VVrath
30th April 2005, 14:40
[First up an apology for cross posting this. No-one in the DV forum seemed to be able to help, and given that I'm looking for a Vdub filter (or help getting the right parameters for an existing filter) I thought I might have more success here. If you've already seen this post, sorry!]
OK, so I did the forgivable - used LP recording mode on a rented camera, and then tried to get the DV into my PC using my own (crappy JVC) camera. I know it's inexcusable, but I needed the tape length :-( Alll but one of my tapes has captured fine, but the remaining tape gives periodic sparkles of mosaic corruption - tape dropout by the looks of it.
I've tried a temporal smoothing filter, but can't seem to find any settings that get reduce things to an acceptable level of artifacts. I've tried spot remover in virtualdub, but again, can't seem to find any usable settings. Can anyone suggest any possible alternative methods, or failing that, some useful settings to use as a starting point with either of the filters I've already tried?
Here's an example of some of the errors I'm seeing. They only appear for one frame at a time, and they're appearing at random intervals of approx once every 3 seconds:
http://www.edgeley.co.uk/DV-Artifacts1.jpg
No errors in this frame
http://www.edgeley.co.uk/DV-Artifacts2.jpg
But the next frame's full of sparklies
http://www.edgeley.co.uk/DV-Artifacts3.jpg
And in the frame after that they're gone.
Any help would be very much appreciated.
OK, so I did the forgivable - used LP recording mode on a rented camera, and then tried to get the DV into my PC using my own (crappy JVC) camera. I know it's inexcusable, but I needed the tape length :-( Alll but one of my tapes has captured fine, but the remaining tape gives periodic sparkles of mosaic corruption - tape dropout by the looks of it.
I've tried a temporal smoothing filter, but can't seem to find any settings that get reduce things to an acceptable level of artifacts. I've tried spot remover in virtualdub, but again, can't seem to find any usable settings. Can anyone suggest any possible alternative methods, or failing that, some useful settings to use as a starting point with either of the filters I've already tried?
Here's an example of some of the errors I'm seeing. They only appear for one frame at a time, and they're appearing at random intervals of approx once every 3 seconds:
http://www.edgeley.co.uk/DV-Artifacts1.jpg
No errors in this frame
http://www.edgeley.co.uk/DV-Artifacts2.jpg
But the next frame's full of sparklies
http://www.edgeley.co.uk/DV-Artifacts3.jpg
And in the frame after that they're gone.
Any help would be very much appreciated.