Staring @ the Sun, 124

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Pros and Cons


05/27/2024. Several variables are under my control
while taking and processing solar image data. Imaging conditions influence some selections, but presumably some aspects of the workflow are common to all (or almost all) conditions.

I'll get back to this shortly. I've got a couple of ARs to deal with first.

 

Taking data:

Polar alignment

Scale

Size of frame

Flatfields (defocused or diffused)

Binning

Bit depth

Frame size

Gain

Gamma

Exposure

Focus

Number of Frames

 

Adjusting to Conditions:

Cloudiness

Transparency

Uniformity of Transparency

Seeing in all its forms

 

Refining the video:

Fraction of Frames

Selecting an anchor point

Number of alignment points

Drizzling

 

Processing the refined image:

Preprocessing (bring up shadows, preserve highlights, make exposure adjustments; crop unstacked areas; noise suppression)

Primary refinement using Smart Sharpen or ImPPG, note availability of more desperate measures like FFT, -FFT

Secondary refinement (additional sharpening, highlight/shadow control, noise suppression, color mapping)

 

 

 

 

 

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                   © 2024, David Cortner