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Over the Apennines by Paul Margolies

Non-linear adjustments to reveal faint details.

Showing 1-37 of 37

	Replies	Views	Created
Bluish patch appearing in stretched images despite unchanged optical setup Celestron EdgeHD 11"ZWO ASI2400MC Pro Calibration +1 Jorge Roque Last post: Jorge Roque	25	430	20 days ago
Scientific processing or artistic processing, which one is more important for astrophotography? Processing Color Calibration HDR +3 Marshall Huang Last post: Gary Lopez	54	1.3k	23 days ago
VeraLux HyperMetric Stretch - an open discussion Siril Team Siril Processing Stretching +2 Riccardo PaternitiFrequent contributor Last post: Riccardo Paterniti	174	4.2k	Dec 10, 2025
Red channel overpowering in M33 - color balancing advice needed Processing Color Calibration Stretching +4 Michael Telesco Last post: Michael Telesco	7	191	Oct 18, 2025
Umm… why am I getting so much signal in only 6 hours? B4.8 skies … 😅 Processing Stretching Narrowband +3 Read noise Astrophotography Last post: Read noise Astrophotography	16	697	Sep 6, 2025
GHS stretching haze around stars while enhancing IFN in Deer Lick Group Processing Stretching Artifacts +2 Rabeea Alkuwari Last post: Tony Gondola	3	144	Aug 31, 2025
Processing techniques for LDN 1089: balancing faint dust and bright stars Processing Stretching Advanced +3 Francesco Meschia	0	102	Aug 11, 2025
BACKGROUND SKY LEVEL Pleiades Astrophoto PixInsight Stretching Processing Riccardo Civati Last post: Tony Gondola	14	632	Jul 30, 2025
Pixel Math Processing Stretching Deep Sky Tony GondolaFrequent contributor Last post: SkyHoinar	7	362	Jun 10, 2025
What is causing these weird banding patterns in my luminance image? Processing Stretching Deep Sky +1 SolarVortex3562 Last post: SolarVortex3562	11	281	Feb 1, 2025
Nice Adam Block Video Simplifying Some of the Basic First Steps Using The Notorious Orion Nebula as Example GHS Made a Substantial Difference Processing Stretching Jerry Yesavage	0	40	Nov 12, 2024
[RCC] M45 Stretching Request for feedback M45 +1 Brion Pellarin Last post: Daniel Carter	21	459	Oct 29, 2024
Statistical Stretch for Everyone! SetiAstro Statistical Stretch Pleiades Astrophoto PixInsight Processing +1 Franklin Marek Last post: Tony Gondola	1	186	Oct 21, 2024
Siril Histogram Autostrech Broken? Siril Team Siril Processing Stretching Szijártó Áron	0	82	Oct 12, 2024
Bill Blanshan HT stretch linked RGB Processing Stretching Deep Sky Anthony (Tony) Johnson Last post: Anthony (Tony) Johnson	4	353	Oct 5, 2024
Luminance Stretching Processing Stretching LRGB +1 Karl Theberge Last post: Karl Theberge	8	494	Apr 9, 2024
Strange 'waffle' pattern in the blue channel ZWO ASI533MM Pro Acquisition Stretching +2 Jeremy Taylor Last post: Tim Hawkes	30	690	Jun 10, 2023
[RCC] - Omega Centauri - my first attempt at a Glob Pleiades Astrophoto PixInsight Processing Stretching +1 SamMcIver Last post: Clint Lemasters	2	155	Apr 29, 2023
Help Using GeneralisedHyperbolicStretch Pleiades Astrophoto PixInsight Processing Stretching +2 Zak Jones Last post: Bruce Donzanti	9	617	Feb 16, 2023
Looking for guidance on controlling star bloat when stretching a stars only image after using StarXterminator. Processing Stretching Star Reduction +1 Chris Jensen Last post: Joe Linington	6	983	Jan 31, 2023
Generalised Hyperbolic Stretch - How's my stretching? Processing Stretching Solar System Stuart Taylor Last post: TurtleCat	3	533	Jan 18, 2023
Best way to stretch an Image in Pixinsight Pleiades Astrophoto PixInsight Processing Stretching +1 Anderl Last post: Dale Penkala	6	936	Dec 21, 2022
Saving an .xisf file in PI to .jpg or .tiff Processing Stretching Deep Sky Jerry Gerber Last post: Jerry Gerber	24	746	Dec 15, 2022
Black point and dynamic range, what is true. Processing Stretching Deep Sky Soothsayerman Last post: Soothsayerman	10	812	Dec 14, 2022
Adam block studios Processing Stretching Deep Sky NeilJones Last post: NeilJones	1	324	Dec 7, 2022
GeneralizedHyperbolicStretch Precess Module for PixInsight GHS Made a Substantial Difference Stretching Processing Mike Cranfield Last post: David Payne	6	259	Nov 2, 2022
GHS top notch stretching GHS Made a Substantial Difference Stretching Processing jacquesdeacon Last post: David Payne	15	348	Sep 17, 2022
Just trying to speed up first-pass post-processing before spending hours on an image Russell Croman Astrophotography NoiseXTerminator Processing Stretching +1 Andy Wray Last post: dkamen	6	213	Jul 30, 2022
GeneralisedHyperbolicStretch Version 2.2.0 - Improved image stretching for Pixinsight users Pleiades Astrophoto PixInsight Processing Stretching +1 Mike Cranfield	0	291	May 19, 2022
Generalised Hyperbolic Stretch Version 2.1.0 Pleiades Astrophoto PixInsight Processing Stretching +1 Mike Cranfield Last post: Mike Cranfield	15	2.2k	Apr 2, 2022
Pixinsight image stretching – GHS Version 2 Pleiades Astrophoto PixInsight Processing Stretching Mike Cranfield Last post: Jerry Yesavage	376	35.6k	Mar 7, 2022
How do people handle stars in their images? Nikita Misiura StarNet Processing Stretching +1 Andy Wray Last post: Jason Cropper	5	423	Jan 20, 2022
Preferred Stretching Technique Serif Affinity Photo Processing Stretching +2 Gary Seven Last post: Gary Seven	2	458	Jan 7, 2022
How to reduce star size whilst keeping them looking natural Processing Star Reduction Stretching +1 Andy Wray Last post: David Payne	13	1.7k	Dec 15, 2021
What methods do people use to stop star bloat? Processing Stretching Deep Sky Andy Wray Last post: noodle	6	563	Dec 13, 2021
How to improve your astro images ... Pleiades Astrophoto PixInsight Processing Stretching +1 Mike Cranfield Last post: David Payne	22	2.1k	Dec 10, 2021
Alternative Image Stretching for Mathematically bent Pixinsight Users: from Linear to non-linear - quicker, easier,.... and better? Pleiades Astrophoto PixInsight Processing Stretching +1 David Payne Last post: Patrick Graham	77	11.3k	Oct 3, 2021

Showing 1-37 of 37