#1  
Old 25-07-2013, 09:10 PM
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alpal
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Louie's processing videos now on youtube.

Hi Everyone,
I gained permission from Louie to put all his series of Photoshop astro processing videos on youtube.

These are great to get into the starting line of processing
& there are many tips for the experienced as well.
Without these videos - many years ago - I would have
been unable to process any photos as the information was not easily available.

The link to 11 of the videos is here:

https://www.youtube.com/channel/UCJ5...Ge66vsuSaXb-0A

If I find more - I'll upload them.

cheers
Allan
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  #2  
Old 25-07-2013, 10:03 PM
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For the many videos from another presenter - Doug German -
search youtube using the words:

Doug German Astrophotography
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Old 26-07-2013, 09:10 AM
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Note:

I find the best way to learn is to put the video on the
right hand side of my monitor & Photoshop on the LHS.
I can then start & pause the training video to copy each step.
After using the video 2 or 3 times I can then remember each step.
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Old 26-07-2013, 11:07 AM
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Thanks Allan, Ill check them out.
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Old 27-07-2013, 06:52 PM
DJT (David)
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Cheers, Much appreciated
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Old 28-07-2013, 09:35 AM
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Thanks guys,
I am glad people like these videos too.

I have since discovered the free NASA program FITS Liberator.

see link:
http://www.spacetelescope.org/projects/fits_liberator/

It can stretch 32 bit image straight off Deep Sky Stacker
when they are saved as FITs files.
It gives more shades of brightness when stretching.
This was proven in my last processing of the Centaurus A galaxy which I posted on flickr.
The data coming off my CCD camera is 16 bit & not 12 bit as in most DSLR cameras.
There was however 32 bit data available after stacking
which helped to bring out the faint halo of the galaxy.
I used the stretch function x^1/5 which they say is compression
but it actually stretched the galaxy halo out of the noise far better than 16 bits.
The files from FITs liberator can be saved in 16 bit format for use in Photoshop.


Louie does not go into background flatten for gradient removal.
Another free program is called Fitswork4 which has
a function called : background flatten, variable flatten
which will enable a mask of the bright areas & remove gradients which is vital for most pics.

Maybe I should do a video tutorial on all of this but most people would already know this?

cheers
Allan

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Old 03-08-2013, 09:18 AM
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I'm proud of my former student and APOD imager Louie Atalasidis.

https://www.youtube.com/channel/UCJ5...Ge66vsuSaXb-0A

Thanks to Allan for posting these valuable tutorials.

In 2007, Louie said of www.IP4AP.com

'Bloody awesome Tuts !I love It ! this is so valuable to have You just have to put a DVD together along the same theme of " learning the art of processing" As I look around the different forums at newbies images, I see that we all fall into the same traps. Even though we read the same books (R. Wodaski) none of It really starts to sink in until someone goes over It with you. I think that your Tutorials are the key to a quick and easy way of understanding what we are looking at when looking at the data . Also now that I think of it, being able to present a respectable image with minimal fuss ! I can see this being the difference of some newbies sticking with It or giving It up ! Also let me add that I think you have a great voice for narrating these tuts. Anyway as you can see I'm rapped ! so looking forward to more. Warren please send me your PayPal account I want to send you a little something for your time. I'm not rich so sorry It won't be much but I am grateful for your time and effort you put into these tutorials.

Cheers, Louie Atalasidis

Thank you Louie! Warren
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Old 03-08-2013, 10:21 AM
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Thanks Warren,
I am glad people like these videos too.
There are many more advanced ones on your website
which many well known imagers have recommended in their testimonials including Louie.
see here as per your link:
http://www.billionsandbillions.com/tutorials.html


For beginners & other's who may be interested:

I have since discovered the free NASA program FITS Liberator.

see link:
http://www.spacetelescope.org/projects/fits_liberator/

It can stretch 32 bit image straight off Deep Sky Stacker
when they are saved as FITs files.
It gives more shades of brightness when stretching.
This was proven in my last processing of the Centaurus A galaxy which I posted on flickr.
The data coming off my CCD camera is 16 bit & not 12 bit as in most DSLR cameras.
There was however 32 bit data available after stacking
which helped to bring out the faint halo of the galaxy.
I used the stretch function x^1/5 which they say is compression
but it actually stretched the galaxy halo out of the noise far better than 16 bits.
The files from FITs liberator can be saved in 16 bit format for use in Photoshop.


Louie does not go into background flatten for gradient removal.
Another free program is called Fitswork4 which has
a function called : background flatten, variable flatten
which will enable a mask of the bright areas & remove gradients which is vital for most pics.

Maybe I should do a video tutorial on all of this?
I would have to find a suitable tutorial program
for the video & audio - if anyone has a recommendation?.

cheers
Allan
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