ImPPG - Image Post-Processor

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GreatAttractor
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ImPPG - Image Post-Processor

Post by GreatAttractor » Sat Feb 21, 2015 10:28 pm

ImPPG performs Lucy-Richardson deconvolution, unsharp masking, brightness normalization and tone curve adjustment. It can also apply previously specified processing settings to multiple images. This time everything is wrapped in a full-fledged GUI, whose operation should be familiar to most amateur astrophotographers.

Some of the interface features:
- freely adjustable processing area (selection) within the image
- non-blocking operation; if you change the selection, previously started processing (if any) aborts and begins for the new selection
- for moderately small selections the application of Lucy-Richardson deconvolution is almost instanteneous, which allows for convenient fine-tuning of the "Sigma" parameter
- tone curve editor with helper functions (invert points horizontally to create a negative; stretch the curve to cover the histogram only)

Screnshots:
scr1.png
scr2.png
scr2.png (19.8 KiB) Viewed 3589 times
scr3.png
scr3.png (30.73 KiB) Viewed 3589 times
The "Prevent ringing" function is highly experimental and may not help in all cases. It aims to reduce ringing around overexposed areas (e.g. a solar disc in a prominence image); it does work quite well in the case I devised it for:

no deringing:
noder.png
noder.png (9.17 KiB) Viewed 3589 times
deringing enabled:
wder.png
wder.png (8.92 KiB) Viewed 3589 times
but your mileage may vary.

For now only BMP and uncompressed TIFFs (8- and 16-bit) are supported, but I'll add support for more formats (including FITS) soon. The program can be built on any platform which has a C++ compiler supporting Boost and wxWidgets libraries, including Linux (which I use on my laptop) and OS X. As usual, additional details can be found in the README file.

ImPPG is free & open-source, licensed under GNU GPL v3 (or later). Source code and Windows version (32- and 64-bit) can be downloaded from:
http://stargazerslounge.com/blog/1400/e ... processor/


All the material shown in http://solarchat.natca.net/viewtopic.php?f=4&t=14937 has been processed by ImPPG.
My software:
Stackistry — an open-source cross-platform image stacker
ImPPG — stack post-processing and animation alignment
My images

SW Mak-Cass 127, ATM Hα scope (D=90 mm, LS50 etalon), Lunt LS50THa, ATM SSM, ATM Newt 300/1500 mm, PGR Chameleon 3 mono (ICX445)

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Re: ImPPG - Image Post-Processor

Post by grimble_cornet » Sat Feb 21, 2015 10:40 pm

Looks like a great front-end to what was already a very impressive bit of software :bow2
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Mike Garbett

Selection of Solar and Deep Sky images on Flickr: https://www.flickr.com/photos/mikegarbett/

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Re: ImPPG - Image Post-Processor

Post by swisswalter » Sun Feb 22, 2015 4:06 pm

Hi Filip

thank you so much. I'll have a go with it for sure
Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

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Re: ImPPG - Image Post-Processor

Post by marktownley » Sun Feb 22, 2015 4:28 pm

an excellent resource, i shall have to give it a try! :)
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http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

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Re: ImPPG - Image Post-Processor

Post by swisswalter » Sun Feb 22, 2015 5:00 pm

Hi Filip

it works (tested it on a SAFIX test shot from friday) , but I do not understand it yet :oops:

imppg_64.jpg
Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)

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Re: ImPPG - Image Post-Processor

Post by GreatAttractor » Sun Feb 22, 2015 5:46 pm

Walter, all there's really to do is play with the sliders ;)

Of course, if anything is unclear, please post your questions here.
My software:
Stackistry — an open-source cross-platform image stacker
ImPPG — stack post-processing and animation alignment
My images

SW Mak-Cass 127, ATM Hα scope (D=90 mm, LS50 etalon), Lunt LS50THa, ATM SSM, ATM Newt 300/1500 mm, PGR Chameleon 3 mono (ICX445)

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Re: ImPPG - Image Post-Processor

Post by robert » Sun Feb 22, 2015 6:37 pm

Thanks! I have downloaded it and will have a try
Robert
images and animations http://tinyurl.com/h5bgoso
2018 images https://www.flickr.com/photos/69734017@ ... 1234171714
2017 images http://tinyurl.com/gvk9k3k
ED80. SW200. ES127. Celestron-150mm-PST mod
LS60PT-LS60F-B1200. B600-Cak. PGR-Ch3-IMX265

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Re: ImPPG - Image Post-Processor

Post by michael.h.f.wilkinson » Mon Feb 23, 2015 7:25 pm

I have been a great fan of ImPP for my mosaics, so I will give this further development a try as soon as I can.
Solar kit: GP-C8 with Thousand Oaks Solar filter, APM 80mm F/6, Lunt Herschel Wedge, Solar Spectrum 0.3Å H-alpha filter, Beloptic Tri-Band ERF (80mm free aperture), Thousand Oaks 90mm ERF, Coronado SolarMax II 60mm with Double Stack Unit. Lunt straight B1800 Ca-K module.

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Re: ImPPG - Image Post-Processor

Post by GreatAttractor » Tue Feb 24, 2015 11:09 pm

New version: 0.1.1
Bug fixes:
– Blank output files after batch processing when L-R iterations count is 0

Download from: http://stargazerslounge.com/blog/1400/e ... processor/
My software:
Stackistry — an open-source cross-platform image stacker
ImPPG — stack post-processing and animation alignment
My images

SW Mak-Cass 127, ATM Hα scope (D=90 mm, LS50 etalon), Lunt LS50THa, ATM SSM, ATM Newt 300/1500 mm, PGR Chameleon 3 mono (ICX445)

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Re: ImPPG - Image Post-Processor

Post by swisswalter » Wed Feb 25, 2015 5:45 am

Thank you Filip
Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)

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