Looking for Tone Mapping presentation

[brew]

I am looking for a copy of Tone Mapping_v2.pdf by J P Metsaivainio. This was a talk given at NEAIC in New York, I think in 2014. There are many links on Metsaivainio's web site, and on other sites, to a dropbox file; however, that link no longer works.

I am hoping someone downloaded the presentation and could send me a copy?

I know he is a photoshop guy, but I am hoping I can duplicate his steps in PI.

I have tried the process described by Edoardo Luca Radice in http://www.arciereceleste.it/tutorial-pixinsight/cat-tutorial-eng/75-narrowband-color-composition-eng. It has been a good start, but I am really struggling with the star removal portion and creating the masks.

[Geoff]

This post may help
https://pixinsight.com/forum/index.php?topic=7751.0

[brew]

I have used the ColorMask before, it is a very useful tool. However, it is not what I am looking for.

The Tone Mapping process removes stars from the image, allowing various operations to occur (stretching, HDR, etc) without bloating or messing up the stars. The star-less images are kind of cool in and of themselves.

I have seen a couple of useful discussions on this, the above referenced tutorial is one. Oldwexi also has a nice tutorial doing essentially tone mapping. I just wanted to find the original presentation by J-P Metsaivainio so I could see if there was anything else I could glean from it. I can't find a copy of it anywhere online; the dropbox link is no longer valid.

[drmikevt]

Here is another little tutorial on removing stars in PI.  http://trappedphotons.com/blog/?p=731

Sorry, I don't have the presentation you are looking for, but he uses PS, not PI to remove stars, I believe.

I have found that the tutorial that you link to above works best to remove stars with minimal artifact - much better than the one that I posted, at least for me.  The key, however, is a very, very good star mask that fits both large and small stars well.  For this, it is almost always the case that 2 or more star masks need to be combined (at least for me).  To remove stars, my current best approach is to mask and then apply MMT with the first 6 layers deleted, and then again with the first 3 layers deleted. I find that Morph. Transformation makes a bigger mess that is harder to clean up.  Then, I use TVGD in both the linear and non-linear states to try to knock the artifacts from star removal into submission.

If anyone has a different and better approach to star removal, please post!

Good luck!
Mike

[RickS]

I have a copy of Tone Mapping_v2.pdf.  If you respond to the email I sent you or PM me with your email address I'll forward a copy.

Cheers,
Rick.

[pfile]

as far as star removal goes, i find that david ault's method works pretty well when there is ample signal around the stars being removed. however, when the stars are by themselves in the background, what seems to happen is that the areas being replaced by the MT seem to get smoother and darker than the surrounding background. this leads to really visible higher SNR 'holes' in the image that are really quite unsightly. i played around with trying to add different types of noise to those areas but could never hone in on something that looked correct. something that does seem to work is to clonestamp nearby noise into the holes left by the stars but this is quite tedious.

anyone else have a good method for dealing with this?

rob