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Article ID: NWS1267 — Created: 26 Jul 2019 — Reviewed: 1 Sep 2020
What are EasyZoom (SZI) images?
EasyZoom is a product of Smart in Media. The SZI file is a single-file storage format container for Whole Slide Images. The EasyZoom image file contains every layer of a Deep Zoom image pyramid along with all of the supporting XML and thumbnail images.
Whole slide images can get quite large (20+ GigaBytes) and can include over 100,000 individual image files. Due to the size and number of files, copying or moving them can take a very long time.
The primary advantage of the SZI file format is that copy time is significantly reduced since only a single, large file (and not thousands of small files) must be managed.