src/tiff/man/pal2rgb.1

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  24 .if n .po 0
  25 .TH PAL2RGB 1 "September 20, 2005" "libtiff"
  26 .SH NAME
  27 pal2rgb \- convert a palette color
  28 .SM TIFF
  29 image to a full color image
  30 .SH SYNOPSIS
  31 .B pal2rgb
  32 [
  33 .I options
  34 ]
  35 .I input.tif
  36 .I output.tif
  37 .SH DESCRIPTION
  38 .I Pal2rgb
  39 converts a palette color
  40 .SM TIFF
  41 image to a full color image by
  42 applying the colormap of the palette image to each sample
  43 to generate a full color
  44 .SM RGB
  45 image.
  46 .SH OPTIONS
  47 Options that affect the interpretation of input data are:
  48 .TP
  49 .B \-C
  50 This option overrides the default behavior of
  51 .I pal2rgb
  52 in determining whether or not
  53 colormap entries contain 16-bit or 8-bit values.
  54 By default the colormap is inspected and
  55 if no colormap entry greater than 255 is found,
  56 the colormap is assumed to have only 8-bit values; otherwise
  57 16-bit values (as required by the
  58 .SM TIFF
  59 specification) are assumed.
  60 The
  61 .B \-C
  62 option can be used to explicitly specify the number of
  63 bits for colormap entries:
  64 .B "\-C 8"
  65 for 8-bit values,
  66 .B "\-C 16"
  67 for 16-bit values.
  68 .PP
  69 Options that affect the output file format are:
  70 .TP
  71 .B \-p
  72 Explicitly select the planar configuration used in organizing
  73 data samples in the output image:
  74 .B "\-p contig"
  75 for samples packed contiguously, and
  76 .B "\-p separate"
  77 for samples stored separately.
  78 By default samples are packed.
  79 .TP
  80 .B \-c
  81 Use the specific compression algorithm to encoded image data
  82 in the output file:
  83 .B "\-c packbits"
  84 for Macintosh Packbits,
  85 .B "\-c lzw"
  86 for Lempel-Ziv & Welch,
  87 .B "\-c zip"
  88 for Deflate,
  89 .B "\-c none"
  90 for no compression.
  91 If no compression-related option is specified, the input
  92 file's compression algorithm is used.
  93 .TP
  94 .B \-r
  95 Explicitly specify the number of rows in each strip of the
  96 output file.
  97 If the
  98 .B \-r
  99 option is not specified, a number is selected such that each
 100 output strip has approximately 8 kilobytes of data in it.
 101 .SH BUGS
 102 Only 8-bit images are handled.
 103 .SH "SEE ALSO"
 104 .BR tiffinfo (1),
 105 .BR tiffcp (1),
 106 .BR tiffmedian (1),
 107 .BR libtiff (3)
 108 .PP
 109 Libtiff library home page:
 110 .BR http://www.remotesensing.org/libtiff/