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- NAME
-
- limbo - fast 2D/3D fractal image compression
-
- AMIGA SPECIFICATIONS
-
- See the 'limbo.readme' for general information.
-
- The Limbo program is currently only on a research or
- experimental state!
-
- A test run on the 'lenna' image (512 times 480) with a 68030
- /68881:
-
- o Encoding time : 276 [sec]
-
- o Decoding time : about 20 [sec]
-
- o Memory usage : over 3 [Mb]!
-
- o PSNR : 32.10 [dB]
-
- o Compression ratio: 8.92:1 = 11.21 % = 0.896 [bpp]
-
- The Limbo encoder is very demanding for the hardware in
- terms of computing power and graphics capabilities.
- Personally I do not use the program on my 68030/40 [Mhz]
- since its to slow, but perhaps other Amiga users with more
- powerful CPU'S and better graphics cards may find it usable
- (the program was first designed to run on a Silicon Graphics
- Indy or a Sun Sparc Station!)
-
- Currently I've only supplied the binaries for the 2D version
- of the encoder, since the 3D version is even more demanding
- than the 2D encoder.
-
- NOTE: the directory structure specified in the limbo.readme
- file MUST be present --- otherwise the Limbo encoder will
- fail. If you find the directory structure annoying change it
- by redefining the directories specified in 'defines.h' (i.e.
- the ORGGFX,FCCODE, and CMPGFX defines).
-
- The limbo encoder uses the PGM (8 BPP, grey scale) or PPM
- (24-BPP, color) as image input/output formats. To encode an
- IFF image it has to be exported to PGM or PPM first. I've
- supplied the 'PPMPrev' code from the AmiNet (PPM.LZH)
- written by Albert-Jan Brouwer. Furthermore I've supplied the
- small dirty hack 'pgm2ppm' to convert PGM to PPM images.
-
- The viewing of images is done by the 'xv.script', instead of
- the xviewer program!
-
- THANKS
-
- Thanks to Albert-Jan Brouwer for his PPMPrev and a very big
- thanks to Chris Coulson for checking out the code !!!
-
-
- .carsten
-
-