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PixInsight - Improving the Non-Linear Image |
Sharpening Details with Multiscale Linear Transform |
updated: 2026-02-19 |
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Purpose |
In this step PixInsight is used to sharpen details in the nearly final image |
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Activation |
Menu: Process 🡺 Multiscale Processing 🡺 MultiscaleLinearTransform and: Script 🡺 Image Analysis 🡺 Extract Wavelet Layers |
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Input |
a nearly final non-linear image, preferably of the the DSO object without stars after the MAS (Multiscale Transform Stretch) |
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Output |
a sharpened image |
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Tutorial |
From Blurry to Brilliant: Master Image Sharpening with PixInsight Multiscale Linear Transformation |
Steps:
- Open the nearly final non-linear image, preferably of the the DSO object without stars after the MAS (Multiscale Transform Stretch), e.g.:
- Open Process 🡺 Multiscale Processing 🡺 MultiscaleLinearTransform and set these parameters:
- Open Script 🡺 Image Analysis 🡺 Extract Wavelet Layers and set the following parameters:
- Click on OK and hide the wavelet windows that are being created by this script.
- Go back to the MultiscaleLinearTransform and open the preview window to show the effect of the transformation.
- Apply the process to the image.
- ... and check the result:
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Before |
After |
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Hint: A simpler method is to increase the sharpness and detail levels in Lightroom Classic (LRC). However, since LRC cannot import XISF files, this method only works with TIFF or JPG files.
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