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DBE trick of fixing values of samples

Bart Bogaert
in PixInsight
Hi Adam,

I'm relatively new to PI (I was using Siril before but decided to 'jump') and already followed FastTrack.  Now I am 'digging' through the tons of material in Fundamentals (watching some of them once will most probaby be not sufficient in order for the matter to 'stick'...).
I noticed that when you were using the trick of fixing sample values in DBE to manually 'control' the model, you were working with data on a single color channel (so I assume this data was captured using a mono camera and RGB filters).  In case data is captured using a OSC camera do you suggest to use the separate color channels (as this is now possible in WBPP) rather than on the combined RGB image when a similar issue would arise requiring 'manual control' of DBE?

When putting a sample on an RGB image you have values in all the color channels and I guess it is rather tricky (maybe even impossible) to set correct values.

Thanks again for all the time and effort you put making these tutorials; they are very instructive.

Regards,
Bart

Comments

  • BlockHeadBlockHead
    Bart,

    I explain this in my sections on DBE in particular. When you operate on a color image, you are operating on three images (channels) at the same time. So as long as the samples are valid for each channel (typically so), you can do DBE on the combined color image. Of course if there some very special case, breaking it out (or keeping separate) might be helpful.
    I haven't found this to be the case this though. I believe I demonstrate your question in some other videos on color images (and not just mono).

    -the Blockhead
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