In this tutorial, Co-Founder of Masters of PixInsight, Ron Brecher, demonstrates how to use the DeLinear script alongside custom tweaks to the Screen Transfer Function (STF) for quick and effective image stretching in PixInsight.
Key steps include:

Optimizing STF Parameters:
- Adjust the STF background brightness target to around 0.1 for a more natural stretch. Learn how to control-click the radioactive icon to customize and save new parameters.

Installing and Using the DeLinear Script:
- Install Hartmut Bornemann’s script repository and locate the DeLinear script under the Utilities menu. Apply it with one click to convert an STF stretch into a permanent histogram transformation.

Achieving Better Control Over Stretching:
- Understand how the DeLinear script transfers STF settings to histogram transformation, ensuring consistent results with minimal effort.

This tutorial provides a streamlined approach to de-linearization, offering astrophotographers a faster and more effective way to prepare their images for further processing.