It is not clear what the actual problem is. Many camera images may have a high pixel count, but not be effectively coded. What is normally displayed on the composer window is directly traceable to the codec output. There are a few exceptions, and using a plugin like autoscale is one of them. The preferences can affect the scaling equations. See: Preferences->Playback A->Scaling Equation->Popup (Nearest...Lanczos) Normally, the scaling is nearest neighbor, since it is fastest. But if you want the buffer to be filtered on scaling, there are a whole bunch of plugins which claim to be good at doing just that. When you zoom in, normally the composer canvas is smaller than the media buffer dimensions. Once the magnification makes the pixel to pixel mapping better than unity, you see square pixels. There is no such thing as the NCIS effect that lets you magnify one pixel into and entire licence plate. If the data is not there, it cannot be magnified or filtered. I did try to test this, and the results looked predictable. I have attached the results. This is a wallpaper picture downloaded from: https://images.wallpaperscraft.com/image/autumn_forest_trees_80863_4000x3000... I loaded it, and set the format to 1920x1080, added "Auto Scale" plugin, and setup its scaling parameters. This plugin uses the preference scaling equations. The attachments are: auto zoom, nearest neighbor, still crispy little branches zoom x 8.9, nearest neighbor, pixels are too crispy zoom x 8.9, bicubic,bicubic, better zoom x 8.9, linear,linear, best I think, no halos zoom x 8.9, lanczos, pretty good, but I like linear I do not see any macropixel artifacts, or boundary problems. If you see a problem, or can demonstrate a problem with some media you can provide, please let us know and I will definitely give it a look. Thanks for your attention, gg On Tue, Mar 3, 2020 at 4:05 AM deim31 <[email protected]> wrote:
Hi, I noticed when I paste e.g. 12 MPx photo - and video output is e.g. 720p or 1080p the quality of zoomed-out photos is somehow bad - when I use Scale or Auto Scale the result was worse than camera automation but either result wasn't in good quality.
Thanks, deim
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