Part-3 of our PixInsight tutorial series moves on to more advanced topics. Among those covered will be: HDR composition, building mosaics, multiscale processing via wavelets, Narrowband image processing, and further refinement of techniques involving Masks, PixelMath, etc. Also featured is a recap of earlier concepts detailed in Part-1 and 2, providing the much needed Context and Chronology - the what to do, and when to do it.

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-3 Series Extras

PixInsight Sample Workflow

Warren's New Instance Process Icons

Follow this link to download Referenced Tutorial Images

WEB Links referenced in PixInsight Part-3

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-3 Advanced topics and special features. 2:54min 
PI-1 Recap-1 offers a Step-by-Step Review of what we've learned in PixInsight Part-1 and Part-2, further providing the 'what to do and when to do it' for your PI workflow. One-Shot-Color procedures are demonstrated. Monochromatic imagers will benefit from this as well. 6:03min
PI-2 Recap-2 offers a Step-by-Step Review of what we've learned in PixInsight Part-1 and Part-2, further providing the 'what to do and when to do it' for your PI workflow. Monochrome procedures are demonstrated. 5:00min
PI-3 Recap-3 completes our Step-by-Step Review of what we've learned in PixInsight Part-1 and Part-2. The second half of Monochrome workflow is demonstrated. 4:44min
PI-4 HDR Composition details the HDRComposition and GradientHDRComposition processes for combining exposures of different lengths, to preserve high dynamic range detail. 4:03min

Preview PI-5 Mosaics-1 begins our 6-part miniseries on mosaic construction. 4:31min

PI-6 Mosaics-2 features the construction of a 2-panel mosaic. The StarAlignment process is profiled. 3:46min
PI-7 Mosaics-3 continues with the construction of our 2-panel mosaic. The GradientMergeMosaic process for seamless mosaic stitching is introduced. 4:18min
PI-8 Mosaics-4 begins the construction of a 4-panel monochromatic mosaic template. StarAlignment's Restrict to Previews, and registration confirmation with a mask are covered. 7:24min
PI-9 Mosaics-5 continues the construction of a 4-panel monochromatic mosaic. Alignment of individual panels to the template created in PI-8 is detailed. Three different approaches are featured. 6:25min
PI-10 Mosaics-6 concludes our 6-part mosaic miniseries. Three different paths for GradientMergeMosaic are shown, and a quick recap brings context and chronology to mosaic procedures. 2:41min
PI-11 Star Masks-1 provides a more in-depth look at star mask creation for advanced image processing. 7:13min
PI-12 Star Masks-2 profiles ATrousWaveletTransform for the creation of star masks. Alteration and repair of star masks, as well as useful tricks are detailed. The Convolution process is also introduced. 4:56min
Preview PI-13 Multiscale-1 introduces bona fide multiscale processing with PixInsight. We demonstrate the deconstruction of an image into varied scales, and how to recombine them when work is complete. 4:01min
PI-14 Multiscale-2 concludes our two-part miniseries on advanced multiscale processing techniques with PixInsight. With an image deconstructed into small and large scales, we draw out faint nebulosity and sharpen detail before reassembling the image. 5:31min
Preview PI-15 Narrowband-1 begins our 6-part miniseries on Narrowband image processing. After an introduction to the major palettes, we use PixelMath, LRGBCombination, and ChannelCombination, to assemble Ha, OIII, and SII images into a Master file. 5:12min
PI-16 Narrowband-2 demonstrates the power of Scripts for assembling Ha, OIII, and SII images into a Master file. Multichannel Synthesis's SHO-AIP script is introduced. Also shown is the creation of Narrowband pseudo-luminance. 5:05min
PI-17 Narrowband-3 addresses Narrowband stars. Repair, replace, or remove them for different effects. 3:22min
 PI-18 Narrowband-4 returns to PixInsight scripts to combine Narrowband data with (L)RGB. We revisit SHO-AIP and introduce the HaRVB-AIP and NBRGB scripts. 5:08min
PI-19 Narrowband-5 returns to processes for blending Narrowband data with (L)RGB. Demonstrated is a special technique by the PTeam's Vicent Peris for blending Hydrogen alpha and Luminance. 2:44min
PI-20 Narrowband-6 concludes our 6-part miniseries on Narrowband image processing. Hydrogen alpha and Oxygen 3 are selectively blended to an (L)RGB's chrominance using masks and PixelMath. 4:25 min
PI-21 Superbias details the new Superbias process for noise-free calibration with improved modeling of your camera's bias signal. Also introduced is the new 24-bit LUT visualization feature. 3:14min
PI-22 Drizzle introduces the new DrizzleIntegration process, for implementing the Variable-Pixel Linear Reconstruction algorithm on undersampled data. 4:22min
PI-23 CometAlignment shows you how to have the best of both worlds- an untrailed comet, and round stars! 4:42min
PI-24 Preprocessing Update brings you up to speed with recent additions to both the ImageIntegration and ImageRegistration processes. 2:20min
PI-25 Scripts Redux covers additional scripts worthy of note. BatchFormatConversion, BatchLinearFit, FWHMEccentricity, SubframeSelector, CanonBandingReduction, FITS Keywords, and FITSFileManager scripts, Feature Scripts, and Global Reset are profiled. 5:40min
Preview PI-26 Wrap-Up concludes the three-part PixInsight series from Acknowledgements, Additional Resources, Special Features, and a look into the future of PixInsight, as well as IP4AP are covered. 6:13min

PixInsight Part-1 available for purchase

PixInsight Part-2 available for purchase