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ENH: Improve DICOM reading performance
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- Improve tag caching performance. There were unnecessary database queries due to looking up cache entries twice and looking up SOP instance UID for file. Also reduced some code duplication by factoring out reading of DICOM tags from files into a new helper function (readValueFromFile).
- Add API to get first file or instance of a series.
- Cache DatabaseDirectory to avoid recomputing it each time a file path is converted between relative and absolute.
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@lassoan
lassoan committed Apr 8, 2021
1 parent 7622d09 commit f758191
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