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At the time of writing this document, there are about 171,000 images from the Library of Congress Farm Security Administration/Office of War Information Photograph Collection that were processed for extracting various features like faces, eyes, facial profile, closeups, printed text, presence of Stryker hole, presence of border, mean and standard deviation of grayscale values, subject details, photographer details, and category details. These were computed on XSEDE Comet by using stripped down version of Clowder Extractors or in certain cases, by creating new standalone programs. Integrating this information with Clowder is important to use its features like RESTful API, authentication and authorization, available visualizations, etc.
Database
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Table Descriptions and Converted Sample JSON Documents
The following set of tables contain description about the database tables that contain extracted metadata. Following each database table description is an example JSON document that will be generated by the Extractor Integration Script for that particular table.
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| Sl. No. | Database Column Name | Field Description | Remarks |
|---|---|---|---|
| 1 | id | LOC Index | String; |
| 2 | category | LOC Category number (other_number field in the image JSON document) | String; |
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| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
{
"id": "fsa1997018591",
"category": "F 665"
} |
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