I always pictured the character as a kind of 'mu', but it could equally well be an open-topped 'p', an 'r', a 'y', or an invented glyph.
Regarding colour deconvolution - is that just a way of re-expressing an rgb colour in terms of three different base colours? If so, then it should be possible to simply create a 3x3 matrix to process each rgb triple and end up with the values expressed in terms of three new base colours (e.g. light blue, purple, yellow). I think the matrix would be the inverse of the matrix formed from the three base colours, e.g.
|C1r C1g C1b|-1
|C2r C2g C2b|
|C3r C3g C3b|
where C1,C2,C3 are the new base colours and r,g,b are the red green and blue components.
Does that sound right?
Jon.
> -----Original Message-----
> From: Gabriel Landini [mailto:G.Landini@xxxxxxxxxx]
> Sent: 28 June 2004 19:29
> To: vms-list@xxxxxxxxxxx
> Subject: Re: VMs: RE: oladabas again...
> Importance: Low
>
>
> On Monday 28 June 2004 16:35, Jon Grove wrote:
> > If so, I'd say it's also the same character as the ones on
> f20r, f32r, and
> > maybe f29r - as seen in Walter Ogburn's page at
> > http://www.ugcs.caltech.edu/~reuben/voynich/plant-writing/index.html
> >
> > They do look very similar. Interesting!
>
> Yup, that's the one! What is it? I thought that it was some
> funny "r" so 3 of
> the labels read "rot" (red in German?): f4r, 7r and 9v
>
> To Nick:
> > Can you please post a link to your latest cleaned up
> version of this frame
> > (ie without the blue) so that we can all see what you're looking at?
>
> Yes, I will, but I still have to upload the images.
> I used 2 algorithms: colour deconvolution and image ratio.
>
> The green paint is the easiest to remove with the first
> algorithm while for
> the reddish brown (f7r) and the blue (f9v) I used colour
> deconvolution to
> get the main paint and the ratio of the original and the
> paint to get the
> writing.
>
> I plan to write a tutorial for the ImageJ plugin I wrote
> using Ruifrok &
> Johnston's colour deconvolution algorithm and will use the
> vms as an example.
> Please be patient! :-)
>
> Cheers,
>
> Gabriel
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