PixInsight Forum (historical)

PixInsight => Gallery => Topic started by: Luc Coiffier on 2007 March 31 10:43:32

Title: M33 Revisited - Fooling around with HDRWavelet - Wow!
Post by: Luc Coiffier on 2007 March 31 10:43:32

I couldn't resist trying the new HDRWavelet and decided to give it a shot with my M33 shot. :D

The last time my best post processing effort was that (http://pleiades-astrophoto.com/forum/viewtopic.php?t=140).

This time I got this, almost by just following the small tutorial in the breaking news (30% reduction)

(http://deepskystacker.free.fr/Gallery/M33_HDRW_3_Small.jpg)

The full size is visible here (http://deepskystacker.free.fr/Gallery/M33_HDRW_3.jpg) (warning 7Mb image!)

I know that there is still noise (although I did use GREYCstoration) but I don't mind it since it is not destroying the image.

Thanks a lot to Vicent Peris for the algorithm and thanks to the PTeam for implementing it.
It does wonders: a lot of hidden details are now visible.

Trust me: give a new post processing to your old images and you will be amazed. :D

BTW, I have a small request to Juan: would it be possible to save the history of an image with the image (or in a separate file or something).

Clear skies,
Luc

Title: M33 Revisited - Fooling around with HDRWavelet - Wow!
Post by: Carlos Milovic on 2007 March 31 14:36:06

Hi Luc

Congratularions for your new result. It is simple a big jum ahead. :) Just take with more care the stars next time ;)


Regarding the history question, you have access to the whole Processing History throught the History Explorer. If you look at the bottom, you'll see a "drag and drop object". If you drop the history on the workspace's background, you'll create a new Process Container, with all the processing steps in the History (in fact, histories are a subclass of process containers). This icon may be saved just as any other into a .psm file.

Title: M33 Revisited - Fooling around with HDRWavelet - Wow!
Post by: Luc Coiffier on 2007 April 01 05:14:08

Hi Carlos,

I know about the stars (big, blotted...). I simply did nothing to process them.  :oops:  
I was so thrilled with the result of the HDRWavelet that I forgot about them completely.  :wink:

Thanks for the tip about the history. This was exactly what I was looking for and much more.

In fact my process workflow involves a lot a previews which are transformed to images when I am happy with the result.
To be able to create a ProcessContainer containing all the small steps to replay them later all at once will simplify my post processing.

Clear skies,
Luc