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Working with Non-Squared Pixels
Images displayed on a computer monitor are made up of square pixels. Conversely, an image displayed on a video monitor is analog and does not involve pixel shape. Non-square pixels are the most commonly used by encoding devices for video production. When importing an image created by a square-pixel graphics program into a video editing program such as Adobe Premiere, the square pixels are automatically scaled to the non-square pixels for video encoding. This scaling results in a distorted image. By default, non-square pixel documents open with Pixel Aspect Ratio Correction enabled. This enables you to preview how the image will appear on the output device such as a video monitor, and see how it will appear when exported to an analog video device. In keeping with an ever-changing industry, Adobe added three new Pixel Aspect Ratio options: D4/D16 Standard (0.95), HDV Anamorphic (1.333), and D4/D16 Anamorphic (1.0) (
).
Work with Non-Squared Pixels
Click the File menu, and then click New .
On the bottom of the New dialog box, click the Pixel Aspect Ratio list arrow, select any of the non-square pixel settings, and then click OK .
Click the Window menu, point to Arrange , and then click New Window to create a new window for the active document.
Click the Window menu, point to Arrange , and then click Tile to view both images side-by-side.
Select the new window.
Click the View menu, and then click Pixel Aspect Ratio to toggle between corrected view and uncorrected view. (The default is corrected.)The original window shows the corrected aspect ratio, and the new window displays the same document without pixel aspect ratio correction.
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