5

Video Scaling

Chapter Outline

Video comes in different sizes – as anyone who has watched standard definition DVDs on their high resolution HDTVs has no doubt experienced. Each video frame, which consists of lines of pixels, has a different size as shown in Figure 5.1.

image

Figure 5.1

Video has to be resized to view it on different sized displays – this means that the native resolution of the video frame is adjusted to fit the display available. Video resizing or scaling is an increasingly common function used to convert images ...

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