1TIFFCHECK(8C)                                                    TIFFCHECK(8C)
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NAME

6       tiffcheck - check TIFF for HylaFAX conversion requirements
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SYNOPSIS

9       /usr/sbin/tiffcheck [ options ] file.tif
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DESCRIPTION

12       tiffcheck  takes TIFF input and writes a multi-line text message to the
13       standard output describing any work needed to prepare  the  images  for
14       facsimile  transmission.   tiffcheck is usually invoked by tiff2fax(8C)
15       script that is used by the HylaFAX scheduler to prepare TIFF  documents
16       submitted for transmission.
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18       The  first  line  of  output  is a series of ``+''-separated words that
19       indicate if the input file should be:
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21       ·  rejected (``REJECT''),
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23       ·  reformatted with a different data-encoding scheme (``REFORMAT''),
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25       ·  scaled to different page dimensions (``RESIZE''),
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27       ·  reimaged in a different vertical resolution (``REVRES''), or
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29       ·  reimaged  for  other  reasons  such  as  conversion  from  color  to
30          black&white (``REIMAGE'').
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32       The  conversion  requirements  string  will always have keywords in the
33       above order; e.g. ``RESIZE+REVRES'' if  the  input  file  needs  to  be
34       scaled  and converted to a different resolution.  Information following
35       the first line is descriptive text that explains the reason(s) for  the
36       file  conversion(s);  this  text  is  suitable  for  return to a client
37       (should document conversion fail or not be attempted).  The descriptive
38       text  is  ordered identically to the keywords in the conversion string;
39       this makes it possible to match up conversion requirements to reasons.
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OPTIONS

42       The following operations are recognized:
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44       -1        Set output to be Group 3 1D-encoded.
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46       -2        Set output to be Group 3 2D-encoded.
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48       -3        Set output to be Group 4 MMR-encoded.
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50       -w width  Set the output page width, in pixels.  By default, pages  are
51                 1728 pixels wide.
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53       -l length Set the output page length in millimeters.  By default, pages
54                 are 297 millimeters long.
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56       -r vres   Set the vertical resolution, in lines/inch, at which to image
57                 the TIFF.
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EXAMPLES

60       The following color image needs to be converted to black&white, resized
61       to the output page dimensions, and  reformatted  to  use  Group  3  1D-
62       encoded data.
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64              hyla% /usr/sbin/tiffcheck jello.tif
65              REFORMAT+RESIZE+REIMAGE
66              Document is not a bilevel image (bits/sample 8).
67              Document requires reformatting, not in Group 3 format.
68              Document requires resizing to adjust page width (convert to 1728, document is 256).
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70       This  image  is  a  facsimile received at high resolution (196 lpi); it
71       only needs to be converted to 98 lpi.
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73              hyla% /usr/sbin/tiffcheck faxix.tif
74              REVRES
75              Document requires reformatting to adjust vertical resolution (convert to 98, document is 196).
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SEE ALSO

78       tiff2fax(8C), faxq(8C), hylafax-server(5F)
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82                               January 18, 1996                  TIFFCHECK(8C)
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