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johnfosteruk

False colour, making do

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I've just had a reminder of why I wanted the Mak in the first place, colour correction. This was after having a go at processing last night's full disc in colour.

I'd forgotten how poor my attempts at rgb images were when I only used the achro. A bright yellow fringe when increasing saturation (easy to fix - duplicate the layer, set blend mode to colour and apply Gaussian blur to the copied layer until fringe is gone) and a green hue to the whole image which no amount of fettling fixes, you just end up with a different hue.

So, I went with it and increased the saturation, fettled with colour contrast until I had something that looks like (but absolutely isn't) a geological map.

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45 minutes ago, johnfosteruk said:

something that looks like (but absolutely isn't) a geological map.

Oh yes it is :-)

How do you think they plot lunar geology if it is via spectroscopy?

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2 minutes ago, Stub Mandrel said:

Oh yes it is :-)

How do you think they plot lunar geology if it is via spectroscopy?

I know, but their spectrographs are rather more accurate than my achro :) hence the disclaimer.

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Clearly you are hiding your expertise in another room. I have no idea how to even approach this one, nor how to use the software that we have.

Keep posting John, your 'fettling' and my 'fettling' are Worlds Apart.

Superb, Rich

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13 minutes ago, RichM63 said:

I have no idea how to even approach this one

I'll send you a 'menu'

If I can remember what I did :)

 

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