1Rletopnm User Manual(0)                                Rletopnm User Manual(0)
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NAME

6       rletopnm  -  convert  a Utah Raster Tools RLE image file to a PNM image
7       file.
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SYNOPSIS

11       rletopnm
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13       [--alphaout={alpha-filename,-}] [--headerdump|-h]
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15       [--verbose|-v]
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17       [rlefile|-]
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19       All options may be abbreviated to their minimum unique abbreviation and
20       options and arguments may be in any order.
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DESCRIPTION

24       This program is part of Netpbm(1).
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26       rletopnm  converts  Utah  Raster  Toolkit  RLE image files to PNM image
27       files.  rletopnm handles four types of  RLE  files:  Grayscale  (8  bit
28       data,  no  color map), Pseudocolor (8 bit data with a color map), True‐
29       color (24 bit data with color map), and Directcolor (24  bit  data,  no
30       color  map).   rletopnm generates a PPM file for all these cases except
31       for the Grayscale file, for which rletopnm generates a PGM file.
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33       rlefile is the RLE input file.  If it is absent or -, the  input  comes
34       from Standard Input.
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OPTIONS

38       --alphaout=alpha-filename
39              rletopnm   creates  a PGM (portable graymap) file containing the
40              transparency channel values in the input image.   If  the  input
41              image  doesn't  contain an transparency channel, the alpha-file‐
42              name file contains all zero (transparent)  transparency  values.
43              If  you  don't  specify --alphaout, rletopnm does not generate a
44              transparency file, and if the input  image  has  a  transparency
45              channel, rletopnm simply discards it.
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47              If  you  specify  -  as the filename, rletopnm writes the trans‐
48              parency output to Standard Output and discards the image.
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50              See pamcomp(1) for one way to use the transparency output file.
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53       --verbose
54              This option causes rletopnm  to operate  in  verbose  mode.   It
55              prints messages about what it's doing, including the contents of
56              the RLE image header, to Standard Error.
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59       --headerdump
60              This option causes rletopnm to operate in header dump mode.   It
61              prints  the  contents of the RLE image header to Standard Error,
62              but does not produce any other output.
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EXAMPLES

68       ·      While running in verbose mode, convert lenna.rle to  PPM  format
69              and store the resulting image as lenna.ppm:
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71                  rletopnm --verbose lenna.rle >lenna.ppm
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74       ·      Dump the header information of the RLE file called file.rle:
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76                  rletopnm --headerdump file.rle
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79       ·      Convert  RLE file dart.rle to PPM format as dart.ppm.  Store the
80              transparency channel of dart.rle as dartalpha.pgm  (if  dart.rle
81              doesn't  have  a transparency channel, store a fully transparent
82              transparency mask as dartalpha.pgm):
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84                  rletopnm --alphaout=dartalpha.pgm dart.rle >dart.ppm
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SEE ALSO

90       pnmtorle(1), pnmconvol(1), pnm(1), ppm(1), pgm(1),
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AUTHOR

94       Wes Barris Army High Performance  Computing  Research  Center  (AHPCRC)
95       Minnesota Supercomputer Center, Inc.
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97       Modifications by Eric Haines to support raw and plain formats.
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99       Modifications  by  Bryan Henderson to create transparency files and use
100       mnemonic options.
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DOCUMENT SOURCE

103       This manual page was generated by the Netpbm tool 'makeman'  from  HTML
104       source.  The master documentation is at
105
106              http://netpbm.sourceforge.net/doc/rletopnm.html
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108netpbm documentation             13 April 2000         Rletopnm User Manual(0)
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