithm using modified Floyd-
Steinberg matrix with "Stucki" values
* User-definable dither density
* User-definable EEGA/SVGA video modes
* Enhanced Brightness and Contrast-Stretching algorithm;
precise grey scale adjustment; reorganized around
Histogram Analysis for better feedback and analysis
* Extended grey scale parsing algorithm - 256 greys mapped
instead of 64 for enhanced detail
* Fast 256-color palette read/write algorithm
* Bugfix: Selection of files with "**MORE**" corrected