# ListImageHashes

Returns a list of image hashes that exist in a specified database.

Type: synchronous

Parameter | Description | Required
--- | --- | ---
`database` | The name of the database that contains the image hashes to list. | Yes
`identifier` | A comma-separated list of identifiers to specify the image hashes to list. If you do not set this parameter, Media Server lists all of the image hashes in the specified database. | No
`imagestatus` | A Boolean value (default false) that specifies whether to return the status of the training image associated with each hash. The status for an image is always `trained`, but you can use this parameter to see the image label and whether the image data is present in the database or has been removed. | No
`maxresults` | The maximum number of image hashes to list. | No
`start` | The starting point for the list when you set the `maxresults` parameter. For example, to start listing entries from the tenth entry in the database, set `start=10`. The entries in the database are indexed from 1. | No

## Example

The following example lists up to 10 image hashes contained in the `ImageHashes` database:

    /action=ListImageHashes&database=ImageHashes
                           &imagestatus=TRUE
                           &start=1
                           &maxresults=10

## Response

The response includes the identifier for each image hash. The `numimages` element always has the value `1`, because you can add only one image to each hash. The image hash is always trained so `numtrained`, `numfailed`, and `numuntrained` always have the values `1`, `0`, and `0` respectively.

If you set the action parameter `imagestatus` to `true`, Media Server returns information about each training image. The `label` element provides the label associated with the image. The `status` element always has the value `trained`. The `hasimagedata` element indicates whether the training image is saved in the database (the image data can be removed with the action NullImageHashImageData).

    <autnresponse>
      <action>LISTIMAGEHASHES</action>
      <response>SUCCESS</response>
      <responsedata>
        <entry>
          <identifier>6d8e53fd92e601a4b8948e1b9397e381</identifier>
          <numimages>1</numimages>
          <numtrained>1</numtrained>
          <numfailed>0</numfailed>
          <numuntrained>0</numuntrained>
          <images>
            <image>
              <label>image1</label>
              <status>trained</status>
              <hasimagedata>true</hasimagedata>
            </image>
          </images>
        </entry>
      </responsedata>
    </autnresponse>

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