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   The r.rescale.eq program rescales the range of category values
   appearing in a raster map layer with equalized histogram. A new raster
   map layer, and an appropriate category file and color table based upon
   the original raster map layer, are generated with category labels that
   reflect the original category values that produced each category. This
   command is useful for producing representations with a reduced number
   of categories from a raster map layer with a large range of category
   values (e.g., elevation). Rescaled map layers are appropriate for use
   in such GRASS programs as [1]r.stats, [2]r.report, and [3]r.coin.

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   To rescale an elevation raster map layer with category values ranging
   from 1090 meters to 1800 meters into the range 0-255, the following
   command line could be used:

          r.rescale.eq input=elevation from=1090,1800 output=elevation.255
          to=0,255

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   Category values that fall beyond the input range will become NULL. This
   allows the user to select a subset of the full category value range for
   rescaling if desired. This also means that the user should know the
   category value range for the input raster map layer. The user can
   request the r.rescale.eq program to determine this range, or can obtain
   it using the [4]r.describe or [5]r.info command. If the category value
   range is determined using r.rescale.eq, the input raster map layer is
   examined, and the minimum and maximum non-NULL category values are
   selected as the input range.

СÐ. ТÐÐÐÐ

   [6]r.coin, [7]r.describe, [8]r.info, [9]r.mapcalc, [10]r.reclass,
   [11]r.report, [12]r.resample, [13]r.stats

ÐÐТÐÐ

   Michael Shapiro, U.S.Army Construction Engineering Research Laboratory

   Last changed: $Date: 2003-05-06 10:35:18 -0500 (ÐÑ, 06 май 2003) $

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References

   1. file://localhost/root/tmp/2/fin/r.stats.html
   2. file://localhost/root/tmp/2/fin/r.report.html
   3. file://localhost/root/tmp/2/fin/r.coin.html
   4. file://localhost/root/tmp/2/fin/r.describe.html
   5. file://localhost/root/tmp/2/fin/r.info.html
   6. file://localhost/root/tmp/2/fin/r.coin.html
   7. file://localhost/root/tmp/2/fin/r.describe.html
   8. file://localhost/root/tmp/2/fin/r.info.html
   9. file://localhost/root/tmp/2/fin/r.mapcalc.html
  10. file://localhost/root/tmp/2/fin/r.reclass.html
  11. file://localhost/root/tmp/2/fin/r.report.html
  12. file://localhost/root/tmp/2/fin/r.resample.html
  13. file://localhost/root/tmp/2/fin/r.stats.html