Blog

Articles on workflow and processing, experiences with equipment, or just general stories related to astronomy or astrophotography.

How bad is oversampling?
Equipment, Processing Willem Jan Drijfhout Equipment, Processing Willem Jan Drijfhout

How bad is oversampling?

My system at the remote observatory is highly over-sampled. How bad is that, and does it make sense to bin the data? This blog will answer those questions, based on a recent image of the Crescent Nebula. This also allowed a comparison with historic and properly sampled data.

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Removing Colour artefacts from OSC images
Processing Willem Jan Drijfhout Processing Willem Jan Drijfhout

Removing Colour artefacts from OSC images

When processing OSC images several colour artefacts keep coming back. In most cases it is not very difficult to remove them in post-processing. In this blog some tips and tricks with examples and workflow on how to remove some of them.

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Six most important improvements in WBPP 2.0
Processing Willem Jan Drijfhout Processing Willem Jan Drijfhout

Six most important improvements in WBPP 2.0

The WeightedBatchPreProcessing script in PixInsight has been an invaluable tool to calibrate frames. The recently released version 2 is a massive update with a lot more customisation options and transparency. Read here about the six biggest improvements.

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Noise Reduction using MMT
Processing Willem Jan Drijfhout Processing Willem Jan Drijfhout

Noise Reduction using MMT

There are many ways to reduce the noise in an image. MultiscaleMedianTransform (MMT) provides a straightforward approach that gives very good results most of the time.

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