NAME
djvumake - Assemble DjVu image files.
SYNOPSIS
djvumake djvufile [chkid=argument]...
DESCRIPTION
Program djvumake assembles a single-page DjVu file djvufile by copying
or creating chunks according to the provided arguments. Supported
arguments are as follows:
INFO=w,h,dpi
Create the initial information chunk. Arguments w, h, and dpi
describe the width, height and resolution of the image. All
arguments may be omitted. The default resolution is 300 dpi.
The default width and height will be retrieved from the first
mask chunk specified in the command line options.
Sjbz=jb2file
Create a JB2 foreground mask chunk. File jb2file may contain
raw JB2 data, or be a DjVu file containing JB2 data such as
those produced by program cjb2.
Smmr=mmrfile
Create a MMR/G4 foreground mask chunk. File mmrfile may contain
raw MMR data or be a DjVu file containing MMR data.
BG44=iw44file[:n]
Create one or more IW44 background chunks. File iw44file must
contain IW44 data. Such files can be obtained by compressing
the background image with program c44 and extracting the raw
IW44 data using program djvuextract. The optional argument n
indicates the number of chunks to copy from the IW44 file.
Omitting the number of chunks copies all available chunks.
BGjp=jpegfile
Create a JPEG encoded background chunk. File jpegfile must
contain JPEG encoded data.
BG2k=jpegfile
Create a JPEG-2000 background chunk. File jpegfile must contain
JPEG-2000 encoded data. The DjVu decoder does not yet display
files containing JPEG-2000 data.
FGbz=(filename|{#color[:x,y,w,h]})
Create a foreground color chunk describing one solid color for
each JB2 encoded mark. The argument can be the name filename of
a file containing the raw data. Such files are best created
using program djvuextract(1). Alternatively the argument could
describe a sequence of color zones. Each color zone specifies a
color name color, and optionally the coordinates x,y,w,h of a
rectangle. Each mark receives the color of the last color zone
whose rectangle intersects the bounding box of the mark. The
mark is painted black if its bounding box does not intersect one
of the zones. The rectangle coordinates are expressed in pixels
with the origin at the bottom left corner of the page. The full
page is assumed when no rectangle coordinates are specified.
Color names can be specified with exactly six hexadecimal
digits, e.g. FGbz=#FF8080, or by one of the following sixteen
HTML color names defined by the W3C, e.g. FGbz=#red.
+----------------------------------+
|aqua black blue fuchsia |
|gray green lime maroon |
|navy olive purple red |
|silver teal white yellow |
+----------------------------------+
FG44=iw44file
Create a IW44 foreground color chunk. File iw44file must
contain IW44 data. Such files can be obtained by compressing
the background image with command c44 and extracting the raw
IW44 data using program djvuextract. Only the first chunk is
copied.
FGjp=jpegfile
Create a JPEG foreground color chunk.
FG2k=jpegfile
Create a JPEG-2000 foreground color chunk. The DjVu decoder
does not yet display files containing JPEG-2000 data.
INCL=fileid
Create a DjVu3 include chunk pointing to the component file
named fileid. The resulting file should then be included into a
multipage document using command djvm.
Djbz=jb2file
Create a JB2 shape dictionary. File jb2file must contain raw
JB2 data describing a JB2 dictionary.
PPM=ppmfile
Create a IW44 background chunk and a IW44 foreground color chunk
by masking and subsampling the PPM file ppmfile.
Assume, for instance, that we have a PPM image myimage.ppm and
an identically sized PBM bitonal image mymask.pbm whose black
pixels indicate which pixels belong to the foreground. Such a
bitonal file might have been obtained by thresholding or color-
keying the PPM image. We can then produce a DjVuDocument image
using the following two commands:
cjb2 mymask.pbm mymask.djvu
djvumake my.djvu Sjbz=mymask.djvu PPM=myimage.ppm
The DjVu specification documents in the directory doc of the DjVuLibre
distribution provide the authoritative information about the
composition of a legal DjVu image file.
CREDITS
This program was written by Leon Bottou <leonb@users.sourceforge.net>
and was then improved by Andrei Erofeev <andrew_erofeev@yahoo.com>,
Bill Riemers <docbill@sourceforge.net> and many others.
SEE ALSO
djvu(1), djvuextract(1), cjb2(1), c44(1)