Stacking images from different sessions.

[Coastliner]

Hi,

I have two sets of data, one set taken with a 6" Newt at 675mm f/l and another with a 2.5" frac at 360mm. Obviously the fovs are different. Can Pixi scale one set against the other and produce one stack?

Thanks,

Neil.

[John_Gill]

Hi,

From my understanding this can be done easily.  I would process each stack of images to the point before doing a StarAlignment.  ie, Calibrated, CosmeticCorrection, Debayer (if required), SubframeSelector.  Your image stacks are now "clean".  Now use StarAlignment to combine all clean image stacks.  Finish with maybe LocalNormalization(optional) and finalize with ImageIntegration and DrizzleIntegration (optional).

space is not black
John

[Coastliner]

Hi John,

Thanks - your reply reminded me that I have used star alignment before, when I matched some RGB with some Ha, both being taken with the same kit though. It didn't occur to me that Pixi would scale different framings.

I'll give it a go now.

Neil.