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View Full Version : How to Sharpen Interlaced DV source and keep the source interlaced


hannah
5th November 2007, 00:51
Hi All,
I am an intermediate avisynth user. This is the task I have in hand. I have shot badminton game in my DV camcorder however due to the distance involved the players outline came very soft and the color of their outfit leaked it’s boundary. This is my current flowchart:

1. Shot the game in miniDV tape in my Panasonic Camcorder
2. Use WinDV to copy this game in my computer HDD
3. Use TMPGEnc 4.0 XPress to encode in MPEG2 (I know DV source is BFF)
4. Use TMPGEnc DVD Author 3 with DivX Authoring to author my encoded video and then burn into a DVD
5. Watch this DVD in my DVD player

As you can see there is no filtering or digital enhancement involved in this flowchart. I now wish to achieve following two goals.
1. To be able to sharpen my source before feeding to the TMPG encoder to encode in MPEG2
2. To be able to stop the color leaking outside it’s boundary

I know both can be achieved through avisynth but wish to get a pointer in the right direction. I do have extensive experience using LimitedSharpen, Seesaw and various other deinterlace methods. However I only have used those methods while encoding in xvid. My current DVD player does not play xvid hence I now need to encode my footage in MPGE2.
I did search this forum however came up with suggestions with deinterlaced source. All your help is highly appreciated.

Guest
5th November 2007, 01:32
#Process for filtering interlaced video
Bob() # use your favorite bob filter
Sharpen() # put your desired processing here
SeparateFields().SelectEvery(4,0,3).Weave()

Post a link to an unprocessed source sample for more specific advice.

hannah
5th November 2007, 21:34
Hi,
It worked however I have now decideded against it. I figured that since the moving obejects are quite little and quite far off there is not much point doing sharpening. I had used "seesaw" and it had done minor improvements however at the cost of huge processing time.


On an another note, I will definitely give this method a try when I shoot birthdays and weddings. Objects will be much closer and trust I will have better results.

Any suggestions on stopping the colors from leaking through it borders/edges.

AVIL
5th November 2007, 21:51
Hi,

Fizikck's filter fft3dfilter have a sharpen and a interlaced parameter. Then you can achieve your goal without bobbing.

Good luck

hannah
6th November 2007, 23:39
Hi,

Fizikck's filter fft3dfilter have a sharpen and a interlaced parameter. Then you can achieve your goal without bobbing.

Good luck

Will give it a try. thanks

AVIL
7th November 2007, 21:49
Hi again,

Other tip for fft3dfilter. To not perform denoising, only sharpening set bt parameter to -1.