Re: 20030725 NOAA0652 sunspo
From: Eric Ng (ericng_at_cuhk.edu.hk)
Date: 07/25/04
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Date: Mon, 26 Jul 2004 00:42:21 +0800
Highlight those noise with a circle or arrow would be useful. :-)
Many thanks and cheers,
Eric Ng
"Eric Ng" <ericng@cuhk.edu.hk> 在郵件
news:ce0no1$m6j2@imsp212.netvigator.com 中撰寫...
> Hi John,
>
> Thanks for your comment. I seldom use Maximum Entropy for my webcam image.
> Those images were processed with mild wavelet processing in Registax and
> unsharp masking in photoshop. As the webcam I used is a BW CCD in RAW
mode,
> the noise is very minimal.
>
> Just curious why you think those "noise" you think was caused by Maximum
> Entropy? Actually any sharpening filter can enhance the visibility of the
> noise. That is very kind of you if you could highlight the noise on my
> image, I will try using another processing approach and see whether it can
> be improved.
>
> Cheers,
>
> Eric Ng
>
>
> "John Moore" <xxxxx@none.net> 在郵件
> news:A7RMc.13817$f4.8447@newsread3.news.atl.earthlink.net 中撰寫...
> > These aren't too bad, Eric, although if you're using maximum entropy for
> > enhancement, you have to be careful not to intoduce excessive noise
along
> > with the granulation. Did you use max ent here? Just wondering,
because
> I
> > see a bit of noise.
> >
> > John Moore
> >
> > "Eric Ng" <ericng@cuhk.edu.hk> wrote in message
> > news:ce0lfo$m6f1@imsp212.netvigator.com...
> > > Dear friends,
> > >
> > > Attached was the NOAA0652 sunspot group captured on 25 July, 2004 with
> 4"
> > > APO refractor and BW ToUCam Pro at F20 and F40 respectively.
> > >
> > > Wish you like it.
> > >
> > > http://www.ort.cuhk.edu.hk/ericng/20040725-NOAA0652-closeup.jpg
> > >
> > > http://www.ort.cuhk.edu.hk/ericng/20040725-NOAA0652.jpg
> > >
> > > Regards,
> > >
> > > Eric
> > >
> > >
> >
> >
>
>
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