BMP2GIF GIF2BMP DITHER
Convert gif <-> bmp, and dither 24-bit .bmp to 8 or 4 bits.
[19K bytes] C source files.
[66K bytes] Win32 executable files.
for three small command-line programs:
- bmp2gif -- Convert 8-bit MSWindows .bmp image to Compuserve .gif
- Options set a transparent color and add a comment to the .gif
- gif2bmp -- Convert Compuserve .gif image to MSWindows .bmp format
- Option gets a single image from a multi-image .gif
- dither -- Dither a 24-bit MSWindows .bmp image to 8 (or 4) bit .bmp
- Options set the colormap to dither to (popular ones supported)
Uses Floyd/Steinberg dither.
The C source is for Microsoft's compilers, but it is very mildly flavored.
The small changes needed for generic c-compiler compatablity are described
in each file.
The executables are for Windows 95 or NT.
I use these programs to convert a screen-grab to a .gif file (under Win95):
- Grab the screen or window (the Print Screen key)
- Open pbrush (the free paint program that comes with Windows) and
create a blank picture of the desired size.
- Use pbrush Edit/Copy to get the picture, and drag it around under the canvas
until it is framed nicely.
- Paint on the picture, if necessary, and save it as a .bmp image.
- In a dos shell, run bmp2gif on the image. Set a transparent color, if desired.
'Windows', 'NT', and '95' are trademarks of Microsoft Inc.
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