---
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), [wsidicomizer](https://github.com/imi-bigpicture/wsidicomizer) and [wsidicom](https://github.com/imi-bigpicture/wsidicom) test suites, 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 |
| `svs/JP2K-33003-1/JP2K-33003-1.svs` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/Aperio/JP2K-33003-1.svs) | distributable | - |
| `svs/CMU-1-JP2K-33005/CMU-1-JP2K-33005.svs` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/Aperio/CMU-1-JP2K-33005.svs) | CC0-1.0 | - |
| `mirax/CMU-1/` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/Mirax/CMU-1.zip) | CC0-1.0 | - |
| `isyntax/isyntax1/testslide.isyntax` | [source](https://doi.org/10.5281/zenodo.5037046) | MIT | Bioimage Informatics Group (Ruusuvuori lab) |
| `dicom/3DHISTECH-1/` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/DICOM/3DHISTECH-1.zip) | CC0-1.0 | - |
| `dicom/CMU-1-JP2K-33005/` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/DICOM/CMU-1-JP2K-33005.zip) | CC0-1.0 | - |
| `dicom/JP2K-33003-1/` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/DICOM/JP2K-33003-1.zip) | distributable | - |
| `dicom/Leica-4/` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/DICOM/Leica-4.zip) | CC0-1.0 | - |
| `dicom/Hamamatsu-2/` | [source](https://openslide.cs.cmu.edu/download/openslide-testdata/DICOM/Hamamatsu-2.zip) | CC0-1.0 | - |
| `dicom/Hamamatsu-Case-A/` | [source](ftp://medical.nema.org/MEDICAL/Dicom/DataSets/WG26/WG26Connectathon2023_ECDP/DICOM/Hamamatsu/Case-A) | CC0-1.0 | - |

## 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).
- **MIT** - `LICENSES/MIT.txt`; requires preserving the copyright notice.