Skip to main content
8 events
when toggle format what by license comment
Feb 3, 2015 at 8:48 history protected Qmechanic
Oct 20, 2014 at 22:17 answer added Gamma Draconis timeline score: 4
Oct 19, 2014 at 14:56 comment added netom No, I mean temporal filtering, and constantly hot pixels. "Removing DC" if you like.
Oct 18, 2014 at 9:28 vote accept netom
Oct 18, 2014 at 6:16 comment added user10851 "highpass-filters every individual pixel and all three color channel": just to be sure, you're not filtering each image independently, right? When a cosmic ray, for instance, strikes a CCD, the most common outcome is a hot pixel. The only hot pixels you should remove are those that persist from one image to another. Also, I don't know the details of consumer cameras, but I've heard and fully believe they do similar filtering before saving the data (because no one wants grainy images reminiscent of 1990s-era digital cameras).
Oct 17, 2014 at 22:43 answer added CuriousOne timeline score: 4
Oct 17, 2014 at 22:14 answer added user60063 timeline score: 7
Oct 17, 2014 at 22:04 history asked netom CC BY-SA 3.0