reprocessed Jupiters...

bird (Anthony Wesley) · #1 24-05-2005, 08:22 PM

I'm finally getting the hang of this new lcd monitor, but it's made me change my processing habits. The old images really don't look very good on a sharp monitor, too many artifacts are visible.

Here's an image from last month, reprocessed so that it looks "better". There's also something different about the processing here, I didn't use registax wavelets at all, instead I cranked up the deconvolution a lot more to compensate. The experiment is to see if I preserve more info this way...

regards, Bird

fringe_dweller · #2 24-05-2005, 09:11 PM

Man oh man - you raise the bar very high Bird - only a bird could fly over it

It is a worry with the monitor designs all over the place - i am still using a 6 year old mitsi flat screen 17" CRT and its looks very, very good indeed.
Fringey

Astroman (Andrew Wall) · #3 24-05-2005, 09:14 PM

I see you have borrowed Hubbles optics again. Hell thats a nice image, without being too picky the onion skin effect is a little of a put off. Not much there but just enough to be annoying. (Or is this the layers of Jupiters Atmosphere

) The colours look quite nice, although not sure but seem a little pink. The detail between, and on the bands are the best I have seen from amature equipment, this is one image that should make it into a good Australian Astronomy Magazine.

Have you any more details on how many frames etc... you used?

bird (Anthony Wesley) · #4 24-05-2005, 09:32 PM

Yeah, there are still some artifacts visible in the image, but this was as far as I felt I could push it. The real limitation is my camera, it has Issues - e.g. it gives only 128 grey levels instead of 256, has lots of noise etc. Someday I'll replace it, and that should help a lot.

The colour is probably not quite right, maybe a bit too red/brown, cause of my new lcd screen and the way is shows colours. I'll probably have to fiddle with the settings a bit more on it.

Equipment details:

10" f/6 newtonian, Deep Sky Optics primary mirror
4x TV powermate
fire-i mono camera
Astronomik RGB filters + TruTek filter wheel

Stacked best 500/800 frames in each of R,G,B.

Software: Coriander for Linux to capture the data, Registax & Astra Image under Win2k for processing.

Thanks for the comments :-)

Bird

bird (Anthony Wesley) · #5 24-05-2005, 09:40 PM

mmm, if you want to see what I'm aiming to compete with, have a look at this:

http://www.buytelescopes.com/gallery...o.asp?pid=5420

I still have a long way to go :-)

Bird

seeker372011 (Narayan) · #6 24-05-2005, 09:59 PM

Quote:

Originally posted by bird
mmm, if you want to see what I'm aiming to compete with, have a look at this:

http://www.buytelescopes.com/gallery...o.asp?pid=5420

I still have a long way to go :-)

Bird

well to my admittedly untutored eye I must say it doesn't seem all that far from what you consistently produce

ving (David) · #7 24-05-2005, 10:14 PM

well your speeling is better than thiers!!

Quote:

Jupiter fron French Polynesia

well done bird!

[1ponders] (Paul) · #8 24-05-2005, 11:03 PM

Have you and Leroi been swapping secrets bird. You're shot blew me away. Then I had a look at that link From a TOUCAM!!!. Blew me right out of the water. At least everyone now has someone to aspire to. But were more fortunate. We've got you here in our hot little hands. I know I've asked before but please, please, PLEASE, can you do a "how to" review on using Astra image. I've tried it and just keep getting frustrated.

Astroman (Andrew Wall) · #9 25-05-2005, 06:39 AM

hmm don't know 10" v's 14" A little bit more detail on the C14, yes. But I think if you do get a better camera, I think you will be right there with the C14.

bird (Anthony Wesley) · #10 25-05-2005, 08:44 AM

Quote:

I know I've asked before but please, please, PLEASE, can you do a "how to" review on using Astra image. I've tried it and just keep getting frustrated.

Ok, maybe I'll write something up. btw I tried to go to the website of the software developers for Astra Image (www.phasespace.com.au) but that site doesn't seem to be working anymore.

I wonder if they are still in business?

I've just run across another package that looks like it might also be good - AstroArt. It's a bit $$$ ($275 aussie dollars) but it has some nice features, like reading 32 bit FITS files, RL deconvolution, etc.

I'm going to blow the budget and buy a copy to try out. They have a demo version that's free, but it's missing a few things.

AstroArt has one BIG positive - it's extensible, and comes with a free SDK (Software Developers Kit). Something that bugs me about our existing tools like Registax is that I can't jump in and fix it's bugs (and there are still many). At least with this package I might be able to write plugins to implement some of my ideas.

regards, Bird

Mick (Michael) · #11 25-05-2005, 08:48 AM

Wonderful image, don't know how you do it but you are a image jedi.

fringe_dweller · #12 25-05-2005, 08:37 PM

Quote:

Originally posted by bird
mmm, if you want to see what I'm aiming to compete with, have a look at this:

http://www.buytelescopes.com/gallery...o.asp?pid=5420

I still have a long way to go :-)

Bird

wow they must have some awesome seeing there!? those huge 14inch SCT's do some great work -Cheers
Fringey

ErwinvdVelden · #13 27-05-2005, 12:06 AM

Bird,

I like your first version more, this one is too 'bubbly' instead of 'spotty'.

Leroi's images does not only have a high resolution, but are also very wel processed with very few artefacts, albeit a bit yellowish in my opinion.
It is also a nice demonstration that aperture does matter, as long as the seeing co-operates.

What also surprises me is that the optimised mode shows less posterising than the normal mode, last year I found the opposite, so this might be due to the different settings required when switching modes.

Cheers,