Geo_Drone
Second Officer
Flight distance : 2676129 ft
Romania
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Burstmode Posted at 7-28 09:34
Thank you. This actually sounds a bit tedious (lots of work).
Do I understand correctly that ONE (literally, exactly one) frame each second is the "master" frame -- no matter what video settings you are using, there is always a single "maximum quality" frame each second that's used for software interpolation?
Multumesc to you too
Does not matter if you use 24-30-60 FPS, is about how HEVC codec works: is taking one master image each 8 frames, is building "blocks" from that image (practically is splitting it in parts) then next frames records only changes in areas that are really changed. In rest, is keeping the area from master frame...this is how HEVC compression works, reduced at a simple explanation (is complicated, but this is the basic of video coding in HEVC).
This is why you have that Master Frame each 8 frames, no matter what FPS you use, the codec is the same. Of course, recording in H.264 changes things, but most of us use H.265.
To answer to other people here that say the image is limited: Well, depends...If you record in 5K and have a master frame saved in PNG from Premiere, edited properly in Photoshop and magnified with Topaz Gigapixel, will result an image that can compete with a photo taken by a normal camera (not mirrorless or DSLR, OK? as not even a DNG from Mavic 3 gets close to a Mirrorless photo, no matter is having 4/3 sensor, optics sucks).
So practically depends on your editing skills...
One more thing: If you import and edit the video then export it again in video, even if is HEVC, is a high possibility to rewrite the master frame at reencoding, meaning that you will not get a real master frame generated at first encoding from camera. Because of this, my work is like this: import video in Premiere, find Master Frame, edit video (WB, colors, contrast and so on), then capture the Master Frame edited and save to PNG. In this way I get maximum quality....If you reencode, the codec will re-arrange the Master frames as you can make changes in FPS (and frames are eliminated or added), so your true Master Frame is gone, will be a replacement. Is hard to notice differences but it is there (artefacts from compression, color shifts, harsh edges...). You can preserve at encoding the real Master Frames but this is already not a beginner tutorial
Cheers. |
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