colour smear with cineform Neo HDV and HV20 at DVinfo.net

Sean Worsell · March 13th, 2008, 08:00 PM

I'm getting a strange smear on every 4th or 5th frame with my HV20 footage, after processing in Cineform Neo HDV. Especially the red portions of the image get smeared. Again, it's only every fourth or fifth frame, and seems to be worse with the reddish colors (and reddish skin tones).

I'm using these settings: Film Scan and the 3:2 pulldown in Cineform's Neo HDV.

Any ideas why I'm getting this strange artifact/defect?

Thx!

David Newman · March 13th, 2008, 10:13 PM

Pull-down extract can be tricky form 4:2:0 sources. I gather is was capture from tape, not live via HDMI through an intensity card. If you have a good example M2T file that is less than 100MBytes, please send it or my email dnewman at cineform (you know the rest) via yousenditdot.com and I'll look into it.

Sean Worsell · March 14th, 2008, 08:14 AM

It was actually a conversion from an already captured m2t file (captured by HDVSplit). I don't seem to get any of these color smear artifacts when Cineform does the 3:2 pulldown directly from the tape. Looks great to me. So, for some reason the m2t files from HDVSplit were not playing perfectly nicely with Cineform Neo HDV. But capture from tape through Cineform looks great so far.

Thanks again!

March 13th, 2008, 08:00 PM	#1
Sean Worsell New Boot Join Date: Jul 2007 Location: Toronto Posts: 15	colour smear with cineform Neo HDV and HV20 I'm getting a strange smear on every 4th or 5th frame with my HV20 footage, after processing in Cineform Neo HDV. Especially the red portions of the image get smeared. Again, it's only every fourth or fifth frame, and seems to be worse with the reddish colors (and reddish skin tones). I'm using these settings: Film Scan and the 3:2 pulldown in Cineform's Neo HDV. Any ideas why I'm getting this strange artifact/defect? Thx!

March 13th, 2008, 10:13 PM	#2
David Newman CTO, CineForm Inc. Join Date: Jul 2003 Location: Cardiff-by-the-Sea, California Posts: 8,095	Pull-down extract can be tricky form 4:2:0 sources. I gather is was capture from tape, not live via HDMI through an intensity card. If you have a good example M2T file that is less than 100MBytes, please send it or my email dnewman at cineform (you know the rest) via yousenditdot.com and I'll look into it. __________________ David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

March 14th, 2008, 08:14 AM	#3
Sean Worsell New Boot Join Date: Jul 2007 Location: Toronto Posts: 15	It was actually a conversion from an already captured m2t file (captured by HDVSplit). I don't seem to get any of these color smear artifacts when Cineform does the 3:2 pulldown directly from the tape. Looks great to me. So, for some reason the m2t files from HDVSplit were not playing perfectly nicely with Cineform Neo HDV. But capture from tape through Cineform looks great so far. Thanks again! Last edited by Sean Worsell; March 14th, 2008 at 09:03 AM. Reason: new information