Orthanc for Whole-Slide Imaging
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General
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* Command-line tool to extract a subregion of a WSI as a PNG/JPEG image
* Thoroughly test sparse tiling (both in encoder and decoder)
* Display physical scale in Web viewer
* Viewer: Configure how missing tiles are displayed for sparse tiling


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IIIF
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* For the moment, the IIIF support of the WSI plugin only supports
  level 0 of Image API Compliance. Consider implementing level 1:
  https://iiif.io/api/image/3.0/compliance/
  https://discourse.orthanc-server.org/t/found-some-bugs-on-orthanc-wsi/6431


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Testing
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* Integration tests for photometric interpretations
  (https://orthanc.uclouvain.be/bugs/show_bug.cgi?id=144) => all
  possibilities (2x2x3) with "--rencode", "--pyramid", "--compression"
  X all possible input photometric interpretations (6 = PNG, JPEG, PNG
  grayscale, TIFF RGB, TIFF YCbCr, TIFF grayscale)


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Documentation
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* Doxygen Documentation
* Document the REST API in the Orthanc Book (/wsi/pyramids and /wsi/tiles)


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Packaging
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