The term pixel aspect ratio is often abbreviated as PAR. Essentially, it is talking about the shape of the pixels—the ratio of the width to the height. What pixel aspect ratios are used in video? In this video, author Richard Harrington explains what pixel aspect ratios are and how that influences motion graphics for video.
- As you get more advanced with video graphics,…you may come across the phrase pixel aspect ratio,…or the letters P-A-R, again for pixel aspect ratio.…This is describing the relationship…between the width and the height.…Now, with traditional computer graphics,…the width and the height match.…Pixels are square, but this isn't often the case…with many video formats.…For example, in order to have greater flexibility…in a lot of professional video cameras,…they use different pixel aspect ratio.…
For example, a very popular format…in the early days of HD was DVC Pro HD.…And instead of using 1920x1080,…it would use 1440x1080, saving on space.…The pixels were then stretched or decompressed…when you opened up the file,…or played it back on a television.…This meant that a lower data rate format was used…to capture the high definition signal…because fewer pixels meant that more content…fit onto the memory card.…
Now for a variety of technical reasons,…different video camera manufacturers continue to use…non-square pixels.…
Author
Released
9/22/2017- When to use vector vs. raster graphics
- Working with high-dynamic-range images
- Choosing the right color space
- Understanding file extensions and file formats
- Maintaining broadcast-safe color and luminance levels
- Configuring Photoshop and Illustrator workspaces and preferences
- Using templates
- Building titles
- Sizing photos or logos
- Saving Photoshop and Illustrator files for video graphics
Skill Level Intermediate
Duration
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Introduction
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Welcome1m 24s
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1. Core Technology for Video Graphics
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What is pixel aspect ratio?6m 41s
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2. Broadcast-Safe Issues
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Reading scopes in a NLE3m 4s
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3. Setting Up Photoshop for a Video Workflow
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4. Setting Up Illustrator for a Video Workflow
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Conclusion
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Next steps1m 4s
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Video: What is pixel aspect ratio?