LTImage

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Tony
LTImage

I've loaded LTImage but I don't know how to create a 3-color image with it.


NSOJenny
RE:LTImage

Hi Tony. There are screencasts and step-by-step text guides to help you use LTImage. If you follow this link and scroll down the page you'll see one for '3-Colour Imaging, Alignment, Shade and Contrast'. Hope that helps! -- Jenny

https://www.schoolsobservatory.org/help/ltimage/screencasts

Tony
RGB

Thank you. But that is about RGB instead of RVB. I got RVB images from the telescope but I can't process it with RGB 3 colored. I tried V as G but it don't look right.

NSOAndy
Hi Tony

Hi Tony

The wavelength range of the V filter is pretty close to the range that the eye sees as green, so it should work well. It may be that the exposure times are not quite optimal (different filters can take different lengths of time to get good images). Could you share the colour picture you have got with us? And let me know what the ID numbers of the three images are, so I can experiment a bit?

Andy

Tony
Thank you

Thank you or your kind advice and your time. The ID is 17741. Again, thank you. I highly appreciate this system. This system is very fast and can get response very quickly and also get high quality images. Keep going!

NSOAndy
Hi Tony - "17741" doesn't

Hi Tony - "17741" doesn't seem to be the ID any observations. Are you sure that is correct?

 

Tony
187741

Goodness! I typed it wrongly. Sorry. I wish you can accept my apologize. Thank you for your help.

NSOAndy
It seems to be OK

That's the one! Thanks.

I've had a quick go at making a 3-colour image with that data and it seems to work fine:

You should be able to do better with a bit more adjusting and tweaking, but if you want to get to this stage, I set up the three colours like this:

  • Red image: 18774I000, Colour from 0.0 to 5500.0
  • Green image: 18774I001, Colour from 0.0 to 5000.0
  • Blue image: 18774I002, Colour from 0.0 to 2500.0

All the best
Andy

 

Tony
Thank you

Now I know how, I guess. Thank you pretty much for all these time and also thank you for this short tutorial.

love from Taiwanese user,

Tony

Tony
Sorry to bother you again

Sorry to bother you again, but I really wanna ask. I just changed to using a Lubuntu environment computer and I can't find a version of LTImage for it. Where can I get a Lubuntu one? I really love using LTImage.

NSOStacey
Never a bother

Hi Tony - it's never a bother to hear from our users!

Yes I am sorry that currently LTImage is only compatible with Windows machines (as most schools use Windows) but can be run through Windows emulators on other machines. However - it is an old piece of software and there may be more and more issues running the software on more up-to-date systems which are not Windows-based. 

I'm sorry that we don't have the capacity to keep up to date with all of the different possible set ups. However - we are currently working on a replacement LTImage which will be browser-based and therefore not have these issues. We are hoping that it will be released in the next year but don't have a launch date yet - we'll keep you updated when we do.

In the meantime please see this page which has the information about system requirements for LTImage: https://www.schoolsobservatory.org/obs/software/ltimage - I hope that you are able to run the software somehow in the meantime.

Failing that the other software we recommend which is free to use (but not as user-friendly as we have written ours specifically for non-professional astronomers) is Makali'i (https://www.schoolsobservatory.org/discover/projects/clusters/makalii) which we have some video tutorials on too.

Sorry that we can't be more use!

Best wishes, 

Stacey