MultichannelCombination Script first result

S

Silvercup

Well-known member
Hi all:

This is MultichannelCombimation Script first result.

5040552408_be62cfdb89_b.jpg


Narroband Data by Silvercup
RGB Data by Caliu

Just HistogramTransformation, HDRWavelets, Curves saturation & color ajustment, and Star color correction due to RGB blue dominance.

Script is still in development but I think I have got a good result.

What's your opinion?

Best, Silvercup


Hola a todos:

Este es el primer resultado del script de combinaci?n de canales:

5040552408_be62cfdb89_b.jpg



Datos Narrowband de Silvercup
Datos RGB de Caliu

Despues de salir del script la imagen solo tiene Histogramas, HDRWavelets, Curvas: saturacion y ajuste m?nimo de color, y correccion de color en las estrellas debido a una dominante azul en el RGB.

Al script todav?a le queda un poco, pero creo que los resultados son buenos.

Ya me direis que os parece. Silvercup.
 
Indeed it looks promising.  I mentioned this to Vicent so hopefully he will also look soon.  Keep up the good work!  If you use our Helix data and your script beats the two weeks of manual work we put into our yet to be finished and published version -I will be pissed<G>.
 
Hi Jack:

The script intention is saving hours of manual pixelmath combinations to achive a good result. When I processed Rosetta first time I spent several days untill I found this combination:

R=SII+HAlpha*0.15
G=HAlpha*0.60
B=OIII+HAplha*0.25

The combination seems very simple, but I allways got a green image due to more exposure HAlpha channel. Then I had to neutralize Background and run an ABE to see the results and so on.

The script does this work almost automatically and you get a more or less calibrated image. If you don't like the result only has to move the sliders (the easy way). You can do more complex operations with manual pixelmath expresions but in an easy way, and you can use mask for every image in a channel, etc.

Best, Silvercup.
 
Hi Silver,

Nice work! This looks like a terrific new tool. I can't wait to see the script published!  ::)
 
Silvercup said:
Hi Jack:

The script intention is saving hours of manual pixelmath combinations to achive a good result. When I processed Rosetta first time I spent several days untill I found this combination:

R=SII+HAlpha*0.15
G=HAlpha*0.60
B=OIII+HAplha*0.25

The combination seems very simple, but I allways got a green image due to more exposure HAlpha channel. Then I had to neutralize Background and run an ABE to see the results and so on.

The script does this work almost automatically and you get a more or less calibrated image. If you don't like the result only has to move the sliders (the easy way). You can do more complex operations with manual pixelmath expresions but in an easy way, and you can use mask for every image in a channel, etc.

Best, Silvercup.
Click to expand...

Hi,

as I teached at Adler, before doing an SHO combination it is highly recommendable to make a color calibration. The trick is to put as white reference the whole image, so you come with an image where the three channel have equalized fluxes.

To have the background under control (I assume you run BackgroundNeutralization before running the script or the PixelMath formula), you must multiply only the object signal. So the formula is not C*k (k= the factor that multiplies the channel C), but (C-(Med(bg))*k+Med(bg), where bg is an independent image that contains a small crop of a background area of the image.


HTH,
V.
 
You must log in or register to reply here.
Back
Top