j2k_to_image(1)

1j2k_to_image(1)             converts jpeg2000 files            j2k_to_image(1)
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NAME

6       j2k_to_image  -  This program reads in a jpeg2000 image and converts it
7       to another image type. It is part of the OpenJPEG library.
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9       Valid input image extensions are .j2k, .jp2, .j2c, .jpt
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11       Valid output image extensions are .bmp, .pgm, .pgx, .png,  .pnm,  .ppm,
12       .raw, .tga, .tif . For PNG resp. TIF it needs libpng resp. libtiff .
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SYNOPSIS

15       j2k_to_image -i infile.j2k -o outfile.png
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17       j2k_to_image -ImgDir images/ -OutFor bmp
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19       j2k_to_image -h Print help message and exit
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21       See JPWL OPTIONS for special options
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OPTIONS

24       -i name
25              (jpeg2000 input file name)
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27       -l n   n  is the maximum number of quality layers to decode. See LAYERS
28              below)
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30       -o name
31              (output file name with extension)
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33       -r n   (n is the highest resolution level to be discarded.  See  REDUC‐
34              TION below)
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36       -x name
37              (use name as index file and fill it)
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39       -ImgDir directory_name
40              (directory containing input files)
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42       -OutFor ext
43              (extension for output files)
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JPWL OPTIONS

46       Options usable only if the library has been compiled with -DUSE_JPWL
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48       -W  c[=Nc]  (Nc is the number of expected components in the codestream;
49       default:3)
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51       -W t[=Nt] (Nt is  the  maximum  number  of  tiles  in  the  codestream;
52       default:8192)
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54       -W c[=Nc], t[=Nt] (same as above)
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REDUCTION

57       Set the number of highest resolution levels to be discarded.  The image
58       resolution is effectively divided by 2 to the power of  the  number  of
59       discarded  levels.  The  reduce factor is limited by the smallest total
60       number of decomposition levels among tiles.
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TILES

63       Set the maximum number of quality layers to decode. If there  are  less
64       quality  layers  than  the specified number, all the quality layers are
65       decoded.
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AUTHORS

68       Copyright (c) 2002-2007, Communications and Remote Sensing  Laboratory,
69       Universite catholique de Louvain (UCL), Belgium
70       Copyright (c) 2002-2007, Professor Benoit Macq
71       Copyright (c) 2001-2003, David Janssens
72       Copyright (c) 2002-2003, Yannick Verschueren
73       Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
74       Copyright (c) 2005, Herve Drolon, FreeImage Team
75       Copyright (c) 2006-2007, Parvatha Elangovan
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