How would I compute the elementwise means of dark fields and flat fields, to get both a single dark field and a single flat field column to use in correction. I then need to apply the single dark mean and flat field mean for correcting the transmission data (X_proj).
X_dark = 2560x30 double
X_flat = 2560x200 double
X_proj = 2560x1500 double
My attempt for X_dark is below, does this look correct? How would I then apply it to correct the transmission data (X_proj)?