My High-Level Narrowband Workflow

2-Minute Tutorials

Jan 8, 2023

This video deals with the high-level workflow for processing Narrowband SHO images. Sometimes getting a 50,000 ft view of what you are doing is helpful. It also gives a bit of a framework for other aspects we will be covering in this series.

I should note that this chart comes from a particular project where I extracted my stars from the Luminance channel rather than the SHO color image.

I do that sometimes.

It is equally valid to extract your stars from the color SHO image. You can then process them to ensure you have the color you want, and you can avoid any funkiness.

I do that sometimes as well.

Since the color from SHO Narrowband is, by definition, false color, I often don't like how the stars look. So I try different ways on each image and make a call based on my reference. In my mind, the best way to is to capture RGB data of the stars along with the Narrowband data, extract true color RGB stars and add them to the final image. When I have clear skies and the ability to capture this RGB data, I do that. In my opinion, this gives the very best look in the final image. I don't always have that luxury so I play with different ways and pick what think looks better for a given image.

Patrick A. Cosgrove

A retired technology geek leveraging his background and skills in Imaging Systems and Computers to pursue the challenging realm of Astrophotography. This has been a fascinating journey where Art and Technology confront the beauty and scale of a universe that boggles the mind…. It’s all about capturing ancient light - those whispering photons that have traveled long and far….

https://cosgrovescosmos.com/
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Using DynamicCrop with Mono Images

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An SCNR Trick for SHO Images!