Ventana format

Format
single-file pyramidal tiled BigTIFF with non-standard metadata and overlaps
File extensions
.bif, .tif
OpenSlide vendor backend
ventana

Detection

Ventana slides are stored in single-file BigTIFF format. OpenSlide will detect a file as Ventana if:

  1. The file is TIFF.
  2. The XMP tag contains valid XML.
  3. The XML contains an iScan element, either as the root element or as a child of a Metadata root element.

To open Ventana files, OpenSlide must be built with libtiff 4 or above.

Associated Images

macro
the TIFF directory whose ImageDescription is Label Image or Label_Image
thumbnail
the TIFF directory whose ImageDescription is Thumbnail

Known Properties

All XML attributes in the iScan element are represented as properties prefixed with “ventana.”.

openslide.mpp-x
normalized ventana.ScanRes
openslide.mpp-y
normalized ventana.ScanRes
openslide.objective-power
normalized ventana.Magnification

Test Data

http://openslide.cs.cmu.edu/download/openslide-testdata/Ventana/