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Messages - jkmorse

Pages: [1] 2 3 ... 62
1
General / Re: Superluminance with Drizzle
« on: 2020 January 19 10:59:17 »
If you used drizzle on the RGB channels, then there is no need to do a second drizzle when creating the SuperLum.  It already has the drizzle applied to the underlying RGB channels and doing it a second time will add nothing.  If fact, you may be hurting your image since each time you star align you introduce artifacts.  You should only star align once for all subs.

Best,

Jim

2
Wish List / Re: Paint Brush type tool to adjust masks
« on: 2020 January 19 10:53:40 »
You can use a combination of CloneStamp and the GAME script to achieve quite a bit.

Best,

Jim

3
General / Re: Removing Dust Donuts using GAME Script
« on: 2020 January 12 07:11:42 »
Not sure, but why would you need to?

4
General / Re: Removing Dust Donuts using GAME Script
« on: 2020 January 11 11:04:09 »
Hey Jim, you been in the desert to long, everything looks like a sandbox.... ;)

John

So so true!

5
General / Re: Removing Dust Donuts using GAME Script
« on: 2020 January 10 12:52:06 »
Thanks!  Pixinsight is just a big sandbox to play in  :D

6
General / Re: Fatal Error V1.8.8.3
« on: 2020 January 07 16:18:58 »
Juan,

I have had this happen fairly regularly but only when running Vicent's Pattern Subtraction scripts.  That may help isolate the issue.  I am running on an HP Spectre x360 laptop, running Windows 10 home, Version 10.0.17763 Build 17763.

Best,

Jim


7
General / Re: Huge reflection halos!
« on: 2020 January 06 18:02:25 »
I just posted a way to remove dust donuts and there is no reason the technique I describe here: https://pixinsight.com/forum/index.php?topic=14538.0 wouldn't work for your issue as well. 

Worth a shot  ^-^

Best,

Jim

8
General / Removing Dust Donuts using GAME Script
« on: 2020 January 06 17:51:24 »
Hey folks,

Been playing around with some of my images that have noticeable dust donuts where I sometimes do not have corresponding flats.  I have seen a few different suggestions on how to work to remove donuts, some using the GAME script, but I think I have hit on, what for me, seems a novel solution (although its probably been mentioned in various posts a dozen times that I have simply missed). 

Assuming others would find this helpful, here is my solution. 

1.  Open the offending image and then open the GAME script. 
2.  Assuming the image is still linear, click on "STF" in the upper right hand corner of GAME to view the image. 
3.  Zoom in the image in the GAME window to the maximum extent possible.
4.  Draw a new circle, closely matching the outside of the donut and check the gradientedge option.
5.  Generate the image and rename DonutMask_1.
6.  Reopen GAME and repeat the process, but this time draw the circle so that it covers the inside of the donut.
7.  Again, using gradientedge, generate the image and rename it DonutMask_2.
8.  Open PixelMath and simply subtract DonutMask_2 from DonutMask_1 and rename the end image DonutMaster.
9.  Save the mask until you complete your delinear stretch, then apply the mask to the stretched image. 
10. Do a mild Histogram midtone stretch until the donut disappears (it may take a bit of trial and error).

I have attached below a screen shot showing the before and after results, along with my DonutMaster mask.

Hope it helps,

Best,

Jim


9
New Scripts and Modules / Re: Pattern subtraction scripts
« on: 2020 January 03 11:19:45 »
Vicent,

Just wanted to thank you for this incredibly useful script.  I just switched to a used FLI Microline 16803 which is a great CCD except for the obvious vertical pattern defects, especially a prominent one almost dead center in the chip.  It was a painstaking chore to fix this by conventional methods but the scripts cure the defects without a hitch.  I simply created a master defect map and now apply it to every sub image to clean them to near perfection.

Thanks so much for this and all your other great work.  It is highly appreciated.

Best,

Jim

10
Announcements / Re: Some unfair comments
« on: 2020 January 03 08:17:46 »
Juan,

Please know that there are a host of your users, myself especially included, who would not know what to do without you and your continuing efforts to improve your awesome product.  As you know, I have been producing a PI workbook for years now and continue to get requests for it from new users regularly who are discovering everything PI has to offer.

As a user for years now, I would also welcome the opportunity to do any beta testing that may be necessary.

As others have said already, those who appreciate your efforts scoff at those who, without any understanding of all you do, question updates that continue to make PI the only real option for serious astrophotographers.

Best regards,

Jim 

11
New Scripts and Modules / Re: Pattern subtraction scripts
« on: 2019 October 14 15:43:40 »
Vincent,

Great script, as usual.  One question.  I did not see any definition of the imageShift parameter.  What criteria should I use to modify that value?

Thanks,

Jim

12
General / Re: Converting image to non linear.
« on: 2019 October 14 07:39:42 »
Tom,

It might just look like a double stretch because you haven't turned off STF.  Before or after stretching (it really doesn't matter) simply shut off STF and everything should look fine.

Jim

13
General / Re: Can't create proper stretched image
« on: 2019 October 14 07:34:10 »
John,

Another way forward that is easy to get the image to match what you see in the linear form is to open ScreenTransferFunction (STF) and HistogramTransform (HT).  Make sure the image you are interested in is highlighted with a blue band around it and that you have selected it in HT.  Then grab the little triangle at the bottom left on STF and drop it onto the bottom bar on HT.  Then simply apply HT to the image by dragging the little triangle at the bottom left of HT onto the image.

If you are interested I have a workbook that I freely share that should help you get through the starting jitters.  If interested just drop me a note at jkmorse57@gmail.com.

Hope that helps.

Jim 

14
Mike,

Just a new thank you.  I was struggling using MureDN with my SBIG 6303E but I has recently switched it out for an FLI Microline 16803 and Mure is working beautifully again.  It is just a just a joy using such a well designed script.

Best,

Jim

15
General / 11002 vs 6303E
« on: 2018 September 04 15:30:20 »
Hey folks,

I have been shooting with an SBIG STXL 6303E for some time now and while it has great sensitivity, dealing with the blooms is, frankly, a royal pain in the behind.  Since I am not and will not be doing astrometry, using a CCD with an anti-blooming gate is not really an issue.  In order to control costs, I want to stay in SBIG’s STXL line so I can use the same filters, filter wheel and AOX set up.  That means I am looking at the 11002, mainly due to chip and pixel size.

Can folks who use the 11002 give me their thoughts and also would love to hear from anyone who has experience with a direct comparison.

Thanks all,

Jim

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