deinterlace after conversion? at DVinfo.net

Robert Bobson · January 24th, 2007, 09:53 AM

a question about workflow:

I want to convert a vob file to deinterlaced avi. I've found I can do both with virtualdub.

Would it be better to convert to avi and save, then deinterlace the avi file?

or do both at the same time?

Bart Walczak · January 25th, 2007, 04:53 AM

Both at the same time. I think it's better to deinterlace before applying any compression algorithm to the file.

Robert Bobson · January 25th, 2007, 06:15 AM

I've been experimenting to find the best settings for deinterlacing.

a new question: the video was shot interlaced, encoded and burned onto a DVD in a VOB file. I'm going to convert these VOBs to AVI and re-edit, then encode to burn onto a DVD for viewing.

Should I deinterlace at all??? what determines when to deinterlace and when not to?

Bart Walczak · January 26th, 2007, 05:35 AM

In this case don't deinterlace.

Generally deinterlacing means loss of resolution and detail and unless you need to ouput progressive footage then don't deinterlace.

Robert M Wright · February 16th, 2007, 09:23 AM

Quote:

Originally Posted by Robert Bobson

Should I deinterlace at all??? what determines when to deinterlace and when not to?

The target display for viewing is what should determine whether or not to deinterlace.

January 24th, 2007, 09:53 AM	#1
Robert Bobson Major Player Join Date: Feb 2003 Location: Bay City, Michigan Posts: 585	deinterlace after conversion? a question about workflow: I want to convert a vob file to deinterlaced avi. I've found I can do both with virtualdub. Would it be better to convert to avi and save, then deinterlace the avi file? or do both at the same time?

January 25th, 2007, 04:53 AM	#2
Bart Walczak Major Player Join Date: Apr 2006 Location: Warsaw/Poland Posts: 716	Both at the same time. I think it's better to deinterlace before applying any compression algorithm to the file.

January 25th, 2007, 06:15 AM	#3
Robert Bobson Major Player Join Date: Feb 2003 Location: Bay City, Michigan Posts: 585	I've been experimenting to find the best settings for deinterlacing. a new question: the video was shot interlaced, encoded and burned onto a DVD in a VOB file. I'm going to convert these VOBs to AVI and re-edit, then encode to burn onto a DVD for viewing. Should I deinterlace at all??? what determines when to deinterlace and when not to?

January 26th, 2007, 05:35 AM	#4
Bart Walczak Major Player Join Date: Apr 2006 Location: Warsaw/Poland Posts: 716	In this case don't deinterlace. Generally deinterlacing means loss of resolution and detail and unless you need to ouput progressive footage then don't deinterlace.