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Text File  |  1990-09-08  |  353 b   |  11 lines
  1. * edge filter
  2. don 2           * use  display contrast stretching
  3. read trui       * read image
  4. lmin A,B,15     * local minimum
  5. lmax A,C,15     * local maximum
  6. sub A,B         * difference with original
  7. sub C,A         * idem for maximum
  8. mini B,A        * take minimum of these
  9. read trui,B     * and show original
  10. don             * back to normal display
  11.