MultiscaleAdaptiveStretch (MAS, for short) is an image delinearization tool based on statistical and multiscale analysis. It has the following goals:

Bypassing the traditional PixInsight STF - HistogramTransformation workflow to perform a consistent delinearization in an image set.
Apply a robust delinearization based exclusively on statistical properties of the target image. This provides a uniform nonlinear image representation, a basic requirement for composition techniques like LRGB.
Preserve the information of the high-contrast structures while maintaining the contrast of a traditional midtones transfer function stretching.

It works much easier than all the stretching methods I've tried before. Highly recommended!

MultiscaleAdaptiveStretch (MAS) is available in Pixinsight