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<div class="moz-cite-prefix">On 2/12/2014 10:38 AM, Steven Christe
wrote:<br>
</div>
<blockquote
cite="mid:184FE51A-4AB6-48B0-A1BC-747C29826341@gmail.com"
type="cite">
<pre wrap="">
Hi Jim, I am actually working on this problem currently and have implemented a solution in SunPy. It is currently in a branch on my fork called hmi_fix which you can find here
<a class="moz-txt-link-freetext" href="https://github.com/ehsteve/sunpy/blob/hmi_fix/sunpy/map/sources/sdo.py">https://github.com/ehsteve/sunpy/blob/hmi_fix/sunpy/map/sources/sdo.py</a>
under the function called _angle_of_incidence
This function clearly belongs in a higher level than the hmi map class. Let’s discuss what your needs are, what data you are working on, and we can work how we can best help you.</pre>
</blockquote>
Hello Steven,<br>
<br>
Thanks for your interest. That is good news!<br>
<br>
I'm working on automated Solar features classification which uses
mono-chromatic Solar images at various wavelengths. Presently, the
classifier analyzes SDO-AIA (FITS) images, but we want to include
H-alpha (FITS) images (gong2.nso.edu) to hopefully improve Sunspot
and filament detection. However, the limb-darkening, of the H-alpha
images, is proving problematic. When GOES-R launches, we will
switch to SUVI as the UV images source.<br>
<br>
Hopefully, I've answered your questions.<br>
<br>
What is the next step here? Shall I download your code and start to
play?<br>
<br>
-- jv<br>
<br>
<br>
On Feb 12, 2014, at 12:17 PM, Stuart Mumford
<a class="moz-txt-link-rfc2396E" href="mailto:stuart@mumford.me.uk"><stuart@mumford.me.uk></a> wrote:
<blockquote
cite="mid:184FE51A-4AB6-48B0-A1BC-747C29826341@gmail.com"
type="cite">
<blockquote type="cite">
<pre wrap="">Hi,
You might be interested in SunPy (<a class="moz-txt-link-freetext" href="http://sunpy.org">http://sunpy.org</a>).
We don't have limb darkening code at the moment but we would be willing to help you out if you wanted to add it.
Stuart
On 12 February 2014 16:06, jim vickroy <a class="moz-txt-link-rfc2396E" href="mailto:jim.vickroy@noaa.gov"><jim.vickroy@noaa.gov></a> wrote:
Hi,
Is there any existing Python software for the removal of Solar Limb darkening? My on-line search has failed to find anything so far.
Thanks,
-- jv
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