No stress.
AVISynth can be very troublesome, but the final results are worth the headaches.
Krisqo wrote:No stress.
AVISynth can be very troublesome, but the final results are worth the headaches.
topgamer101 wrote:2) This effect on characters clothing that causes a line of sorts with tiny boxes in those lines that move or "blink" as the character moves. (I'm not sure if I'm explaining that very well.)
If anyone happens to know what problem 2 is called and how to fix it I'd love to know. Thanks.
Gepetto wrote:While we're discussing weird artifacts, is there a way to apply derainbowing to only a part of my footage? The only way I can get to fix the rainbow is by making all the rest of the screen look like it was thrown up by a rainbow.
Scintilla wrote:topgamer101 wrote:2) This effect on characters clothing that causes a line of sorts with tiny boxes in those lines that move or "blink" as the character moves. (I'm not sure if I'm explaining that very well.)
If anyone happens to know what problem 2 is called and how to fix it I'd love to know. Thanks.
If it looks like this, it's dot crawl:
Dot crawl is one of the hardest artifacts to remove, but there are some AVISynth filters designed to combat it: try DeDot or FluxSmooth (the latter should be only applied to the luminance channel for this purpose; use MergeLuma to see that it is).
topgamer101 wrote:This is more what I'm talking about.
http://img455.imageshack.us/img455/6359/problem1rv7.jpg
It's a little hard to see, but look on his sleeve and shoulder of his coat. That's the problem I have. In Gungrave it doesn't come out so bad, but in Hellsing Ultimate it was very easy to see.
Looking at it closely it might be something like the problem you showed me earlier, but this particular problem almost always only applies to a characters clothing. I don't know, if you know more about it I'll be sure to listen.
MPEG2Source("project.d2v", cpu=4)Willen wrote:topgamer101 wrote:This is more what I'm talking about.
http://img455.imageshack.us/img455/6359/problem1rv7.jpg
It's a little hard to see, but look on his sleeve and shoulder of his coat. That's the problem I have. In Gungrave it doesn't come out so bad, but in Hellsing Ultimate it was very easy to see.
Looking at it closely it might be something like the problem you showed me earlier, but this particular problem almost always only applies to a characters clothing. I don't know, if you know more about it I'll be sure to listen.
I believe that is Mosquito Noise (aka. Gibb Effect). Try using msmooth in AviSynth. Other smoother filters may also work.
You may be able to eliminate or reduce the appearance just by adding or increasing the value of the cpu= parameter to your MPEG2Source() filter call if you haven't already done so.
- Code: Select all
MPEG2Source("project.d2v", cpu=4)
Try using a cpu= value of 5 if 4 still exhibits the noise. Use 6 if 5 doesn't produce results. Higher values will soften the video, so use the lowest you can.

DarkestBuddha wrote:hi
im getting some problems loading it too this is my code
AviSource("C:\[B-I]_Heroic_Age_-_01_[56AB3D8C].avi")
KillAudio()
then i get the error
avisynth open failure:
avisource autodetect: coudnt open 'C:\[B-I]_Heroic_Age_-_01_[56AB3D8C].avi'
error code:2
(c:\doecuments and settings\CompName\desktop\first.avs,line 1)
i think it is the same error as the guy up top
is there anything wrong with my code? its an xvid so im trying to change it. i dont know how to apply the lagraith codec to it yet
Willen wrote:That's Posterization (usually confused with Banding, which is very similar). The usual culprit is colorspace conversions where there are insufficient bits per color (16 bits versus 24 or 32 bits), especially on low quality sources. Another possible cause is over aggressive settings for sharpeners and other filters. Over filtering can definitely produce that effect.
I'm assuming that isn't only happening in VirtualDub's preview (which by default is set to display at 16 bits color depth for speed). VDub's preview will have no effect on the actual output unless you purposely lower the color depth of the actual video.
Unfortunately, I'm not sure how to eliminate or reduce posterization from a source that has it other than to blur it somewhat.
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