black and white point astro light pollution

[newty]

it works fine now !!!!

thanks a lot

[John Rostron]

On 3/13/2018 at 11:21 PM, >|< said:

AP doesn't yet have the convenient black point and white point colour samplers found in Photoshop's Curves and Levels adjustments, but you can manually do the same thing in AP by adjusting the black point and white point of each channel in AP's Curves and Levels.ach of the R, G and B channels to remove the murky blueish colour cast:

 

Making separate levels adjustments in the R, G and B channels is not something one would often do in a typical terrestrial photo. However, for astrophotography it would seem to be an eminently sensible solution.

John