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Luminosity

A library for accessing Adobe Lightroom catalogs.

Here's something you can do with the output - Lightroom Catalog Visualization with Go and d3 .

Documentation is available on godoc.org.

Capabilities

  • Produce summary statistics on a variety of dimensions - photos shot by day, by camera and lens, by aperture or exposure, etc...
  • Produce hierarchical summaries for rendering Sunburst charts with the accompanying JavaScript code (see above)
  • Extract JPEG previews from the catalog preview cache
  • Purge sidecar files with the CLI commands

Origins

This library began as a very simple script to purge sidecar files from disk. The bulk of my photography is travel photography, and for my current setup I usually don't bring a laptop - I travel with an iPad and a WD My Passport Wireless Pro backup device, which is basically a portable wifi NAS with SD card backup.

The Passport device can serve access to the downloaded photos - it's slow, but it's sufficient for basic review, and for selecting highlights to post while travelling, but it doesn't support RAW files. Therefore, I shoot in RAW+JPG while travelling, and when I return and back everything up to my Synology I purge the sidecar files.

Since every Lightroom catalog is actually a Sqlite database file, running SQL queries to extract the sidecar paths was trivial - that ensures that I'm not deleting any images that were shot as JPG only.

Since then, the codebase has evolved significantly thanks to my interests in data visualization.

Reference

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A go library for accessing Adobe Lightroom catalogs

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