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Electric Image file format

EIFormat reads and writes 1, 4, 8, and 24 bit depths including alpha channels. The plugin also reads .EIZ ElectricImage Z-buffer depth files (preview of multi-frame EIZ files is not yet implemented).

It was produced at the request of, and with the assistance of, Matt Hoffman of Electric Image.

Albert Kiefer has benchmarked saving a 57MB RGB file (4970x2663 pixels) with both the Adobe EI plugin and this plugin. The Adobe plugin took 10 minutes and 53 seconds; this plugin took 6 seconds - a 100x speedup:

(Test environment: PS7/OS X on Mac G3 with 512MB RAM).

This plugin should also work with other applications that support Photoshop plugins (Daniel Hartlehnert reports that AfterEffects and Commotion can use it to read or write single frames).

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