Uploaded March 2023 | Updated September 2026, 3 weeks ago
Instructor: Dr. Christian Sasse, Astronomer-in-charge of iTelescope
Summary: In this instructional video, you will learn how to process mosaic images using Astro Pixel Processor (APP) (Astro Pixel Processor). We suggest downloading the latest version of APP V2.0 Beta14 (astropixelprocessor.com/community/release-information/astro-pixel-processor-2-0-0-beta14-release-notes/). As an additional gift for participating in this instructional video, iTelescope has made the entire image set for you to follow along and build your own mosaic dropbox.com/t/YC4GiJCtKsgLBdVz.
The image set is 2x2 panels of the Large Magellanic Cloud (LMC). The images are in two folders: the Images folder has the entire set of 120 subs in RGB and SHO for a total exposure time of 7 hours. The demo folder has an RGB image for each panel which Christian uses in the video to speed up the processing time. NB. Give yourself time to download the image set since it is over 13GB.
This is Part 1 of the instructional video, where Dr. Sasse walks you through the setup process for building that stacked images within APP. In Part 2 of the instructional video, Christian finalizes the mosaic image.
This is a wonderful opportunity to learn advanced image processing using APP. Furthermore, thanks to iTelescope, you get a huge and complete image set to build for yourself a 2x2 mosaic of the LMC in RGB and SHO. We hope you enjoy it!
IF YOU POST THIS MOSAIC, PLEASE GIVE CREDIT TO iTelescope
itelescope.net
Astro Pixel Processor astropixelprocessor.com
Link to download images. IF YOU POST THIS MOSAIC, PLEASE GIVE CREDIT TO iTelescope
itelescope.net
Chapters
0:00 Introduction
2:59 APP Overview description.
5:10 choosing your working directory
5:25 Download folder descriptions
6:15 New folder creation — workflow directory
6:50 Disable multi-session processing
7:05 Giving your project a name
7:28 Loading images
8:33 Ignore the pop-up window
8:44 Repeat the loading process for each folder
10:22 Processing cheat sheet (see below)
12:15 Skip tab 2 (calibrate)
12:21 Tab 3 Analysis Stars
12:41 Registration - Switch Mode to mosaic.
13:13 Understanding Scale Start and Stop
14:50 Enable Use dynamic distortion correction
15:30 Start registration, disable same camera and optics
16:44 Understanding the frame list panel
18:00 Tabe 5 Normalization, change to advanced mode
18:54 Opening an image — using the preview window
21:40 Tab 6 Integration — Change filter to median or leave it on automatic.
22:19 Understanding Local Normalization Correction
23:15 Understanding Multiband Blending
24:19 Setting the Name of the Object
26:32 Seeing the first mosaic
26:52 Stretching the preview window
27:36 What to do if the mosaicing does not work
28:36 Individual stacking of panels
29:00 Naming each panel
29:47 Jumping straight to Integration
30:50 Repeat for the remaining three panels — close APP between each panel
35:40 Looking at the completed work directory
36:14 Assembling the individual four panels
36:55 Tab 4 Registration
41:05 Composited image
Cheat Sheet
- First, try to run all panels together
- Set (Tab 4) Register
- Change registration mode from normal to mosaic
- Use Dynamic Correction (answer yes if asked)
- Use Same Camera and Optics (answer no if asked)
- Set (tab 5)N normalize mode to advance
- Set (tab 6) Integrate
- Integrate median (it is better for image qualities less than 20 per channel and pane)
- Local normalization correction 1st-degree LNC
- Enable MBB (multi-band Blending, each color is blended) Slider to 10%
If this fails, first integrate panel by panel, then with all integrated panels together and run above.
#iTelescope
#astrophotography
#deepsky
#astro
#astronomy
#cosmology
Instructor: Dr. Christian Sasse, Astronomer-in-charge of iTelescope
Summary: In this instructional video, you will learn how to process mosaic images using Astro Pixel Processor (APP) (Astro Pixel Processor). We suggest downloading the latest version of APP V2.0 Beta14 (astropixelprocessor.com/community/release-information/astro-pixel-processor-2-0-0-beta14-release-notes/). As an additional gift for participating in this instructional video, iTelescope has made the entire image set for you to follow along and build your own mosaic dropbox.com/t/YC4GiJCtKsgLBdVz.
The image set is 2x2 panels of the Large Magellanic Cloud (LMC). The images are in two folders: the Images folder has the entire set of 120 subs in RGB and SHO for a total exposure time of 7 hours. The demo folder has an RGB image for each panel which Christian uses in the video to speed up the processing time. NB. Give yourself time to download the image set since it is over 13GB.
This is Part 1 of the instructional video, where Dr. Sasse walks you through the setup process for building that stacked images within APP. In Part 2 of the instructional video, Christian finalizes the mosaic image.
This is a wonderful opportunity to learn advanced image processing using APP. Furthermore, thanks to iTelescope, you get a huge and complete image set to build for yourself a 2x2 mosaic of the LMC in RGB and SHO. We hope you enjoy it!
IF YOU POST THIS MOSAIC, PLEASE GIVE CREDIT TO iTelescope
itelescope.net
Astro Pixel Processor astropixelprocessor.com
Link to download images. IF YOU POST THIS MOSAIC, PLEASE GIVE CREDIT TO iTelescope
itelescope.net
Chapters
0:00 Introduction
2:59 APP Overview description.
5:10 choosing your working directory
5:25 Download folder descriptions
6:15 New folder creation — workflow directory
6:50 Disable multi-session processing
7:05 Giving your project a name
7:28 Loading images
8:33 Ignore the pop-up window
8:44 Repeat the loading process for each folder
10:22 Processing cheat sheet (see below)
12:15 Skip tab 2 (calibrate)
12:21 Tab 3 Analysis Stars
12:41 Registration - Switch Mode to mosaic.
13:13 Understanding Scale Start and Stop
14:50 Enable Use dynamic distortion correction
15:30 Start registration, disable same camera and optics
16:44 Understanding the frame list panel
18:00 Tabe 5 Normalization, change to advanced mode
18:54 Opening an image — using the preview window
21:40 Tab 6 Integration — Change filter to median or leave it on automatic.
22:19 Understanding Local Normalization Correction
23:15 Understanding Multiband Blending
24:19 Setting the Name of the Object
26:32 Seeing the first mosaic
26:52 Stretching the preview window
27:36 What to do if the mosaicing does not work
28:36 Individual stacking of panels
29:00 Naming each panel
29:47 Jumping straight to Integration
30:50 Repeat for the remaining three panels — close APP between each panel
35:40 Looking at the completed work directory
36:14 Assembling the individual four panels
36:55 Tab 4 Registration
41:05 Composited image
Cheat Sheet
- First, try to run all panels together
- Set (Tab 4) Register
- Change registration mode from normal to mosaic
- Use Dynamic Correction (answer yes if asked)
- Use Same Camera and Optics (answer no if asked)
- Set (tab 5)N normalize mode to advance
- Set (tab 6) Integrate
- Integrate median (it is better for image qualities less than 20 per channel and pane)
- Local normalization correction 1st-degree LNC
- Enable MBB (multi-band Blending, each color is blended) Slider to 10%
If this fails, first integrate panel by panel, then with all integrated panels together and run above.
#iTelescope
#astrophotography
#deepsky
#astro
#astronomy
#cosmology
