Uploaded 9-Mar-10
Taken 9-Mar-10
Visitors 437

7 of 7 photos
Photo Info

Dimensions800 x 377
Original file size283 KB
Image typeJPEG
Color spaceUnknown
M106 Drizzle Test

M106 Drizzle Test

The galaxy M106 has some very delicate dust lanes in its core. With my 1000mm FL setup, I would not be able to resolve much of it. So, tried 2x drizzle.

1) I created a full-frame stack (no drizzle).
2) Using a Custom Rectangle, I did a 2x drizzle around the M106 galaxy and another one around NGC 4217 (without the Custom Rect, I ran out of memory).
3) I thus ended up with 3 images: A 1x full frame, a 2x crop around M106 and a 2x crop around NGC 4217.
4) I opened the full frame in Photoshop and enlarged it 2x so the pixels would match the drizzle images.
5) I layered and aligned the two 2x images over top the full frame and did initial curves and levels
6) I then sharpened the cores of the galaxies using masks (SmartSharpen and/or High Pass filter, I can't remember)
7) I then reduced the image to its original size and continued with the rest of the processing

The result is here (note the dust lanes in the galaxy core)