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Messages - k

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Wish List / Re: Wishlist for DynamicCrop
« on: 2018 February 13 09:52:42 »
Thanks @dld.
It worked.

Wish List / Re: Wishlist for DynamicCrop
« on: 2018 February 11 10:24:18 »
@dld: Holding ctrl did not work.

Wish List / Wishlist for DynamicCrop
« on: 2018 January 25 02:29:31 »
Hello Juan and Team,
Can you please add the following options to DynamicCrop tool?
1. Aspect ratio: Whenever I want to maintain the aspect ratio, I have to use the calculator. Can you please provide Aspect Ratio as an option?
2. Grids: Can you provide the "rule of third" grids in DynamicCrop?
3. When we select an area to crop, the outside of the crop area should get greyed out, not the inside of the crop area.

Thanks and Regards,

Tutorials and Processing Examples / Solar Corona
« on: 2017 August 10 10:47:19 »
Hello All,
Is there a tutorial or example on processing the solar corona during a solar eclipse using PixInsight?
I want to understand how to align, stack and create HDR solar corona image during the Aug 21st eclipse.

Thanks and Regards,

Wish List / Re: DynamicCrop - Preserve Aspect Ratio
« on: 2017 March 02 07:47:58 »
Hello Juan,
Any progress on this?


Hello Mike,
Sorry for late reply.
Thanks a lot for the explanation. The star mask tutorial is really nice.
You are the best :)


Hi Mike,
Thanks a lot for the parameters. I was able to get similar results with the parameters.
But how did you arrive at mask parameters for the star masks?
TGVDenoise with the parameters given by you dint work properly. It created severe ringing around the stars. So I just omitted this step while processing.
Once again, thanks for your help.


Hello Mike,
Thanks a lot. This is exactly the result I was looking for.
Can you please share the parameters for the star mask? I could not figure it out from the process container.

Hi Dimitris,
Thanks a lot for your reply.
As you can see, there are too many stars in front of the nebula.
Looks like Nebula is buried under the stars.
Is it possible to make the nebula pop up and make stars less bright than the nebula without creating any artifacts?

Hello All,
I need help to process this image. It has lot of stars and nebula is fainer than the stars.
I'm not able to understand how to bring out the nebulosity and reduce the stars.
If I apply Morphological transform, stars reduce to some extent but not much. If I apply multiple times, it results in weird artifacts.
Please help.


Wish List / Re: Does PI support GPU acceleration?
« on: 2017 January 01 22:56:26 »
Thanks jkmorse.
They should at least update their website!

Wish List / Re: DynamicCrop - Preserve Aspect Ratio
« on: 2016 December 27 10:26:37 »
It is really silly that PI does not provide such a basic feature.


Wish List / Does PI support GPU acceleration?
« on: 2016 December 27 10:24:39 »
Hello PI team,
I saw the following on the website.

We plan on implementing GPU acceleration using the CUDA development platform. GPU acceleration will be integrated at a low level with our PixInsight Class Library C++ development framework, so it will be available to the PixInsight core application—including native implementations of JavaScript runtime objects—and most existing tools. Hopefully the first GPU-accelerated versions of PixInsight will become available during 2015. Stay tuned!

Is it already implemented? If not, can you please provide a revised timeline?

Thanks and Regards,

Thanks a lot Alejandro and Wim.
I apologize for the late reply. I re-did the dark frames and it helped reduce the noise by about 50%. Thanks a lot for that suggestion. I will try cosmetic correction as well.
Wim, thanks for the siggestion on dithering. Yes, the stripes are in the same direction as the offset between the frames. I will definitely do dithering next time...

Thanks and Regards,

Hello All,
I shot Virgo galaxy cluster with Canon 1200D and 200mm f2.8 lens. When I stretch the stacked image, there was a lot of thread-like background noise which I'm unable to get rid of. Any tips would be greatly helpful. The image is shared here.

Image Details:
Canon 1200D, Canon 200mmf2.8L
Lights: 40x180s @ f4 @ ISO800
10 darks, 20 flats, 20 bias.
ImageIntegration with Linear Fit Clipping.

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