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Messages - jtalbot

Pages: [1] 2 3 ... 5
1
New Scripts and Modules / Re: StarNet - new module for star removal
« on: 2019 November 12 08:05:41 »
Awesome,
Thank you Nikita...

Jon

2
Gallery / NGC 7822 in Cepheus
« on: 2019 October 16 07:37:53 »
A recent image of NGC 7822 in Cepheus.

http://www.starscapeimaging.com/NGC%207822/NGC7822.html

Clear Skies

Jon Talbot

3
Bug Reports / Re: FITS header issues when creating RGB image
« on: 2019 October 15 08:21:37 »
Hi Juan,

Thanks for the great support.....

Jon

4
Bug Reports / Re: FITS header issues when creating RGB image
« on: 2019 October 15 08:11:07 »
Hi Dave,
Exactly, the camera does report it correctly in the FITS header.  Something is being changed in calibration or image integration or channel combination or all.  Check out the files I uploaded and look at the FITS header.  Then create a RGB image and again look at the FITS header.

Jon

5
Bug Reports / FITS header issues when creating RGB image
« on: 2019 October 15 07:37:06 »
Juan,
I've been working on processing an image using PI 1.8.7 on a IMac using the latest updates/bug fixes.   Yesterday after creating some master RGB images through the BPP script I combined them to a RGB image using Channel Combination.  I then went to photometric color calibration and the image failed to plate solve many times and PCC failed.  After thinking about this I looked at the FITS header of the RGB combined image.  The values in the OBSGEO-L, LONG-OBS, LAT-OBS, OBSGEO-H, ALT-OBS were wrong.  What caught my eye was the LONG-OBS value of +140.  I took the images at a star party at the Long of 102deg West.  After looking some more I noticed the LAT-OBS was wrong too as were other fields.   I ended up editing the FITS header with data from the master Red image and magically it worked and the image plate solved and color calibrated.  I'm not sure if this is a bug or not but this is the first image I've processed with the new version of PI from scratch with the exception of a DSLR image which didn't include this info. I've never experienced this issue before.  I've included a link to my dropbox with the master R, G, and B frames which were created using Image Integration if anyone wants to see if they can reproduce this.  Check out the FITS header of the RGB image.  I also included three single calibrated Red, Green and Blue frames and three uncalibrated Red, Green and Blue frames.  I'm not sure the FITS info is computing correctly during calibration and then RGB combination.

https://www.dropbox.com/sh/c7p7sqk3utjh45d/AACBuy6oJwjgZwtdWJHCfYQka?dl=0

Jon

6
Announcements / Re: PixInsight 1.8.7 Released
« on: 2019 October 02 14:38:25 »
Juan,

Thanks so much for all your hard work with this major release.  I'm looking forward to the upcoming new mosaic tool. 

Jon

7
Gallery / VdB123
« on: 2019 September 02 14:16:55 »
Attached is an image I recently completed of VdB 123 and the Serpens molecular cloud.   This image was particularly challenging due to my hot, humid, sea level site and light polluted sky.  Image acquisition details are on the page.
http://www.starscapeimaging.com/VdB123/VdB123.html

Jon

8
General / Re: Re-insert stars in starless image
« on: 2019 August 07 10:18:22 »
Hi Joel,
This seems like a complicated problem.   Just a thought.  One thing that may work but take a bit of work is to create your stars image which also has the arc in it.  Make a copy and binarize that to the point where the fainter stars around the arc disappear. At that point you could clone out the rest of the stars (make the rest of the image black).  Now you have a mask that just includes the arc.  Maybe subtract this from the stars image to get an image of just the stars without the arc which you could add back into your starless image.  It may take a bit of finessing the mask to get it to work perfectly since I see thee are stars within the arc.

Jon

9
A truly creative technique Adam.  I've enormously enjoyed your video series PixInsight Horizons.  Even though I've been a user for many years I learn something new every time from your video tutorials as they show ways to handle data in ways I never would have thought.  Thanks for sharing this to the rest of the community.

Jon

10
Hi Juan,

Thats excellent news.  1.8.6 has been working and hasn't crashed but glad you were able to find the bug.

Best Regards,

Jon

11
Juan,
In the process console I'm seeing a lot of "red" Critical Signal violation messages and after that happens, Icons within PixInsight 1.8.6 start acting funny and sometime disappear.  No crashes  yet but something is up with the QT core. This is happening every time I run PixInsight after installing 1.8.6.   System is a IMAC 5K late 2015, Intel Core I7 4GHZ, 32 gb of Ram.  See attached.

Best,
Jon

12
I will be presenting a two day PixInsight workshop at the 2018 Okie Tex Star Party in Oct.  If you are attending Okie Tex there are a few spots left.  If you want to get in on the workshop see this link.  http://www.okcastroclub.com/phpBB2/viewtopic.php?t=4034

13
Hi Frank,
I basically followed a technique similar to the link Rick posted.  My technique wasn't quite as involved, or as good, as what is in the link however it seemed to work just fine.
Again, thanks for a great script.

Best,
Jon

14
Gallery / Re: Flaming Star Nebula area
« on: 2018 January 08 09:12:00 »
Thanks Rick!

15
Hi Warren,

Thanks for the reply.  I actually have been very successful with photometric color cal since I posted the question.  I think I must have just done something wrong the first time I tried it.  Its worked just fine ever since and I used it on all my images since summer.

Best,

Jon

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