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Learning VirtualDub: The Complete Guide to Capturing, Processing and Encoding Digital Video by Georgios Diamantopoulos, Sohail Salehi

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Dealing with Interlaced Sources

Interlacing is another haunting feature of analogue video. It exists for good reason, yet it has several disadvantages. Before we go into the what and the why, let’s have a look at a picture with interlacing artifacts so we can examine some of their characteristics:

Dealing with Interlaced Sources

This enlarged picture that is part of the landscape seems to be unnatural; it looks like alternate lines of pixels have moved towards the right while their counterparts stand still. Don’t lose trust in your vision: that is exactly what it is! When a video is interlaced, it is split into fields; a field is simply a set of alternate lines of pixels. Consequently, ...

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