Embedded Files
Taking images of deep-sky objects is only half of the game. Those images will need a lot of manipulation to produce a final, pleasing image. Here are some processing examples to demonstrate my workflow for different objects.
This article shows the processes that created this image of the Witch Head Nebula from hundreds of individual subframes.
Pre-processing using the Weighted Batch Preprocessing Script in Pixinsight to create luminance, red, green, blue, and Halpha master files
Taking the master files from linear to nonlinear in Pixinsight and applying noise reduction.
Bringing the master files together in Photoshop.
Adding Halph data and completing the image using Photoshop.
Here we'll combine narrowband images shot through Halpha, Oxygen III, and Sulfur II filters with RGB stars to bring out the beauty of the Rosette Nebula.
Linear processing of the master files in Pixinsight.
Stretching the masters in Pixinsight and combining the Ha and OIII data in Photoshop.
Adding the SII data.
Overall adjustments and adding RGB stars.
This article demonstrates a workflow for the Whirlpool Galaxy using data shot from my Bortle 5 backyard.
Processing the master files in Pixinsight through stretching, noise reduction, and star removal.
Combining the LRGB masters in Photoshop.
Adding the Ha data and stars, and overall image adjustments in Photoshop.
Here we'll use Pixinsight and Photoshop to create an image of a globular cluster, the famous M13 in the constellation Hercules. This data was shot from my backyard.
Processing, stretching, and noise reduction in Pixinsight.
Combining the masters and completing the image in Photoshop.
This is a new article and currently has one page, covering linear processing and stretching in Pixinsight. More to come soon.
This article explores how to combine and process frames from videos on the sun that were shot through a solar telescope.
Choosing the best frames and combining them in Autostakkert.
Developing the resulting master in Pixinsight using the SolarToolkit process.
Combining the data from my 294MM Pro and 1600MM Pro cameras to use in the Whirlpool Galaxy example above.
An example of how different tools in Photoshop can help mitigate artifacts caused by reflections of nearby bright stars.
Astrophotography purists should look away, as we'll be adjusting data to enhance an image of the Orion Nebula, albeit at the cost of a slight loss of astronomical accuracy.
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