Deinterlace in Virtualdub

[ntonix]

Hi there, I've captured videos from PAL VCR at 352x576,RGB24,Picvideo Q19 using Virtualdub.

1. Do I have to deinterlace it first using Vdub's internal deinterlacing filter before resizing it to 352x288 to get better VCD result with CCE ?
2. Why's that using RGB24 to capture videos consumed less processor power than YUV in Virtualdub ?

Thanks.

[Tommyknocker]

When Should I Deinterlace?

As I mentioned earlier, each field in an interlaced video comes from a different point in time. Therefore, interlaced video can be thought of as running at 60 fields/sec or 50 fields/sec rather than 30 fps or 25 fps. An interlaced display is capable of displaying each field separately. Because of this, an interlaced video will play much more smoothly than a progressive video when using an interlaced display. Therefore, if you're planning to watch your output video on a TV (through an SVCD, for example), it's best to leave your video as interlaced.

On the other hand, if you want to watch your video on a progressive computer monitor, it's a good idea to deinterlace your video. Because a progressive display updates both fields of a frame at once, you won't see the increased smoothness of interlaced video that occurs on an interlaced display. Instead you'll see interlacing artifacts, which don't look very good. That's why it's recommended to deinterlace your video if you'll be watching it on a computer.

This quote comes fromLuke's Video Guide, wow, what a reference!