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Messages - glowingturnip

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Wish List / Linear plane manual background extraction
« on: 2019 March 20 13:13:24 »
I'm currently processing a close up of the Rosette with no reliable background points.  I eventually managed to get what I think is a decent result with just 4 points which I figured should be about the same level.  However, it made me think if there could be a better way of doing it.

How about if you had a manual background extractor that assumes that the gradient in the image is a tilted linear plane.  You could adjust the tilt of the assumed plane to be deducted from the image via a real-time preview until you got a result you're happy with.  You could control the direction and amplitude of the tilt with either a virtual joystick or x and y sliders all centered at zero.  You could run it on RGB/K or on R, G and B individually.

Sound like a good idea ?

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liking that a lot - just tried it with an Iris Nebula set of data I've just started working on - easy to run and gives a better result than BN and CC did.

One small request though, would it be possible to have an option to output the background reference mask, like CC has, so that you can check that your upper limit for background was a good choice ?  (It would be nice if BN had the same option to output the mask too)

Cheers

3
bumping an old topic,but I still see this bug.

In particular, if you click the little selection box to the left of a non-highlighted file, then the selection box of the highlighted file (highlighted in orange) is also toggled

4
Wish List / simple transparency/fade process ?
« on: 2017 January 18 04:03:43 »
Hi there - long-term user, first time poster (I think).

In all my work flow, especially all the non-linear HDR and sharpening stuff, I find I end up using the same piece of pixelmath over and over again, along the lines of (a*opacity + b*(1-opacity)) to enable me to either fade an effect I've just done or to get a mix of differently processed versions.

Just wondering if there is a possibility of having a formal process to do that - it could have:
- real-time preview
- either two target images, or the target image and its last swap file
- transparency slider
- fully maskable
- applicable to whole image, or to R, G, B, L, a, b, chrominance etc layers


What do you think ?

Stuart

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