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Blur X terminator question

jeffrey merrilljeffrey merrill
in PixInsight
Hi:  blur xterminator looks great.  I watched your youtube introduction.  I'm confused about which images to apply it to.  

Deconvolution traditionally seems to be for luminance. Most of your demo is RGB.  

To use this new tool effectively, is it applied to both RGB and luminance data?

jeff

Comments

  • BlockHeadBlockHead
    Jeff,

    Because of my suggestion- Russ has made a new option that will allow you to operate on only the Luminance. Of course, it is by operating on a color image that BXT can correct color related aberrations (chromatic, scatter.... etc). 

    In general, if you take LRGB data.. you will want to operate on both the L and the RGB. You need the stars of the RGB to be commensurate with the L. BXT is so good that the difference matters. You do not need to match exactly (And I am less aggressive on the RGB)- but in the ballpark is good.

    -the Blockhead
  • jeffrey merrilljeffrey merrill
    Hi Adam:  thanks for response.  The other question I had:  with my LRGB workflow using Pixinsight deconvolution I had created master luminance, done MUREdenoise and then DBE and Deconvolution.  I think I had asked at one point about the noise reduction before deconvolution and feeling was likely ok if using MUREdenoise

    using Blur Xterminator you've made the point of not altering the PSF, that DBE prior is ok..if you were to use MUREdenoise as linear noise reduction..would MUREdenoise still be ok immediately after Master luminance creation and before DBE/Blur Xterminator?  my limited understanding of that noise reduction tool is that it needs to be relatively early in workflow

    jeff
  • BlockHeadBlockHead
    MUREDenoise is a special creature. I suspect it does not affect the PSFs much- or in a way that is similar to traditional methods. I guess I have found that NXT does such a good job- I don't find it necessary to employ the mystical magic of MUREDenoise (which can be hit/miss especially with CMOS/CFA images).

    So I think you can be the explorer and see... but my guess is that MUREDenoise before BXT is OK- However BXT does a VERY good job at maintaining the noise floor- I don't wonder if MUREDenoise *after* BXT is OK too? :) All needs to be checked out. My current choise is BXT followed at some point by NXT.

    -the Blockhead
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