|
This is where the magic of Bayer drizzle comes in! You dithered, so with enough subs the idea is that the camera moved around enough that each of the 4 bits of the array (RGGB) visited the location of the others at some point. The algorithm uses that to create the RGB channels, it doesn’t need to interpolate and introduce noise from the other channels because it has data from the dithered subs. So stacking and extracting the red channel at the end is okay in this case. At least that’s how I understand it.
I use PI but I know there is a Bayer drizzle option in DSS as well.
|