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ASTRO: HorsHead reprocessed
HI to all,
here is an Horshead taken in the night between 26/12/06 and 2712/06. I reprocessed the image that is present on my website.... I like more this one respect http://www.fabioh2o.it/Images/DeepSky/deep43.htm Regards -- -- Fabio Acquarone Website: http://www.fabioh2o.it Email : |
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ASTRO: HorsHead reprocessed
Fabio wrote: HI to all, here is an Horshead taken in the night between 26/12/06 and 2712/06. I reprocessed the image that is present on my website.... I like more this one respect http://www.fabioh2o.it/Images/DeepSky/deep43.htm Regards It's hard to say which I like better. They are both good shots of a difficult target. To me the website version has better color, this one goes deeper with the detail easier to see. I've been fighting the same problem. Not using a one shot color camera I don't know if you can do what I've been doing of late to solve it. I've been pushing the luminosity image hard to bring out detail and faint features but, when combined with a normal RGB, gives me a version like this one of the horsehead, good detail with weak color. Up the saturation and the colors look horrible so I ended up with weak color but good detail. Lately I process the RGB to way too strong of color, balancing the background to gray where it really is neutral gray. Colors stay correct, just way too strong. Then when I combine that with the highly processed luminosity image the color fades to normal levels. If I miss and the colors are still weak I adjust the RGB and try again. If the difference is close then I can adjust the saturation on the LRGB. If I push saturation of the LRGB very much at all it quickly goes to dayglo grotesque colors. Reducing saturation causes no problems however. I have to do the pushing at the RGB level. Then that doesn't happen. I don't know if you can do something similar with one shot processing having never done any. I'm sure there are better solutions, this is the one I've found to work for my beginning ways. I find the final product less grainy but just as detailed if I do a 1.5 to 2 pixel Gaussian blur to the RGB before combining. I forgot that step in my M81 shot and it shows. Might not be important in one shot color where the color data is exposed the same time as the Luminosity. In my case I use half the time for the RGB data so it is noisier than the luminosity data. Blurring the RGB gets rid of that without hurting the final resolution that I can see. I'm sure the experts are cringing about now however. Rick -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
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