Hello everyone, I got… a funny problem when experimenting with gstreamer
When I’m tried to resize camera resolution down, the resulting frame looks not good. So I think I need to set interpolation method when resizing. But when I read Acclerated GStreamer User Guide, it says Smart is default. So is this smart interpolation generates bad frame?
Upon inspecting the nvvidconv with
gst-inspect-1.0 nvvidconv, I found this :
interpolation-method: Set interpolation methods flags: readable, writable, controllable Enum "GstInterpolationMethod" Default: 0, "Nearest" (0): Nearest - Nearest (1): Bilinear - Bilinear (2): 5-Tap - 5-Tap (3): 10-Tap - 10-Tap (4): Smart - Smart, this is default (5): Nicest - Nicest
This is funny, Smart is default, but gst-inspect says the default is 0, which is Nearest. That’s why I feel the final frame looks bad. I expects some noise from camera blends in, but instead it’s hardening :(.
Here’s example when I used default from gst versus manually select smart :
Or is the nearest is supposed to be default interpolation method?