Activity for free Buju
-
free Buju posted a comment on ticket #359
A workaround seems to be to run djvm -c bundle.djvu sample.djvu sample.djvu, then djvm -l works on that. From there, it appears superficially to not be too useful. But it actually helped me discover a hack to work around bug 358 (https://sourceforge.net/p/djvu/bugs/358/). djvm -l shows us that page names are assigned as the original filename. These can be used as a handle to make djvused work. I’ll elaborate further in bug 358.
-
djvm -l cannot handle output from cjb2
-
djvused -f crashes when feeding it it’s own output (per the man page example)
-
I wasn't familiar with netpbm. But I would think that the bileveling and the rasterization from a vector image would have to be done in the same step, considering color images seem to need fewer pixels than bitonal images for a given quality. I'm not sure though. However, it's the rasterization that drove me to use ddjvu, which it does in good quality. When I use ImageMagick to rasterize a PDF, it's very poor quality.
-
Another option is to output in normal mode to a tiff image and use “tiffcp” to recode it with a fax codec. What I've been doing is running ImageMagick on the output of ddjvu to convert to a raw "fax" format, then using fax2tiff -f to convert to a Class-F TIFF, which is specifically designed for faxing. When I look at the tiffcp manpage, I see nothing about Class-F. Is fax encoding implied when using group 3/4 compression? Because for other tools, group 3 and 4 compression is a lossless compression...
-
If you want to produce a bitonal image for faxing, best is to output to a pbm file. Indeed I've switched to pbm, but that doesn't solve the problem.
-
I suggest renaming "color" to "whole_image" or "all_layers" and "black" to "foreground stencil". It would also be useful to know the difference between the stencil and the "mask".
-
The source data, in LaTeX, has no concept of foreground or background AFAIK. I think LaTeX support infinite layers. Is it pdf2djvu that assigned objects to foreground and background? Can that be influenced so everything is in the foreground?
-
This is the intended operation of –mode=black. This mode only prints the foreground stencil and discards all background information. The ddjvu doc is not very clear about this. It needs updating. Modes are: black color mask foreground * background To make "black" mean "foreground" (and not the opposite of color) is very far from clear. It fails the rule of least astonishment.
-
will write in small pieces.
-
i just wrote a lengthy reply and sourceforge threw it away as a false detection for spam. I may try again later.
-
pbm output is also broken in the above scenario
-
"ddjvu -mode=black" loses raster images within a vector doc
-
Thanks Karl! When I saw those arrows, I just thought they were indicators that the...
-
Thanks Karl! I originally tried the "apply to streams" button, but apparently that...
-
There doesn't seem to be an output size option anymore.
-
In particular, we could use some commandline documentation. "man webcamstudio" comes...
-
output size stuck at 320x200
-
GUI layout blocks bottom half of sources windows on laptops
-
Debian installation -- Unable to locate tools.jar
1