[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
RE: [APML] OT: Leo Trio (300D) and GradientXTerminator
>Thanks for the tip, Carlos! I will try it, as well. Maybe I'll even try a side by >side comparison using the same image. That would be an interesting test...
Sure! Just take a look at the DBE tutorial to learn how it works. The key factor is were you put the sample boxes. The other paramethers ussually works very well with the default values.
The great advantage of DBE is more noticeable with more difficult images (yours had a lot of "free" background, and the objects were very small). If you have a very large object, like nebulas or the milky way, DBE gives you the possibility to create "virtual" samples using symetric properties. That way you help the software to create a more accurate model.
Another advantage is that you are working with 32-bits per channels... no poseterization, no steps in your gradient. And finally, you can use the generated model in the you you want. You can substract, divide (see my article about dividing film images by a flat), or just store it. It is a new image.
Regards,
Carlos Milovic F.
-------------------------
Astro & Photo - CMF
http://www.astrophoto.vze.com
-------------------------
Visita "AstroFoto", el foro de astrofotografía en español
http://espanol.groups.yahoo.com/group/astrofoto
_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo
