---
license: other
license_name: mixed
pretty_name: WSI test data
tags:
  - whole-slide-image
  - pathology
  - digital-pathology
  - test-data
---

# WSI test data

WSI test slides for the [opentile](https://github.com/imi-bigpicture/opentile) test suite, mirrored here for fast, reliable CI downloads. Each slide folder holds a self-contained `metadata.json`; the root `index.json` is the aggregate. Each slide's original source, license, credit and attribution are in its `metadata.json`.

| File | Source | License | Credit |
|---|---|---|---|
| `svs/CMU-1/CMU-1.svs` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/Aperio/CMU-1.svs) | CC0-1.0 | - |
| `ndpi/CMU-1/CMU-1.ndpi` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/Hamamatsu/CMU-1.ndpi) | CC0-1.0 | - |
| `huron/Huron-1/Huron-1.tif` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/Huron/Huron-1.tif) | CC0-1.0 | Huron Digital Pathology |
| `scn/scn1/Leica-1.scn` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/Leica/Leica-1.scn) | distributable | Yves Sucaet |
| `scn/scn2/Leica-2.scn` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/Leica/Leica-2.scn) | distributable | Ira Hensen, CECAD Imaging Facility, Cologne |
| `scn/scn3/Leica-3.scn` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/Leica/Leica-3.scn) | distributable | Ira Hensen, CECAD Imaging Facility, Cologne |
| `argos/Argos-1/Argos-1.avs` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/Argos/Argos-1.avs) | CC0-1.0 | - |
| `argos/Argos-1-Stacked/Argos-1-Stacked.avs` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/Argos/Argos-1-Stacked.avs) | CC0-1.0 | - |
| `qptiff/HandEcompressed/HandEcompressed_Scan1.qptiff` | [source](https://downloads.openmicroscopy.org/images/Vectra-QPTIFF/perkinelmer/PKI_scans/HandEcompressed_Scan1.qptiff) | CC-BY-4.0 | PerkinElmer |
| `qptiff/LuCa-7color/LuCa-7color_Scan1.qptiff` | [source](https://downloads.openmicroscopy.org/images/Vectra-QPTIFF/perkinelmer/PKI_scans/LuCa-7color_Scan1.qptiff) | CC-BY-4.0 | PerkinElmer |

## Licenses

- **CC0-1.0** - public-domain dedication (`LICENSES/CC0-1.0.txt`); no conditions.
- **CC-BY-4.0** - `LICENSES/CC-BY-4.0.txt`; requires attribution, carried in each qptiff slide's `metadata.json` `attribution` field (creator + license link).