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| whugemann |
| Posted: Jun 21 2004, 12:56 PM |
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Unregistered
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I have just developed a AVISynth script that I want to share with you, because I couldn't find anything comparable on the Internet.
I have the JVC GR-DVL 9500 camcorder than can record 100 fps in PAL mode (corresponding to 120 fps in NTSC mode). The problem is that you get those 100 fps interleaved (i.e. 50 fps) and always two at a time, one over the other.
Having separated the two frames by use of the BOB filter, you get a double picture that looks like this:
!----------!
! No. 1 !
!----------!
!----------!
! No. 2 !
!----------!
You have to extract both pictures by the use of CROP and get them in the right order again.
The script looks like this:
clip0 = AviSource("filename.avi",false)
# Separate the fields with the Bob filter
# (doubles the frame rate)
clip1 = Bob(clip0)
# extract upper and lower picture
clip3 = crop(clip1, 0, 4, 0, 260)
clip4 = crop(clip1, 0, 316, 0, 260)
# an interleave them to double the framerate once again
Interleave (clip3, clip4)
Pretty easy once you know it ;-)
I thought that it would be a good idea to share the script with others. JVS gives no help at all on how to extract the 100 frames. They tell you that you can only watch the slomo with the JVC camcorder. (I hope, posting the script is a appreciated over here...)
Wolfgang
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| rfmmars |
| Posted: Jun 21 2004, 11:27 PM |
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Advanced Member
Group: Members
Posts: 324
Member No.: 5438
Joined: 29-July 03
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I have also used DoubleWeave too.
Thanks for the script.
richard
www.photorecall.net |
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