User Manual

Specifications for Graphics (Image) Files
1455
Before you import a graphics file, you can also use third-party image-editing software to make
adjustments such as the following:
• Create the file in the appropriate size, resolution, and bit depth.
• Crop or color-correct an image.
• Eliminate jagged edges in an image by using the image-editing application’s anti-aliasing or
high-quality option.
• Add transparency (to some formats) by adding an alpha channel.
• In some cases, convert an image file that does not support an alpha channel to a format that
does, in order to add transparency.
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You can import and key the image over video by using key effects within your Avid editing
application. However, importing an image with an existing alpha channel provides the best
results.
For more information, see the documentation for your image-editing software.
Color mode RGB
ITU-R 601
ITU-R 709
Other formats, including CMYK, can cause import errors.
ITU-R 601 is used for SD and ITU-R 709 is used for HD. In HD
projects, your Avid editing application automatically converts the
media.
File format Various Your Avid editing application accepts many file formats for input.
TIFF (.tif), PICT (.pct), and PNG (.png) are commonly used formats.
See “Import Specifications for Supported Graphics File Formats” on
page 1451.
File field order Odd (Upper field first)
Even (Lower field
first)
For interlaced media, your Avid editing application uses the
following order:
• NTSC (601 and DV): lower field first
• PAL 601: upper field first
• PAL DV: lower field first
• HD Interlaced: upper field first
If the field order of the graphic is not correct, select the field order of
the graphic during import and your Avid editing application will
reverse the fields appropriately.
Field order does not apply to progressive media. See “Field Ordering
in Graphic Imports and Exports” on page 1465.
Aspect Requirement Notes