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Two New PixInsight Processing Tutorials: Stretching Linear Images to Non-linear and Touching Up Colour in Images

1/1/2016

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Two new PixInsight processing tutorials have now been written. The first one, Stretching Linear Images to Non-linear covers another basic function of PixInsight. This is a fundamental step in any post-processing workflow done to astrophotographs, as it brings out the contrast in images to bring our work to light. The second one, Touching Up Colour in Images, covers performing saturation enhancements to selected colours or overall, as well as performing hue shifts. 
The first tutorial covers the three processes in PixInsight designed for stretching images from linear to non-linear - AdaptiveStretch, AutoHistogram, HistogramTransformation and ​MaskedStretch. The main process for stretching images in PixInsight is undoubtedly HistogramTransformation, but all three are covered for completeness. If you would like to read this tutorial, please follow this link to it. 

The second tutorial covers the ColorSaturation and CurvesTransformation processes. The procedure described is particularly useful for those dealing with narrowband images as the false colours in narrowband images can be tweaked meticulously if desired. If you would like to read this tutorial, please follow this link to it. 
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