Dataton WATCHOUT User's Guide
Dataton WATCHOUT User's Guide
Dataton WATCHOUT User's Guide
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Transparency<br />
Some image formats include transparency information in addition to the image<br />
itself. This transparency information is sometimes referred to as an “alpha<br />
channel”, although some image editing applications use this term for other<br />
functions (eg, editing masks in Adobe Photoshop). Transparency can be used<br />
to create non-square images, holes inside images or semi-transparent areas,<br />
such as drop shadows. Photoshop, PNG, TIFF and Targa file are examples of<br />
file formats that support transparency.<br />
+ =<br />
Background image.<br />
Image with a transparent background<br />
and a semi-transparent<br />
shadow.<br />
Result when composited in<br />
<strong>WATCHOUT</strong>.<br />
▼ CAUTION: Even if an application supports writing to a particular file format,<br />
it may not support transparency in that format. Perform tests with images<br />
to determine the suitability of particular formats and applications.<br />
Chapter 6: Media Files 61
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