Hey Guys, Do you know any good app that automatically removes dark spots from iphone photos resulting from dust particles on the chip. This could easily be achieved if the images are "flatfielded" i.e. divided by a homogeneously flat monochromatic image that only shows the dust particles, a "dust map" if you will. I don't know if there is an app that allows you to do this correction automatically. I expect something like first taking a photo from a uniformly illuminated area to generate the dust map, which should be automatically saved by the app and afterwards all photos are automatically divided by this dust map to correct the images. I hope this is not too confusing, I am an astronomer, and this is exactly what one does to correct for such effects in science... Do you know if there exists such an app to correct for these image artefacts?