m80116
Second Officer
Flight distance : 3264131 ft
Italy
Offline
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For my knowledge I can appreciate the MM 1080p video as being very resolvent and acute but not over sharpened, if sharpened at all.
Sharpening (in the actual meaning of digitally enhancing contrast around the edges) is one thing, acute or resolvence another, that is what the MM especially in its 1080p record is, downscaled using a simple algorithm that produces very clear near pixel level details.
As we are accustomed to more traditional demosaicing coming from Bayer filters this at 1:1 output (no scaling) produces softer images with no clear pixel level detail. If you grab a still picture from a Mavic Mini 1080p video and compare against a picture from a Foveon X3 sensor camera that gathers RGB light from every pixel you'll notice the picture detail resembling that downscaled from the Mavic Mini: lots of per pixel detail but also the image is perceived a bit noisy, despite actual noise levels (at low ISO) probably not having a perceivable effect, on the contrary that kind of harshness is inbred in the type of per pixel detail the image is carrying.
Anyway... I do believe its quite easy to cure with a gaussian filter used at sub-pixel lengths.
Here some examples:
The animated picture (gif) alternates a still picture from a 1080p untouched MM video and the same still processed with 0.5 px gaussian filter and subsequent sharpening. You can easily notice in the untouched picture the branches have no enhanced sharpening, even the next adjacent pixel still pertaining to the background field has no perceivable brightness shift. This denotes how little if any sharpening is applied to MM 1080p video. On the contrary with the filtered image you can clearly see a big increase in brightness shift around the branches, and that is around 80% sharpness of 1px radius applied as gaussian. That is by far the shapest... yet it offers considerably less detail.
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