User Manual

33 File Format Specifications
This chapter contains specifications and notes that are useful when you are importing or
exporting specific file formats.
• Specifications for Graphics (Image) Files
• Specifications for Animation Files
• Specifications for Importing OMFI Files
• Working with BWF Files
• Field Ordering in Graphic Imports and Exports
For more information on importing and exporting, see “Importing Files” on page 281, “Import
Settings” on page 1414, “Exporting Frames, Clips, or Sequences” on page 1005, and “Export
Settings” on page 1382.
Specifications for Graphics (Image) Files
Import Specifications for Supported Graphics File Formats
The following table contains specifications for the graphics file formats that your Avid editing
application can import.
Bit depth refers to the color-depth resolution of the image. 2-bit images display in black and
white. 8-bit images display in 256 colors. 16-bit images display in thousands of colors. 24-bit
images display in millions of colors. 32-bit images display in millions of colors with an alpha
channel.
An alpha channel determines regions of transparency in the picture when it is keyed over a
background. An alpha channel must be straight and not premultiplied. Your Avid editing
application does not properly import premultiplied alphas.