Local Normalization was not linked across panels. Each panel of a mosaic needs its own LN reference because the background flux differs.
LN can slightly amplify noise in high-gradient areas. Use (MLT) or NoiseXTerminator on the linear image before stretching. pixinsight lerar link
Highly recommended tool for advanced stretching of images. Local Normalization was not linked across panels
PixInsight is the undisputed king of astrophotography processing, prized for its scientific rigor and professional-grade results. But its vast toolset comes with a steep learning curve, and few tools generate as much discussion—and sometimes confusion—as the LinearFit process. In this comprehensive guide, we’ll demystify LinearFit, exploring its powerful algorithm, practical applications in RGB and narrowband imaging, and its precise place in your processing workflow. Use (MLT) or NoiseXTerminator on the linear image
PixInsight applies the same mathematical stretch to all three color channels (Red, Green, and Blue) based on the image's overall statistics.
Before we dive into Local Normalization, you must understand basic linking. WBPP automates this, but errors happen.