Trial_image_with_Photutils.pdf

Jacob Chambers:

1. import image
2. mean,median,std of whole image found
3. define threshold=median+5std=median+5(3sigma)
4. define box size in pixel number
5. if n_ij>n_t, accept
6. return max pixel value(s) in 'clump' of pixels that represents a star (where a clump consists of 'touching' pixles above threshold)

boxsize=11:

next:

• plot N(R) v R where N(R)=sum(n_{ij}-b_{ij})