amazonka-rekognition-2.0: Amazon Rekognition SDK.
Copyright(c) 2013-2023 Brendan Hay
LicenseMozilla Public License, v. 2.0.
MaintainerBrendan Hay
Stabilityauto-generated
Portabilitynon-portable (GHC extensions)
Safe HaskellSafe-Inferred
LanguageHaskell2010

Amazonka.Rekognition.GetFaceSearch

Description

Gets the face search results for Amazon Rekognition Video face search started by StartFaceSearch. The search returns faces in a collection that match the faces of persons detected in a video. It also includes the time(s) that faces are matched in the video.

Face search in a video is an asynchronous operation. You start face search by calling to StartFaceSearch which returns a job identifier (JobId). When the search operation finishes, Amazon Rekognition Video publishes a completion status to the Amazon Simple Notification Service topic registered in the initial call to StartFaceSearch. To get the search results, first check that the status value published to the Amazon SNS topic is SUCCEEDED. If so, call GetFaceSearch and pass the job identifier (JobId) from the initial call to StartFaceSearch.

For more information, see Searching Faces in a Collection in the Amazon Rekognition Developer Guide.

The search results are retured in an array, Persons, of PersonMatch objects. EachPersonMatch element contains details about the matching faces in the input collection, person information (facial attributes, bounding boxes, and person identifer) for the matched person, and the time the person was matched in the video.

GetFaceSearch only returns the default facial attributes (BoundingBox, Confidence, Landmarks, Pose, and Quality). The other facial attributes listed in the Face object of the following response syntax are not returned. For more information, see FaceDetail in the Amazon Rekognition Developer Guide.

By default, the Persons array is sorted by the time, in milliseconds from the start of the video, persons are matched. You can also sort by persons by specifying INDEX for the SORTBY input parameter.

Synopsis

Creating a Request

data GetFaceSearch Source #

See: newGetFaceSearch smart constructor.

Constructors

GetFaceSearch' 

Fields

  • maxResults :: Maybe Natural

    Maximum number of results to return per paginated call. The largest value you can specify is 1000. If you specify a value greater than 1000, a maximum of 1000 results is returned. The default value is 1000.

  • nextToken :: Maybe Text

    If the previous response was incomplete (because there is more search results to retrieve), Amazon Rekognition Video returns a pagination token in the response. You can use this pagination token to retrieve the next set of search results.

  • sortBy :: Maybe FaceSearchSortBy

    Sort to use for grouping faces in the response. Use TIMESTAMP to group faces by the time that they are recognized. Use INDEX to sort by recognized faces.

  • jobId :: Text

    The job identifer for the search request. You get the job identifier from an initial call to StartFaceSearch.

Instances

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ToJSON GetFaceSearch Source # 
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ToHeaders GetFaceSearch Source # 
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ToPath GetFaceSearch Source # 
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ToQuery GetFaceSearch Source # 
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AWSRequest GetFaceSearch Source # 
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Associated Types

type AWSResponse GetFaceSearch #

Generic GetFaceSearch Source # 
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Associated Types

type Rep GetFaceSearch :: Type -> Type #

Read GetFaceSearch Source # 
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Show GetFaceSearch Source # 
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NFData GetFaceSearch Source # 
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Methods

rnf :: GetFaceSearch -> () #

Eq GetFaceSearch Source # 
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Hashable GetFaceSearch Source # 
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type AWSResponse GetFaceSearch Source # 
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type Rep GetFaceSearch Source # 
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type Rep GetFaceSearch = D1 ('MetaData "GetFaceSearch" "Amazonka.Rekognition.GetFaceSearch" "amazonka-rekognition-2.0-EaCrS9R3rWADqefEZvOx5B" 'False) (C1 ('MetaCons "GetFaceSearch'" 'PrefixI 'True) ((S1 ('MetaSel ('Just "maxResults") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Natural)) :*: S1 ('MetaSel ('Just "nextToken") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text))) :*: (S1 ('MetaSel ('Just "sortBy") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe FaceSearchSortBy)) :*: S1 ('MetaSel ('Just "jobId") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 Text))))

newGetFaceSearch Source #

Create a value of GetFaceSearch with all optional fields omitted.

Use generic-lens or optics to modify other optional fields.

The following record fields are available, with the corresponding lenses provided for backwards compatibility:

$sel:maxResults:GetFaceSearch', getFaceSearch_maxResults - Maximum number of results to return per paginated call. The largest value you can specify is 1000. If you specify a value greater than 1000, a maximum of 1000 results is returned. The default value is 1000.

GetFaceSearch, getFaceSearch_nextToken - If the previous response was incomplete (because there is more search results to retrieve), Amazon Rekognition Video returns a pagination token in the response. You can use this pagination token to retrieve the next set of search results.

$sel:sortBy:GetFaceSearch', getFaceSearch_sortBy - Sort to use for grouping faces in the response. Use TIMESTAMP to group faces by the time that they are recognized. Use INDEX to sort by recognized faces.

$sel:jobId:GetFaceSearch', getFaceSearch_jobId - The job identifer for the search request. You get the job identifier from an initial call to StartFaceSearch.

Request Lenses

getFaceSearch_maxResults :: Lens' GetFaceSearch (Maybe Natural) Source #

Maximum number of results to return per paginated call. The largest value you can specify is 1000. If you specify a value greater than 1000, a maximum of 1000 results is returned. The default value is 1000.

getFaceSearch_nextToken :: Lens' GetFaceSearch (Maybe Text) Source #

If the previous response was incomplete (because there is more search results to retrieve), Amazon Rekognition Video returns a pagination token in the response. You can use this pagination token to retrieve the next set of search results.

getFaceSearch_sortBy :: Lens' GetFaceSearch (Maybe FaceSearchSortBy) Source #

Sort to use for grouping faces in the response. Use TIMESTAMP to group faces by the time that they are recognized. Use INDEX to sort by recognized faces.

getFaceSearch_jobId :: Lens' GetFaceSearch Text Source #

The job identifer for the search request. You get the job identifier from an initial call to StartFaceSearch.

Destructuring the Response

data GetFaceSearchResponse Source #

See: newGetFaceSearchResponse smart constructor.

Constructors

GetFaceSearchResponse' 

Fields

  • jobStatus :: Maybe VideoJobStatus

    The current status of the face search job.

  • nextToken :: Maybe Text

    If the response is truncated, Amazon Rekognition Video returns this token that you can use in the subsequent request to retrieve the next set of search results.

  • persons :: Maybe [PersonMatch]

    An array of persons, PersonMatch, in the video whose face(s) match the face(s) in an Amazon Rekognition collection. It also includes time information for when persons are matched in the video. You specify the input collection in an initial call to StartFaceSearch. Each Persons element includes a time the person was matched, face match details (FaceMatches) for matching faces in the collection, and person information (Person) for the matched person.

  • statusMessage :: Maybe Text

    If the job fails, StatusMessage provides a descriptive error message.

  • videoMetadata :: Maybe VideoMetadata

    Information about a video that Amazon Rekognition analyzed. Videometadata is returned in every page of paginated responses from a Amazon Rekognition Video operation.

  • httpStatus :: Int

    The response's http status code.

Instances

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Generic GetFaceSearchResponse Source # 
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Associated Types

type Rep GetFaceSearchResponse :: Type -> Type #

Read GetFaceSearchResponse Source # 
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Show GetFaceSearchResponse Source # 
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NFData GetFaceSearchResponse Source # 
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rnf :: GetFaceSearchResponse -> () #

Eq GetFaceSearchResponse Source # 
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type Rep GetFaceSearchResponse Source # 
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type Rep GetFaceSearchResponse = D1 ('MetaData "GetFaceSearchResponse" "Amazonka.Rekognition.GetFaceSearch" "amazonka-rekognition-2.0-EaCrS9R3rWADqefEZvOx5B" 'False) (C1 ('MetaCons "GetFaceSearchResponse'" 'PrefixI 'True) ((S1 ('MetaSel ('Just "jobStatus") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe VideoJobStatus)) :*: (S1 ('MetaSel ('Just "nextToken") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text)) :*: S1 ('MetaSel ('Just "persons") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe [PersonMatch])))) :*: (S1 ('MetaSel ('Just "statusMessage") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text)) :*: (S1 ('MetaSel ('Just "videoMetadata") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe VideoMetadata)) :*: S1 ('MetaSel ('Just "httpStatus") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 Int)))))

newGetFaceSearchResponse Source #

Create a value of GetFaceSearchResponse with all optional fields omitted.

Use generic-lens or optics to modify other optional fields.

The following record fields are available, with the corresponding lenses provided for backwards compatibility:

$sel:jobStatus:GetFaceSearchResponse', getFaceSearchResponse_jobStatus - The current status of the face search job.

GetFaceSearch, getFaceSearchResponse_nextToken - If the response is truncated, Amazon Rekognition Video returns this token that you can use in the subsequent request to retrieve the next set of search results.

$sel:persons:GetFaceSearchResponse', getFaceSearchResponse_persons - An array of persons, PersonMatch, in the video whose face(s) match the face(s) in an Amazon Rekognition collection. It also includes time information for when persons are matched in the video. You specify the input collection in an initial call to StartFaceSearch. Each Persons element includes a time the person was matched, face match details (FaceMatches) for matching faces in the collection, and person information (Person) for the matched person.

GetFaceSearchResponse, getFaceSearchResponse_statusMessage - If the job fails, StatusMessage provides a descriptive error message.

$sel:videoMetadata:GetFaceSearchResponse', getFaceSearchResponse_videoMetadata - Information about a video that Amazon Rekognition analyzed. Videometadata is returned in every page of paginated responses from a Amazon Rekognition Video operation.

$sel:httpStatus:GetFaceSearchResponse', getFaceSearchResponse_httpStatus - The response's http status code.

Response Lenses

getFaceSearchResponse_nextToken :: Lens' GetFaceSearchResponse (Maybe Text) Source #

If the response is truncated, Amazon Rekognition Video returns this token that you can use in the subsequent request to retrieve the next set of search results.

getFaceSearchResponse_persons :: Lens' GetFaceSearchResponse (Maybe [PersonMatch]) Source #

An array of persons, PersonMatch, in the video whose face(s) match the face(s) in an Amazon Rekognition collection. It also includes time information for when persons are matched in the video. You specify the input collection in an initial call to StartFaceSearch. Each Persons element includes a time the person was matched, face match details (FaceMatches) for matching faces in the collection, and person information (Person) for the matched person.

getFaceSearchResponse_statusMessage :: Lens' GetFaceSearchResponse (Maybe Text) Source #

If the job fails, StatusMessage provides a descriptive error message.

getFaceSearchResponse_videoMetadata :: Lens' GetFaceSearchResponse (Maybe VideoMetadata) Source #

Information about a video that Amazon Rekognition analyzed. Videometadata is returned in every page of paginated responses from a Amazon Rekognition Video operation.