Reply To: cosmology needs you!
Sorry, but I could not wait and made a prototype for analysis. I hope this helps to clear up some misunderstanding:
1)What formula to use for brightness calculation. I used RGB average.
2)How to detect galaxies. I do remove of dark space, and take clustered pixels as galaxies
3)What kind of output. Tab separated? What kind of parameters?
4)Need batch processing?
5)Maximum size of images?
6)Memory constrains?
It might be slow, inefficient, and ugly, but should work.
Source included (not commented).
Usage:Extract Debug.zip, and run GalaxyAnalysis.exe