Image processing

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Isolating a bright star

Last post by Tycho65 « Wed Mar 13, 2024 12:59 pm
Replies: 8
by KathyNS » Fri Dec 04, 2020 8:49 pm

First post

In my image of the Gamma Cass Nebula (IC 63) , I did a lot of work to control the bright star. My technique was to create three separate images from...

Last post

I use starXterminator and have found it to be much better than the other programs I've tried. It is not perfect when up against an extremely bright...

8 Replies

23200 Views

Last post by Tycho65
Wed Mar 13, 2024 12:59 pm
How to Calibrate a CMOS Camera with PixInsight's WBPP Script

Last post by AstroBee « Sat Nov 11, 2023 9:23 pm
Replies: 30
by STEVE333 » Wed Jun 10, 2020 1:33 am
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First post

This short tutorial is intended to show CMOS camera users HOW to calibrate their data. I'll be using the new PixInsight WBPP script for convenience,...

Last post

Just to add, I've taken some dark frames and was suprised how noisy they were. Thanks for the help.
Pete

The dark frames only look noisy because...
30 Replies

65461 Views

Last post by AstroBee
Sat Nov 11, 2023 9:23 pm
Creating a Lunar Mosaic Using a CMOS Camera

Last post by yobbo89 « Sat Jan 16, 2021 5:21 pm
Replies: 22
by bladekeeper » Sun Oct 13, 2019 12:49 am
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First post

Creating a Lunar Mosaic using a CMOS Camera

This tutorial will show you how to capture and create a lunar mosaic using a CMOS camera. A CMOS camera...

Last post

this should be the only thread we can necro post :) haha very good tut and simple , i always come back here for this moon mosiac tutorial .
22 Replies

73537 Views

Last post by yobbo89
Sat Jan 16, 2021 5:21 pm
Solar image processing.

Last post by Gordon « Fri Nov 13, 2020 4:59 pm

by Gordon » Fri Nov 13, 2020 4:59 pm

Below is a list of topics that were created by member Lowjiber (John) that outline the processing techniques he uses to produce his amazing solar...

0 Replies

16158 Views

Last post by Gordon
Fri Nov 13, 2020 4:59 pm
The Most Images You Ever Stacked?

Last post by StarHugger « Sat Apr 12, 2025 4:06 pm

by StarHugger » Sat Apr 12, 2025 4:06 pm

The Questions The most frames you ever stacked, Why and How?

I have been experimenting and am up to 300,000 stacking every frame, the reason for the...

0 Replies

162 Views

Last post by StarHugger
Sat Apr 12, 2025 4:06 pm
M45 and Friends

Last post by messier 111 « Wed Feb 19, 2025 11:39 pm
Replies: 5
by Chiefsmith » Tue Feb 18, 2025 8:08 pm

First post

I am right in the middle of imaging M45 – complete with the fog bank that is coming through and the “friends” of M45. This would be twice discarded....

Last post

I decided to stack this using Siril rather than DSS. This was done just to see what happens with all of M45's Friends . After a quick post-processing...

5 Replies

1030 Views

Last post by messier 111
Wed Feb 19, 2025 11:39 pm
New version of NoiseXTerminator

Last post by starfield « Sat Feb 01, 2025 6:43 pm

by starfield » Sat Feb 01, 2025 6:43 pm

Russ Crowman just released a new version of NoiseXTerminator. It looks like a pretty significant upgrade. It adds the ability to target low and high...

0 Replies

1092 Views

Last post by starfield
Sat Feb 01, 2025 6:43 pm
How to remove noise in the pictures ?

Last post by OzEclipse « Tue Jan 28, 2025 10:01 am
Replies: 5
by Rosssiiii » Mon Jan 27, 2025 5:56 pm

First post

Hello :)

after have captured 100 lights and 25 dakrs,flat and bias i had that final result:

the camera used is been a canon 50d and...

Last post

So you do you apply LR denoise to all your raw files before importing them into SIRIL? couldn't you work on LR only the final result to denoise it?...

5 Replies

1772 Views

Last post by OzEclipse
Tue Jan 28, 2025 10:01 am
OSC (Vespera V2) - Blending Ha/OIII & SII/OIII

Last post by brenski « Fri Jan 24, 2025 11:25 am

by brenski » Fri Jan 24, 2025 11:25 am

I've just ordered a couple of filters:
• Askar 2 Colour Magic C1 (Ha/OIII) and C2 (SII/OIII) Duo Band Filter Set

I'm intending to use these...

0 Replies

1249 Views

Last post by brenski
Fri Jan 24, 2025 11:25 am
Neat Image v6.1 Pro+, GraXpert, and Topaz AI

Last post by Chiefsmith « Sat Dec 07, 2024 9:07 pm
Replies: 7
by Chiefsmith » Mon Oct 28, 2024 10:38 pm

First post

If you saw my posting on the M45 issue than you know I have been working on noise reduction solutions. Lately these have dealt with GraXpert and...

Last post

The lens mounts on the Samyang lenses are not interchangeable. At least the lens mount on the 135mm and the 21mm are not interchangeable. The Samyang...

7 Replies

2772 Views

Last post by Chiefsmith
Sat Dec 07, 2024 9:07 pm
LRGB Image Blending in PixInsight from Adam Block

Last post by Graeme1858 « Thu Sep 05, 2024 1:14 pm

by Graeme1858 » Thu Sep 05, 2024 1:14 pm

Here's an excellent video on LRGB Image Blending in PixInsight from Adam Block, using a script he put together with Mike Cranfield.

0 Replies

2167 Views

Last post by Graeme1858
Thu Sep 05, 2024 1:14 pm
Can multiple mosaics with some overlap increase integration time?

Last post by bobharmony « Thu Sep 05, 2024 1:14 pm
Replies: 8
by bobharmony » Wed Aug 28, 2024 1:35 am

First post

I first became interested in mosaics after imaging portions of the Cygnus SNR separately, namely the Eastern and Western Veils. I decided to try to...

Last post

A weather miracle happened here this week. A high pressure cell moved into the area and hung on for two consecutive nights, during which I was able...

8 Replies

2706 Views

Last post by bobharmony
Thu Sep 05, 2024 1:14 pm
Quark glare

Last post by Altocumulus « Tue Sep 03, 2024 11:24 am
Replies: 14
by Altocumulus » Thu Aug 29, 2024 8:24 am

First post

A 'standard' Flat was made, using a defocus on a 'quiet' area of the Sun, and used successfully for disc images - (sharpcap used, flat applied...

Last post

I'm wondering if it's an incompatibility between the scope and the telecentric in the quark.

There's a similar spot using a CaK module attached to a...

14 Replies

3535 Views

Last post by Altocumulus
Tue Sep 03, 2024 11:24 am
Speed up PixInsight processes by up to 30%

Last post by yobbo89 « Sun Aug 04, 2024 6:10 pm
Replies: 1
by AstroShed » Sun Aug 04, 2024 8:53 am

First post

This may be useful to PixInsight users, especially with slightly older computers, speed up your PixInsight installation but up to 30% with extra swap...

Last post

i've setup my pixinsight like this a few years ago with multiple swap folders, but never split it on multiple hard drives ,i might have another play...

1 Replies

2523 Views

Last post by yobbo89
Sun Aug 04, 2024 6:10 pm
Flats - What ADU for 16 bit mono camera?

Last post by Tycho65 « Wed Jul 31, 2024 7:20 pm
Replies: 5
by Tycho65 » Fri Jun 14, 2024 4:06 pm

First post

Hi,
I am carrying out narrowband image with Ha and Oiii and Sii filters with a refractor.
I thought it was correct to set the target ADU (16 bit mono...

Last post

Thanks Stuart. I did find the reference to the linear portion somewhere. I might try a bit lower than 50 percent because I find the brightness a bit...

5 Replies

3124 Views

Last post by Tycho65
Wed Jul 31, 2024 7:20 pm
New PI Gradient Removal Tool

Last post by Stuart « Wed Jul 31, 2024 6:05 pm
Replies: 6
by starfield » Sun Mar 03, 2024 7:30 pm

First post

PI has just released a new Gradient Removal Tool. Thought I'd kick off a thread where we can share experiences. Unlike DBE, the tool works without...

Last post

I'm not a fan of it yet. It's kind of a twiddle the sliders until you get what you want.

6 Replies

4120 Views

Last post by Stuart
Wed Jul 31, 2024 6:05 pm
PI WBPP LRGB TIF

Last post by Graeme1858 « Mon Jun 03, 2024 3:40 pm
Replies: 2
by Graeme1858 » Tue May 07, 2024 9:45 am

First post

I captured some M81 and M82 LRGB data for the April Challenge but I forgot to change the default save format as .xisf and all the captures are .tif...

Last post

Sorry I've been away from the group for awhile. Did you debayer the images?

Hello Stuart.

I had forgotten about this one! In the end I...

2 Replies

2775 Views

Last post by Graeme1858
Mon Jun 03, 2024 3:40 pm
Siril script star reduction via Starnet

Last post by Tycho65 « Wed Mar 13, 2024 1:56 pm
Replies: 1
by UkDave » Wed Aug 30, 2023 6:48 am

First post

Deepspace astro on Youtube has written a script for siril that uses starnet, how to install Starnet in Siril this is a pixel math script by bill...

Last post

Thanks Dave,
I managed to get this working on my laptop but my desktop (over 10 years old) cannot work on Starnet++. Its a bit inconvenient as I have...

1 Replies

3803 Views

Last post by Tycho65
Wed Mar 13, 2024 1:56 pm
Exposure times in a stacked image - FITS information?

Last post by Tycho65 « Wed Mar 13, 2024 11:19 am

by Tycho65 » Wed Mar 13, 2024 11:19 am

Hi,
I have a simple question. I have got some files downloaded from a brilliant website, and it has stacked R,G,B and Luminance files. For example...

0 Replies

2889 Views

Last post by Tycho65
Wed Mar 13, 2024 11:19 am
Aligning RGB frames to Luminance frames ?

Last post by Tycho65 « Wed Mar 13, 2024 11:15 am
Replies: 5
by Tycho65 » Fri Mar 01, 2024 11:50 pm

First post

Hi SkySearchers,
I have started mono imaging with a mono camera but have not had much chance to practice due to poor weather since about Sept 2023. I...

Last post

Thanks Kathy,
I managed to get Siril to register and align the files, but the final RGB showed slightly misaligned stars, perhaps because the stars...

5 Replies

3407 Views

Last post by Tycho65
Wed Mar 13, 2024 11:15 am
LRGB imaging ! Exposure length advice please!

Last post by KathyNS « Sat Mar 02, 2024 12:14 am
Replies: 13
by Tycho65 » Fri Jan 05, 2024 5:56 pm

First post

Hi,
I recently bought an Atik 314L+ mono camera (second hand) and am learning APT and autoguiding and plate solving as well. I have got a set of...

Last post

Don't get carried away with exact ratios. Yes RGB should have more exposure than L because the filter is blocking roughly 2/3-ish of the light. And...

13 Replies

5731 Views

Last post by KathyNS
Sat Mar 02, 2024 12:14 am
Creating Keograms

Last post by Old Photons « Sun Feb 25, 2024 11:37 pm
Replies: 14
by AstroBee » Wed Jan 24, 2024 7:00 pm

First post

I just thought I would share this for the group. I recently installed an All-Sky camera on my balcony to capture daily timelapses. Mainly to monitor...

Last post

I like to store a keogram along with my imaging data. It allows me to look at sky conditions to see what was going on when I captured my data. Often...

14 Replies

5279 Views

Last post by Old Photons
Sun Feb 25, 2024 11:37 pm
Another Thread On CMOS and Darks or Bias

Last post by Gordon « Sun Feb 25, 2024 6:42 pm
Replies: 1
by Mike_Lewis » Sun Feb 25, 2024 6:45 am

First post

I read another thread about Despeckling that was talking about the hot topic of CMOS and dark frames. I’m studying an online video series about PI...

Last post

It should be an interesting experiment.

1 Replies

3041 Views

Last post by Gordon
Sun Feb 25, 2024 6:42 pm
Deep Dive on Sub Exposure, Stacking and Gain.

Last post by starfield « Sat Feb 03, 2024 5:31 pm

by starfield » Sat Feb 03, 2024 5:31 pm

I saw this video on the The Astro Imaging Channel (TAIC) the other day and thought it included a very interesting discussion on some of the details...

0 Replies

2680 Views

Last post by starfield
Sat Feb 03, 2024 5:31 pm
Russell Crowman’s BlurXterminator Takes A Massive Leap Forward!

Last post by Stuart « Sat Jan 06, 2024 10:50 pm
Replies: 5
by Juno16 » Fri Dec 15, 2023 1:53 am

First post

RC Astro just released version 2 with AI4 today.

Just when you thought it couldn’t get any better, it just made a phenomenal leap ahead!

I just ran...

Last post

Blur Xterminator is a machine learning driven AI deconvolution tool. It is not a sharpening tool that can be simply duplicated with pixelmath. The...

5 Replies

3957 Views

Last post by Stuart
Sat Jan 06, 2024 10:50 pm

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