In Part-2 of our PixInsight tutorial series, we'll perform permanent, nonlinear stretches, reduce noise, develop amazing detail, and perform many other enhancements using the power of multiscale wavelets transformations. 

PixInsight is the brainchild of Juan Conejero, a Spanish software developer who has led Vicent Peris and the 'PTeam' since 2004 in PI's development. If you're new to image processing, PixInsight is a very powerful and much less expensive alternative to Photoshop. New modules are being added all the time, eliminating the need for astro-specific, 3rd-party plugins as with Photoshop. Because it was specifically designed for Astrophotography, it has definite advantages over Photoshop and we can see a time in the near future when its postprocessing abilities will surpass Photoshop in many areas. 

PixInsight Part-2 Series Extras

PixInsight Sample Workflow

Warren's New Instance Process Icons

Follow this link to download Referenced Tutorial Images

Follow this link to download Sample Project

WEB Links referenced in PixInsight Part-2

Take advantage of the Special Feature Icons  at the bottom right of the player. These include Closed Captioning, Chapter Selection, Search and Speed Control.

Preview PI-0 Introduction to PixInsight Part-2. PI version 1.8 'Ripley', changes to the Camtasia Video Player. 3:15min 
PI-1 Linear-1 Noise reduction in the linear state. Introduction to Wavelets, the ExtractWaveletLayers script and the ATrousWaveletTransform process are introduced. 5:49min
Preview PI-2 Linear-2 Noise reduction in the linear state continues with the ATrousWaveletTransform process. PixelMath is introduced. 5:49min

PI-3 Linear-3 The essentials of Nonlinear Stretching. The DigitalDevelopment process is detailed. 5:15min

PI-4 Linear-4 IntensityTransformations. Nonlinear stretching continues with the AutoHistogram and AdaptiveStretch processes. 5:58 min

PI-5 Linear-5 IntensityTransformations continue with more on AdaptiveStretch, and the HistogramTransformation process is introduced. 7:02min 

PI-6 Linear-6 IntensityTransformations continue with more on the very powerful HistogramTransformation- PI's primary tool for nonlinear stretching. 6:57min

Preview PI-7 Nonlinear-1 IntensityTransformations continue with the CurvesTransformation process, and LocalHistogramEqualization is introduced. 6:00min

PI-8 Nonlinear-2 IntensityTransformations continue with LocalHistogramEqualization. The ExponentialTransformation process is also introduced. 6:28min

PI-9 Nonlinear-3 Latest 1.8 Ripley revision, L* correction w/ LinearFit, ChannelExtraction, and ChannelCombination, LRGBCombination of monochromatic Luminance and Chrominance, Chrominance Noise Reduction 7:03min

PI-10 Nonlinear-4 Noise Reduction with the MultiscaleMedianTransform and Adaptive Contrast-Driven Noise Reduction (ACDNR) processes are detailed. 6:59min

PI-11 Nonlinear-5 Noise Reduction continues with ACDNR. Edge and Star Protection, and the Lightness Mask are covered. 4:40min

PI-12 Nonlinear-6 Noise Reduction with ACDNR continues. GREYCstoration and the brand new TGVDenoise are introduced. 4:37min

Preview PI-13 Nonlinear-7 The new TGVDenoise process is profiled. 7:31min

PI-14 Nonlinear-8 Noise Reduction tools are wrapped up with SCNR. 3:22min 

PI-15 Nonlinear-9 The HDRMultiscaleTransform process is profiled. Compress images with higher dynamic ranges and develop amazing detail with the push of a button! 5:38min

PI-16 Nonlinear-10 Both the GradientHDRCompression process, and the DarkStructureEnhance script are profiled. 6:54min

PI-17 Nonlinear-11 ATrousWavelet and MultiscaleMedian transforms for sharpening and enhancement are profiled. The UnsharpMask process is introduced. 5:10min

PI-18 Nonlinear-12 We continue with layer-based sharpening and enhancement using ATrousWavelet and MultiscaleMedian transforms. 4:16min

PI-19 Nonlinear-13 The UnsharpMask process for image enhancement is detailed. Also demonstrated is the Annotation text tool. 5:02min

PI-20 Nonlinear-14 Painting continues with the CloneStamp process for repair and alteration of images and masks. 5:17min

PI-21 Nonlinear-15 The MorphologicalTransformation process is introduced for the improvement of stars. 4:03min

PI-22 Nonlinear-16 Introduces the ColorSaturation process for selective color adjustments, and digs deeper into CurvesTransformation's Saturation channel. 5:17min

PI-23 Nonlinear-17 Color Profiling- The ICCProfileTransformation process is introduced for converting aRGB to the sRGB color space. The ColorManagementSetup is also reviewed. 3:40min

PI-24 Nonlinear-18 The Resample process for resizing images is profiled. Also covered is the Save As dialog for altering file format and bit-depth. 6:02min

Preview PI-25 Addendum-1 Featured are the STF's new Boosted Stretch, and the exciting, new MaskedStretch process. 6:51min

PI-26 Addendum-2 The DynamicAlignment, and Blink processes are detailed. Also covered is an alternate way to open the program. 5:42min

PI-27 Wrap-Up We look ahead to Part-3 of the PixInsight Series from 2:36min

PixInsight Part-1 available for purchase

PixInsight Part-3 available for purchase