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# Introduction

The [Open Health Imaging Foundation][ohif-org] (OHIF) Viewer is an open source,
web-based, medical imaging viewer. It can be configured to connect to Image
Archives that support [DicomWeb][dicom-web], and offers support for mapping to
proprietary API formats. OHIF maintained extensions add support for viewing,
annotating, and reporting on DICOM images in 2D (slices) and 3D (volumes).

![OHIF Viewer Screenshot](../assets/img/viewer.png)

<center><i>The <strong>OHIF Viewer</strong>: A general purpose DICOM Viewer (<a href="http://viewer.ohif.org/">Live Demo</a>)</center>

The Open Health Imaging Foundation intends to provide a simple general purpose
DICOM Viewer which can be easily extended for specific uses. If you find
yourself unable to extend the viewer for your purposes, please reach out via our
[GitHub issues][gh-issues]. We are actively seeking feedback on ways to improve
our integration and extension points.

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[ohif-org]: https://www.ohif.org
[dicom-web]: https://en.wikipedia.org/wiki/DICOMweb
[gh-issues]: https://github.com/OHIF/Viewers/issues
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