www.Starry-Night.nl | O'Donoghue | Activity https://www.starry-night.nl/members/todono1x/activity/ Activity feed for O'Donoghue. Fri, 22 May 2026 05:51:19 +0200 https://buddypress.org/?v=4.2.0 en-GB 30 hourly 2 ff122b4279f84bcb21a2db14db0386ab O'Donoghue replied to the topic Large Scale Mosaics in the forum Astro Pixel Processor Beta https://www.starry-night.nl/groups/astro-pixel-processor-beta/forum/topic/large-scale-mosaics/page/2/#post-14071 Thu, 13 Apr 2017 21:24:06 +0200 I ve been trying the triangles and it just hangs up. Not sure why but lots of Array errors.

The settings you suggested in your last mail worked best, but at a lower star amount 10000 was too much and it hung. I think I used 7000 in the end. I have  no RMS values for you at this time. I would need to re run the experiment.

]]> 0 20fcb24374d9e2a16c34720c27e5cdab O'Donoghue replied to the topic Large Scale Mosaics in the forum Astro Pixel Processor Beta https://www.starry-night.nl/groups/astro-pixel-processor-beta/forum/topic/large-scale-mosaics/page/2/#post-13939 Mon, 10 Apr 2017 20:22:48 +0200 Those settings helped on the re run. I m posting the 5×5 image. There is only one area on the right hand side of some star misshape, and one area where there is flaring to the top right of the Pacman nebula. I’ll be able to fix these once stretched.

This is just a simple histo stretch and a small contrast tweak for the screen.

TomLum 25 pane APP…[Read more]

Those settings helped on the re run. I m posting the 5×5 image. There is only one area on the r
]]> 0 207953a3baf6898358284de319d0d365 O'Donoghue replied to the topic Large Scale Mosaics in the forum Astro Pixel Processor Beta https://www.starry-night.nl/groups/astro-pixel-processor-beta/forum/topic/large-scale-mosaics/#post-13751 Mon, 03 Apr 2017 21:17:49 +0200 Hi Mabula,

Previously it took me about 2 -3 weeks to create the base layer, align all files to this base layer, process them to non linear data then stitch and blend in PS.

Now if I can get the settings right, technically only 3 hours Laptop time. This would be fantastic, and would also leave me with linear data. However with experimentation,…[Read more]

]]> 0 acb8333fc08a5090f6caf17db2062a8a O'Donoghue replied to the topic Large Scale Mosaics in the forum Astro Pixel Processor Beta https://www.starry-night.nl/groups/astro-pixel-processor-beta/forum/topic/large-scale-mosaics/#post-13563 Thu, 30 Mar 2017 23:02:35 +0200 That did help in some areas, and made it worse in others. If I blend the two versions together, there is only one area where there is an issue. So Its getting very close to an entire flat, gradient correct, brightness single linear layer, cool.

I can give you some frames about the area where both struggled to blend, but as this is my next big…[Read more]

]]> 0 7b43cde188ee031e04e849f961e64eb0 O'Donoghue replied to the topic Large Scale Mosaics in the forum Astro Pixel Processor Beta https://www.starry-night.nl/groups/astro-pixel-processor-beta/forum/topic/large-scale-mosaics/#post-13546 Thu, 30 Mar 2017 18:48:30 +0200 My method for my two Mega Mosaics, Orion and the Galactic Centre were to make a base layer in PI with their Star Alignment, process. The GMM process which can make a mosaic from the Star Alignment base layer did not work for me. It left halos on stars, dark holes, distortions etc.

So I let the SA process register and build the base layer. Then I…[Read more]

]]> 0 928e8469b0b22f7ff2927bd45bcd302f O'Donoghue replied to the topic Large Scale Mosaics in the forum Astro Pixel Processor Beta https://www.starry-night.nl/groups/astro-pixel-processor-beta/forum/topic/large-scale-mosaics/#post-13545 Thu, 30 Mar 2017 18:40:38 +0200 Mabula,

Yes I like to get straight in there and test the big mosaics 🙂

I don’t quite understand the Thin Plate Spline bit. That sounds like a method to calculate the registration for the panels.

So let me mention where the frames came from

1) FITs were calibrated in AstroArt 5 with Darks and Flats applied here to stack the master 4 hr…[Read more]

]]> 0 f55b7084ff0073ad1489548bb4795ea1 O'Donoghue replied to the topic Large Scale Mosaics in the forum Astro Pixel Processor Beta https://www.starry-night.nl/groups/astro-pixel-processor-beta/forum/topic/large-scale-mosaics/#post-13502 Wed, 29 Mar 2017 21:54:11 +0200 Here is the 25 pane version, used with the DBE files. Very good blending result for brightness, gradients and detail.

Two areas of overlapping show star distortion.  Whether these can be joined without issues by other settings I m noy sure yet. More testing to do.

This took 3 hrs on the laptop to put t…[Read more]

Here is the 25 pane version, used with the DBE files. Very good blending result for brightness, grad
]]> 0 043f457de5c91cbcfb7bebcc9d54f0f6 O'Donoghue replied to the topic Large Scale Mosaics in the forum Astro Pixel Processor Beta https://www.starry-night.nl/groups/astro-pixel-processor-beta/forum/topic/large-scale-mosaics/#post-13482 Wed, 29 Mar 2017 18:14:45 +0200 Let me try that initial image again16-pane-Lum-DBE-test-2k

Let me try that initial image again16-pane-Lum-DBE-test-2k
]]> 0 7fe94a6843fda694c63efd54437f73c7 O'Donoghue replied to the topic Large Scale Mosaics in the forum Astro Pixel Processor Beta https://www.starry-night.nl/groups/astro-pixel-processor-beta/forum/topic/large-scale-mosaics/#post-13480 Wed, 29 Mar 2017 18:13:08 +0200 Zoomed in version.

I stretched the final image to show the Non linear version.16-pane-Lum-zoom-registration

Zoomed in version. I stretched the final image to show the Non linear version.16-pane-Lum-zoom-regis
]]> 0 3988e55a2b60829341e8e400db522094 O'Donoghue started the topic Large Scale Mosaics in the forum Astro Pixel Processor Beta https://www.starry-night.nl/groups/astro-pixel-processor-beta/forum/topic/large-scale-mosaics/ Wed, 29 Mar 2017 18:12:26 +0200 Here is an initial 16 pane mosaic. I used files created in Pixinsight. This time I used ones that I had performed the DBE on, so the gradients were removed, but kept the files in Linear mode.

The joining looks really good, except for two areas where the stars are streaked. 2 images attached to test.

I m going to try a 6×6 full frame stitch later.

]]> 0 fecf634228a4677b7ddd6e73d30d4cd1 O'Donoghue changed their profile picture https://www.starry-night.nl/activity/p/14120/ Mon, 13 Feb 2017 19:35:25 +0100 0 6a2d0ca5598a326b0093a0218cf34edd O'Donoghue joined the group https://www.starry-night.nl/activity/p/14116/ Mon, 13 Feb 2017 19:22:47 +0100 0 d312b111ba18bb2a65a5a4d3c50db9b7 O'Donoghue became a registered member https://www.starry-night.nl/activity/p/14111/ Mon, 13 Feb 2017 19:18:25 +0100 1