# 
# 0README: LPM Sample Program
# 
#     [1998/01/29] OSHIRO Naoki.
# 
#     $Log:$
#

This directory contains very simple [OLD] LPM(log polar mapping)
programs (and some bugs ;-<, inverse image is effected some rotation).

1. Compile

  make [RET]

2. Usage

  a. Prepare PPM format image file.

  b. Generate LPM image.
        lpscl lpwidth lpheight infile > lpm-outfile[RET]

  c. Get Inverse LPM image.
        lpsclinv orgwidth orgheight lpm-outfile > inv-outfile[RET]

3. Sample

  There is sample image 'grid.ppm' in PPM format (126x123 size).

    % lpscl 30 30 grid.ppm > grid-lp.ppm[RET]
    % lpsclinv 126 123 grid-lp.ppm > grid-lpinv.ppm[RET]

4. Files

  0README   : This file.
  Makefile  : 
  lpscl.c   : LPM program.
  lpsclinv.c: Inverse LPM program.
  ppmutils.c: PPM format utilities.
  ppmutils.h: Header file PPM format utilities.
  grid.ppm  : Sample Image.

5. Notice

  ...

=========================================
Naoki OSHIRO: n-oshiro@tec.u-ryukyu.ac.jp
http://www.cc.u-ryukyu.ac.jp/~n-oshiro/