My reprocess of John K's Jupiter avi

[iceman]

Hi all.

John K posted a great image of Jupiter the other day (http://www.iceinspace.com.au/forum/showthread.php?t=9237), and I could see from the image that the original avi had potential so I asked John to send it to me.

I got the DVD in the mail last night, so I spent some time this morning processing it.

Wow, I wish it was my avi! Such great data, huge image scale and the focus is spot on.

I had to go very light with the processing because some terrible onion rings popped out around the edges if I pushed it too hard. John, what were you settings during capture, in particular gain and gamma?

I processed the avi in the same way I process all of them - split into RGB, registax the separate colour channels and then a (very) light LR deconvolution and recombine, gamma adjusted down to 0.7.

Hope you like it John, you've got some great data there.

My version is on the left, John's original 2 versions are #2 and #3.

[davidpretorius]

great work mike,

love the colour of the bands and the white is very nice. feels very life like as in what you "see", ie not too heavy on the contrast etc.

[Robby]

Wow :jawdrop: That's some re-process!
I must say I've always been a little suspect of using LR on jpegs as theoretically LR really needs "RAW" data in order to determine the correct PSF (point spread function). But after seeing what you have done lately using LR, I might just give it another go. Perhaps there is still enough "raw" info in a jpeg to make it worthwhile.
Nice work.

[iceman]

Thanks Dave and Robby.

I used the LR process on TIFs saved from Registax, not JPEGs as such.

[Robby]

The AVI is a sequence of JPEG's though... Regardless of this by the time you have done all your registax processing, all "optical path" information will be well & truely gone, making accurate LR PSF extraction virtually impossible.
But still it seems to work, so I'm not going to argue!
Do you extract the PSF from the image Mike or do you use a known PSF for your optical path?
Cheers

[RB]

That is truely amazing Mike.

[astro_south]

That looks great Mike. Has a nice 'natural' feel to it....oh, and nice capture John

[John K]

Thanks Mike, that's an amazing improvement.

I will send you a PM for more info.

The settings used on my NexImage were around 45% for Gain and 60% for Gamma.

Mike I have also added your re-processed image with a credit to you and your comments on my photo website if you dont mind here: http://www-us.flickr.com/photos/johnkazanas/132645809/

[ving]

great stuff!!
for the boring side that has soooooooo much detail! :)

[Robert_T]

Great stuff all round. I liked John's originals yet Mike has pulled some subtle detail from the depths. Lovely :thumbsup:

cheers,

[matt]

Mike. That's a great re-process. Please tell me how you carry out this particular part of the process???? What program do you use to split into separate RGB, how do you then run them through registax etc etc???