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    • Computational Photography Project for Pill Identification (C3PI)

    Metadata Updated: July 17, 2025

    The Computational Photography Project for Pill Identification (C3PI) was sunset in 2018. No new images will be added to the collection. Identifiers for pills will not be updated. Images and metadata are for research and development purposes only.

    The Computational Photography Project for Pill Identification (C3PI) created the RxIMAGE database of freely available high-quality digital images of prescription pills and associated data for use in conducting computer vision research in text- and image-based search and retrieval. Photographs of pills for the RxIMAGE database were taken under laboratory lighting conditions, from a camera directly above the front and the back faces of the pill, at high resolution, and using specialized digital macro-photography techniques. Image segmentation algorithms were then applied to create the JPEG images in the database.

    Historical information about the project is available in the NLM archive at https://wayback.archive-it.org/7867/20190423182937/https:/lhncbc.nlm.nih.gov/project/c3pi-computational-photography-project-pill-identification.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date March 16, 2021
    Metadata Updated Date July 17, 2025

    Metadata Source

    Harvested from Healthdata.gov

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date March 16, 2021
    Metadata Updated Date July 17, 2025
    Publisher National Library of Medicine
    Maintainer
    Identifier https://datadiscovery.nlm.nih.gov/api/views/5jdf-gdqh
    Data First Published 2020-08-06
    Data Last Modified 2025-07-16
    Category Chemicals and Drugs
    Public Access Level public
    Bureau Code 009:25
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://healthdata.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 6fe487d7-ad4b-4b10-aacf-4b3068ce6671
    Harvest Source Id 651e43b2-321c-4e4c-b86a-835cfc342cb0
    Harvest Source Title Healthdata.gov
    Homepage URL https://datadiscovery.nlm.nih.gov/d/5jdf-gdqh
    License http://opendefinition.org/licenses/odc-odbl/
    Program Code 009:041
    Source Datajson Identifier True
    Source Hash 8b99217761f95e033cd57cec7e2fabd5891d1f3c0f34b122fab776c942f356c7
    Source Schema Version 1.1

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