Removing color bleed from capture

[swiego]

Attached is a capture from VHS. I am still learning so I apologize in advance for the first post. Forgive the smallness and softness, the image is a crop. In some of my captures, I am seeing a halo of color and what almost look like sharpness artifacts. In this picture, take a look at the groom's tux - the edge of his right shoulder and arm have a yellow cast. You also may be able to make out a little ringing around his head.



Setup - Captured from VHS on a JVC 9910U. DRC3D on, TBC on, Edit mode, Video Configuration on, Stabilizer off. Connected to a cheapo capture device I borrowed (ADS DVD XPress) via a reasonably high quality SVideo cable. (Big fat AR "reference series" or some such.)

I think I have two problems here. One, the yellow cast... I presume there is some sort of bleed but I am not at all familiar with name and/or source of this phenomenon. I'm guessing it's pretty common. Before asking how to fix it, I guess I'd like to know whether this is a problem with my playback or my capture. I don't see it when plugging the VCR into a SDTV, then again the TV's resolution isn't all that great. How should I approach troubleshooting this issue?

Second, if I see any kind of haloing, is it likely to be the playback device or the s-video interconnect between the playback device and the capture device?

[guns1inger]

The haloing to me looks like deinterlacing artifacts. Are you deinterlacing ? If so, how ? If not, how did you grab the still ?

[lordsmurf]

I don't see any color bleeding.

What you have here is an optical issue, and it cannot be fixed. I can reproduce that on a still camera if I wanted. You're simply seeing the effects of shooting from the dark side of a lit object.

Also, the previous question about deinterlacing is not related, but valid. If you're deinterlacing, quit. That's not proper video methods, assuming this is a DVD project.

[guns1inger]

It seemed more than just rim light, but you are probably right. I bow to your blueness.

[swiego]

Wow, thanks for the replies.

I just realized that you're right, deinterlacing can cause edge artifacts like this. I was playing around with deinterlacing in anticipation of delivery to a progressive scan device that can't deinterlace well. I'm playing with the EEDI2/TDeintv deinterlacing combo, however I've seen this with TomsMoCo, DeInterlaceSmooth as well as some of the regular bob/weave deinterlacers. This is what made me suspect that it's an issue with the source or the capture process, however in retrospect you may be right. If so, uh... what sort(s) of deinterlacers are least sensitive to this sort of thing? In the scene, the groom is moving somewhat quickly through the lighter frame.

I can't see the alleged optical effects at home anywhere outside of the PC, but I have a XBR960 display at work being fed 1080i from a DVDO scalar; I'll take my VCR in and see if that does a better job of resolving this stuff. I'm pretty familiar with optical issues and this just didn't fit with what I would expect in that sort of situation, i.e. where's the purple fringing?