JPEG to Djvu.
--- a/djvu.rst Fri Sep 19 20:04:24 2014 +0300
+++ b/djvu.rst Sun Sep 28 23:21:15 2014 +0300
@@ -50,6 +50,10 @@
$ ddjvu -format=tiff book.djvu book.tiff
$ tiff2pdf -o book.pdf book.tiff
+or directly::
+
+ $ ddjvu -format=pdf book.djvu book.pdf
+
pdf to djvu.
============
@@ -72,24 +76,31 @@
http://code.google.com/p/pdf2djvu/
home page
-jpg to djvu.
-============
-
-JPEG to bitonal DjVu.
----------------------
-::
+JPEG to Djvu.
+=============
- $ anytopnm page.djvu | ppmtopgm | pgmtopbm -value 0.499 > page.pbm
- $ cjb2 -dpi $DPI page.pbm page.djvu
-
- $ djvm -c $OUTFILE $MASK.djvu # Many .djvu to single .djvu.
+JPEG to high quolity DjVu (DjVuPhoto encode)::
+ $ c44 -dpi $DPI $FROM.jpg $TO.djvu
-JPEG to low colour DjVu.
-------------------------
-::
+JPEG to low colour DjVu::
$ cpaldjvu -dpi $DPI -colors $NCOLORS $i $i.djvu
- $ djvm -c $OUTFILE $MASK.djvu # Many .djvu to single .djvu.
+ $ djvm -c $OUTFILE *.djvu # Many .djvu to single .djvu.
+
+JPEG to bitonal DjVu::
+
+ $ convert $PAGE.jpeg $PAGE.pbm
+ $ cjb2 -dpi $DPI $PAGE.pbm $PAGE.djvu
+
+ $ djvm -c $OUTFILE *.djvu # Many .djvu to single .djvu.
+if you don't like default delev of balck adjust options::
+
+ $ convert -solarize 50% -level 0,50% $PAGE.jpeg $PAGE.pbm
+
+or::
+
+ $ convert $PAGE.jpeg pgm:- | pgmtopbm -value 0.499 > page.pbm
+