see my original question at the end.
My question was in short: how to "vectorize" a raster-image...
The short summary:
-> there are solutions, that claim to do vectorization of raster-images.
-> (with the words of Walter Reed <firstname.lastname@example.org>):
> Nothing works REALLY well
-> up to now i was not able to do what my dream was:
scan a paper-original, vectorize it and then be able to modify it
with a drawing tool (like tgif or xfig)
The longer version of my summary:
-> obviously there are lots of(?) programs to deal with the vectorization
of a raster-image. Some of these are (alphabetic order):
autotrace ( http://homepages.go.com/homepages/m/a/r/martweb/AutoTrace.htm )
CorelTrace ( part of CorelDraw )
freehand ( macromedia )
kvec ( http://ourworld.compuserve.com/homepages/kkuhl/homepage.htm )
streamline (adobe ) and then illustrator to export dxf format
"asking" MetaCrawler for image vectorization returns "some"
commercial systems too.
-> then there is ImageMagick with "convert" to convert between dozens
of (raster) formats to end up with one, which could be used as input
for one of the above...
-> up to now i tried with kvec and autotrace only:
kvec could handle the "tiff" format which my scanner could write,
but obviously i have to learn much more about graphics before i
really could hope to end up with a "usable" vector-format file.
At least kvec finishes within 5 minutes (per 4 MB tiff-file)
and keeps the fine details (PS), but i did not manage (yet?)
to include its fig-format into xfig and manipulate that...
autotrace i ftp'd only this morning, it configured and built fine
on my solaris-box, but when i run it on a "convert"ed bmp- or pnm-
file it did not come to an end within 30 minutes, so i interrupted it...
So my final statement now could only be: i'm still dreaming
and working to make my dreams come true...
Originally I've asked:
>i'm looking for some tool, preferrably under solaris :),
>that enables me to do something like OCR, not with text
>but with b/w "graphics", e.g. the plans of our company-buildings,
>consisting mainly of white areas and black lines, which exist only
>as printed papers. If i scan those plans and want to preserve
>the details (600dpi) i end up with big tiff-files, "pixel-based".
>Now i want to "re-vectorize"(?) these files... Is this possible?
Thanx for the responses!
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