@Generated(value="com.amazonaws:aws-java-sdk-code-generator") public class AbstractAmazonRekognition extends Object implements AmazonRekognition
AmazonRekognition
. Convenient method forms pass through to the corresponding
overload that takes a request object, which throws an UnsupportedOperationException
.ENDPOINT_PREFIX
Modifier and Type | Method and Description |
---|---|
CompareFacesResult |
compareFaces(CompareFacesRequest request)
Compares a face in the source input image with each of the 100 largest faces detected in the target
input image.
|
CreateCollectionResult |
createCollection(CreateCollectionRequest request)
Creates a collection in an AWS Region.
|
CreateStreamProcessorResult |
createStreamProcessor(CreateStreamProcessorRequest request)
Creates an Amazon Rekognition stream processor that you can use to detect and recognize faces in a streaming
video.
|
DeleteCollectionResult |
deleteCollection(DeleteCollectionRequest request)
Deletes the specified collection.
|
DeleteFacesResult |
deleteFaces(DeleteFacesRequest request)
Deletes faces from a collection.
|
DeleteStreamProcessorResult |
deleteStreamProcessor(DeleteStreamProcessorRequest request)
Deletes the stream processor identified by
Name . |
DescribeStreamProcessorResult |
describeStreamProcessor(DescribeStreamProcessorRequest request)
Provides information about a stream processor created by .
|
DetectFacesResult |
detectFaces(DetectFacesRequest request)
Detects faces within an image that is provided as input.
|
DetectLabelsResult |
detectLabels(DetectLabelsRequest request)
Detects instances of real-world entities within an image (JPEG or PNG) provided as input.
|
DetectModerationLabelsResult |
detectModerationLabels(DetectModerationLabelsRequest request)
Detects explicit or suggestive adult content in a specified JPEG or PNG format image.
|
DetectTextResult |
detectText(DetectTextRequest request)
Detects text in the input image and converts it into machine-readable text.
|
ResponseMetadata |
getCachedResponseMetadata(AmazonWebServiceRequest request)
Returns additional metadata for a previously executed successful request, typically used for debugging issues
where a service isn't acting as expected.
|
GetCelebrityInfoResult |
getCelebrityInfo(GetCelebrityInfoRequest request)
Gets the name and additional information about a celebrity based on his or her Rekognition ID.
|
GetCelebrityRecognitionResult |
getCelebrityRecognition(GetCelebrityRecognitionRequest request)
Gets the celebrity recognition results for a Rekognition Video analysis started by .
|
GetContentModerationResult |
getContentModeration(GetContentModerationRequest request)
Gets the content moderation analysis results for a Rekognition Video analysis started by .
|
GetFaceDetectionResult |
getFaceDetection(GetFaceDetectionRequest request)
Gets face detection results for a Rekognition Video analysis started by .
|
GetFaceSearchResult |
getFaceSearch(GetFaceSearchRequest request)
Gets the face search results for Rekognition Video face search started by .
|
GetLabelDetectionResult |
getLabelDetection(GetLabelDetectionRequest request)
Gets the label detection results of a Rekognition Video analysis started by .
|
GetPersonTrackingResult |
getPersonTracking(GetPersonTrackingRequest request)
Gets the person tracking results of a Rekognition Video analysis started by .
|
IndexFacesResult |
indexFaces(IndexFacesRequest request)
Detects faces in the input image and adds them to the specified collection.
|
ListCollectionsResult |
listCollections(ListCollectionsRequest request)
Returns list of collection IDs in your account.
|
ListFacesResult |
listFaces(ListFacesRequest request)
Returns metadata for faces in the specified collection.
|
ListStreamProcessorsResult |
listStreamProcessors(ListStreamProcessorsRequest request)
Gets a list of stream processors that you have created with .
|
RecognizeCelebritiesResult |
recognizeCelebrities(RecognizeCelebritiesRequest request)
Returns an array of celebrities recognized in the input image.
|
SearchFacesResult |
searchFaces(SearchFacesRequest request)
For a given input face ID, searches for matching faces in the collection the face belongs to.
|
SearchFacesByImageResult |
searchFacesByImage(SearchFacesByImageRequest request)
For a given input image, first detects the largest face in the image, and then searches the specified collection
for matching faces.
|
void |
setEndpoint(String endpoint)
Overrides the default endpoint for this client ("rekognition.us-east-1.amazonaws.com").
|
void |
setRegion(Region region)
An alternative to
AmazonRekognition.setEndpoint(String) , sets the regional endpoint for this client's
service calls. |
void |
shutdown()
Shuts down this client object, releasing any resources that might be held open.
|
StartCelebrityRecognitionResult |
startCelebrityRecognition(StartCelebrityRecognitionRequest request)
Starts asynchronous recognition of celebrities in a stored video.
|
StartContentModerationResult |
startContentModeration(StartContentModerationRequest request)
Starts asynchronous detection of explicit or suggestive adult content in a stored video.
|
StartFaceDetectionResult |
startFaceDetection(StartFaceDetectionRequest request)
Starts asynchronous detection of faces in a stored video.
|
StartFaceSearchResult |
startFaceSearch(StartFaceSearchRequest request)
Starts the asynchronous search for faces in a collection that match the faces of persons detected in a stored
video.
|
StartLabelDetectionResult |
startLabelDetection(StartLabelDetectionRequest request)
Starts asynchronous detection of labels in a stored video.
|
StartPersonTrackingResult |
startPersonTracking(StartPersonTrackingRequest request)
Starts the asynchronous tracking of persons in a stored video.
|
StartStreamProcessorResult |
startStreamProcessor(StartStreamProcessorRequest request)
Starts processing a stream processor.
|
StopStreamProcessorResult |
stopStreamProcessor(StopStreamProcessorRequest request)
Stops a running stream processor that was created by .
|
public void setEndpoint(String endpoint)
AmazonRekognition
Callers can pass in just the endpoint (ex: "rekognition.us-east-1.amazonaws.com") or a full URL, including the
protocol (ex: "rekognition.us-east-1.amazonaws.com"). If the protocol is not specified here, the default protocol
from this client's ClientConfiguration
will be used, which by default is HTTPS.
For more information on using AWS regions with the AWS SDK for Java, and a complete list of all available endpoints for all AWS services, see: http://developer.amazonwebservices.com/connect/entry.jspa?externalID=3912
This method is not threadsafe. An endpoint should be configured when the client is created and before any service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit or retrying.
setEndpoint
in interface AmazonRekognition
endpoint
- The endpoint (ex: "rekognition.us-east-1.amazonaws.com") or a full URL, including the protocol (ex:
"rekognition.us-east-1.amazonaws.com") of the region specific AWS endpoint this client will communicate
with.public void setRegion(Region region)
AmazonRekognition
AmazonRekognition.setEndpoint(String)
, sets the regional endpoint for this client's
service calls. Callers can use this method to control which AWS region they want to work with.
By default, all service endpoints in all regions use the https protocol. To use http instead, specify it in the
ClientConfiguration
supplied at construction.
This method is not threadsafe. A region should be configured when the client is created and before any service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit or retrying.
setRegion
in interface AmazonRekognition
region
- The region this client will communicate with. See Region.getRegion(com.amazonaws.regions.Regions)
for accessing a given region. Must not be null and must be a region where the service is available.Region.getRegion(com.amazonaws.regions.Regions)
,
Region.createClient(Class, com.amazonaws.auth.AWSCredentialsProvider, ClientConfiguration)
,
Region.isServiceSupported(String)
public CompareFacesResult compareFaces(CompareFacesRequest request)
AmazonRekognition
Compares a face in the source input image with each of the 100 largest faces detected in the target input image.
If the source image contains multiple faces, the service detects the largest face and compares it with each face detected in the target image.
You pass the input and target images either as base64-encoded image bytes or as a references to images in an Amazon S3 bucket. If you use the Amazon CLI to call Amazon Rekognition operations, passing image bytes is not supported. The image must be either a PNG or JPEG formatted file.
In response, the operation returns an array of face matches ordered by similarity score in descending order. For each face match, the response provides a bounding box of the face, facial landmarks, pose details (pitch, role, and yaw), quality (brightness and sharpness), and confidence value (indicating the level of confidence that the bounding box contains a face). The response also provides a similarity score, which indicates how closely the faces match.
By default, only faces with a similarity score of greater than or equal to 80% are returned in the response. You
can change this value by specifying the SimilarityThreshold
parameter.
CompareFaces
also returns an array of faces that don't match the source image. For each face, it
returns a bounding box, confidence value, landmarks, pose details, and quality. The response also returns
information about the face in the source image, including the bounding box of the face and confidence value.
If the image doesn't contain Exif metadata, CompareFaces
returns orientation information for the
source and target images. Use these values to display the images with the correct image orientation.
If no faces are detected in the source or target images, CompareFaces
returns an
InvalidParameterException
error.
This is a stateless API operation. That is, data returned by this operation doesn't persist.
For an example, see faces-compare-images.
This operation requires permissions to perform the rekognition:CompareFaces
action.
compareFaces
in interface AmazonRekognition
public CreateCollectionResult createCollection(CreateCollectionRequest request)
AmazonRekognition
Creates a collection in an AWS Region. You can add faces to the collection using the operation.
For example, you might create collections, one for each of your application users. A user can then index faces
using the IndexFaces
operation and persist results in a specific collection. Then, a user can search
the collection for faces in the user-specific container.
Collection names are case-sensitive.
This operation requires permissions to perform the rekognition:CreateCollection
action.
createCollection
in interface AmazonRekognition
public CreateStreamProcessorResult createStreamProcessor(CreateStreamProcessorRequest request)
AmazonRekognition
Creates an Amazon Rekognition stream processor that you can use to detect and recognize faces in a streaming video.
Rekognition Video is a consumer of live video from Amazon Kinesis Video Streams. Rekognition Video sends analysis results to Amazon Kinesis Data Streams.
You provide as input a Kinesis video stream (Input
) and a Kinesis data stream (Output
)
stream. You also specify the face recognition criteria in Settings
. For example, the collection
containing faces that you want to recognize. Use Name
to assign an identifier for the stream
processor. You use Name
to manage the stream processor. For example, you can start processing the
source video by calling with the Name
field.
After you have finished analyzing a streaming video, use to stop processing. You can delete the stream processor by calling .
createStreamProcessor
in interface AmazonRekognition
public DeleteCollectionResult deleteCollection(DeleteCollectionRequest request)
AmazonRekognition
Deletes the specified collection. Note that this operation removes all faces in the collection. For an example, see delete-collection-procedure.
This operation requires permissions to perform the rekognition:DeleteCollection
action.
deleteCollection
in interface AmazonRekognition
public DeleteFacesResult deleteFaces(DeleteFacesRequest request)
AmazonRekognition
Deletes faces from a collection. You specify a collection ID and an array of face IDs to remove from the collection.
This operation requires permissions to perform the rekognition:DeleteFaces
action.
deleteFaces
in interface AmazonRekognition
public DeleteStreamProcessorResult deleteStreamProcessor(DeleteStreamProcessorRequest request)
AmazonRekognition
Deletes the stream processor identified by Name
. You assign the value for Name
when you
create the stream processor with . You might not be able to use the same name for a stream processor for a few
seconds after calling DeleteStreamProcessor
.
deleteStreamProcessor
in interface AmazonRekognition
public DescribeStreamProcessorResult describeStreamProcessor(DescribeStreamProcessorRequest request)
AmazonRekognition
Provides information about a stream processor created by . You can get information about the input and output streams, the input parameters for the face recognition being performed, and the current status of the stream processor.
describeStreamProcessor
in interface AmazonRekognition
public DetectFacesResult detectFaces(DetectFacesRequest request)
AmazonRekognition
Detects faces within an image that is provided as input.
DetectFaces
detects the 100 largest faces in the image. For each face detected, the operation
returns face details including a bounding box of the face, a confidence value (that the bounding box contains a
face), and a fixed set of attributes such as facial landmarks (for example, coordinates of eye and mouth),
gender, presence of beard, sunglasses, etc.
The face-detection algorithm is most effective on frontal faces. For non-frontal or obscured faces, the algorithm may not detect the faces or might detect faces with lower confidence.
You pass the input image either as base64-encoded image bytes or as a reference to an image in an Amazon S3 bucket. If you use the Amazon CLI to call Amazon Rekognition operations, passing image bytes is not supported. The image must be either a PNG or JPEG formatted file.
This is a stateless API operation. That is, the operation does not persist any data.
For an example, see procedure-detecting-faces-in-images.
This operation requires permissions to perform the rekognition:DetectFaces
action.
detectFaces
in interface AmazonRekognition
public DetectLabelsResult detectLabels(DetectLabelsRequest request)
AmazonRekognition
Detects instances of real-world entities within an image (JPEG or PNG) provided as input. This includes objects like flower, tree, and table; events like wedding, graduation, and birthday party; and concepts like landscape, evening, and nature. For an example, see images-s3.
DetectLabels
does not support the detection of activities. However, activity detection is supported
for label detection in videos. For more information, see .
You pass the input image as base64-encoded image bytes or as a reference to an image in an Amazon S3 bucket. If you use the Amazon CLI to call Amazon Rekognition operations, passing image bytes is not supported. The image must be either a PNG or JPEG formatted file.
For each object, scene, and concept the API returns one or more labels. Each label provides the object name, and the level of confidence that the image contains the object. For example, suppose the input image has a lighthouse, the sea, and a rock. The response will include all three labels, one for each object.
{Name: lighthouse, Confidence: 98.4629}
{Name: rock,Confidence: 79.2097}
{Name: sea,Confidence: 75.061}
In the preceding example, the operation returns one label for each of the three objects. The operation can also return multiple labels for the same object in the image. For example, if the input image shows a flower (for example, a tulip), the operation might return the following three labels.
{Name: flower,Confidence: 99.0562}
{Name: plant,Confidence: 99.0562}
{Name: tulip,Confidence: 99.0562}
In this example, the detection algorithm more precisely identifies the flower as a tulip.
In response, the API returns an array of labels. In addition, the response also includes the orientation
correction. Optionally, you can specify MinConfidence
to control the confidence threshold for the
labels returned. The default is 50%. You can also add the MaxLabels
parameter to limit the number of
labels returned.
If the object detected is a person, the operation doesn't provide the same facial details that the DetectFaces operation provides.
This is a stateless API operation. That is, the operation does not persist any data.
This operation requires permissions to perform the rekognition:DetectLabels
action.
detectLabels
in interface AmazonRekognition
public DetectModerationLabelsResult detectModerationLabels(DetectModerationLabelsRequest request)
AmazonRekognition
Detects explicit or suggestive adult content in a specified JPEG or PNG format image. Use
DetectModerationLabels
to moderate images depending on your requirements. For example, you might
want to filter images that contain nudity, but not images containing suggestive content.
To filter images, use the labels returned by DetectModerationLabels
to determine which types of
content are appropriate. For information about moderation labels, see moderation.
You pass the input image either as base64-encoded image bytes or as a reference to an image in an Amazon S3 bucket. If you use the Amazon CLI to call Amazon Rekognition operations, passing image bytes is not supported. The image must be either a PNG or JPEG formatted file.
detectModerationLabels
in interface AmazonRekognition
public DetectTextResult detectText(DetectTextRequest request)
AmazonRekognition
Detects text in the input image and converts it into machine-readable text.
Pass the input image as base64-encoded image bytes or as a reference to an image in an Amazon S3 bucket. If you use the AWS CLI to call Amazon Rekognition operations, you must pass it as a reference to an image in an Amazon S3 bucket. For the AWS CLI, passing image bytes is not supported. The image must be either a .png or .jpeg formatted file.
The DetectText
operation returns text in an array of elements, TextDetections
. Each
TextDetection
element provides information about a single word or line of text that was detected in
the image.
A word is one or more ISO basic latin script characters that are not separated by spaces. DetectText
can detect up to 50 words in an image.
A line is a string of equally spaced words. A line isn't necessarily a complete sentence. For example, a driver's
license number is detected as a line. A line ends when there is no aligned text after it. Also, a line ends when
there is a large gap between words, relative to the length of the words. This means, depending on the gap between
words, Amazon Rekognition may detect multiple lines in text aligned in the same direction. Periods don't
represent the end of a line. If a sentence spans multiple lines, the DetectText
operation returns
multiple lines.
To determine whether a TextDetection
element is a line of text or a word, use the
TextDetection
object Type
field.
To be detected, text must be within +/- 30 degrees orientation of the horizontal axis.
For more information, see text-detection.
detectText
in interface AmazonRekognition
public GetCelebrityInfoResult getCelebrityInfo(GetCelebrityInfoRequest request)
AmazonRekognition
Gets the name and additional information about a celebrity based on his or her Rekognition ID. The additional information is returned as an array of URLs. If there is no additional information about the celebrity, this list is empty. For more information, see get-celebrity-info-procedure.
This operation requires permissions to perform the rekognition:GetCelebrityInfo
action.
getCelebrityInfo
in interface AmazonRekognition
public GetCelebrityRecognitionResult getCelebrityRecognition(GetCelebrityRecognitionRequest request)
AmazonRekognition
Gets the celebrity recognition results for a Rekognition Video analysis started by .
Celebrity recognition in a video is an asynchronous operation. Analysis is started by a call to which returns a
job identifier (JobId
). When the celebrity recognition operation finishes, Rekognition Video
publishes a completion status to the Amazon Simple Notification Service topic registered in the initial call to
StartCelebrityRecognition
. To get the results of the celebrity recognition analysis, first check
that the status value published to the Amazon SNS topic is SUCCEEDED
. If so, call
GetCelebrityDetection
and pass the job identifier (JobId
) from the initial call to
StartCelebrityDetection
. For more information, see video.
GetCelebrityRecognition
returns detected celebrities and the time(s) they are detected in an array (
Celebrities
) of objects. Each CelebrityRecognition
contains information about the
celebrity in a object and the time, Timestamp
, the celebrity was detected.
By default, the Celebrities
array is sorted by time (milliseconds from the start of the video). You
can also sort the array by celebrity by specifying the value ID
in the SortBy
input
parameter.
The CelebrityDetail
object includes the celebrity identifer and additional information urls. If you
don't store the additional information urls, you can get them later by calling with the celebrity identifer.
No information is returned for faces not recognized as celebrities.
Use MaxResults parameter to limit the number of labels returned. If there are more results than specified in
MaxResults
, the value of NextToken
in the operation response contains a pagination
token for getting the next set of results. To get the next page of results, call
GetCelebrityDetection
and populate the NextToken
request parameter with the token value
returned from the previous call to GetCelebrityRecognition
.
getCelebrityRecognition
in interface AmazonRekognition
public GetContentModerationResult getContentModeration(GetContentModerationRequest request)
AmazonRekognition
Gets the content moderation analysis results for a Rekognition Video analysis started by .
Content moderation analysis of a video is an asynchronous operation. You start analysis by calling . which
returns a job identifier (JobId
). When analysis finishes, Rekognition Video publishes a completion
status to the Amazon Simple Notification Service topic registered in the initial call to
StartContentModeration
. To get the results of the content moderation analysis, first check that the
status value published to the Amazon SNS topic is SUCCEEDED
. If so, call
GetCelebrityDetection
and pass the job identifier (JobId
) from the initial call to
StartCelebrityDetection
. For more information, see video.
GetContentModeration
returns detected content moderation labels, and the time they are detected, in
an array, ModerationLabels
, of objects.
By default, the moderated labels are returned sorted by time, in milliseconds from the start of the video. You
can also sort them by moderated label by specifying NAME
for the SortBy
input
parameter.
Since video analysis can return a large number of results, use the MaxResults
parameter to limit the
number of labels returned in a single call to GetContentModeration
. If there are more results than
specified in MaxResults
, the value of NextToken
in the operation response contains a
pagination token for getting the next set of results. To get the next page of results, call
GetContentModeration
and populate the NextToken
request parameter with the value of
NextToken
returned from the previous call to GetContentModeration
.
For more information, see moderation.
getContentModeration
in interface AmazonRekognition
public GetFaceDetectionResult getFaceDetection(GetFaceDetectionRequest request)
AmazonRekognition
Gets face detection results for a Rekognition Video analysis started by .
Face detection with Rekognition Video is an asynchronous operation. You start face detection by calling which
returns a job identifier (JobId
). When the face detection operation finishes, Rekognition Video
publishes a completion status to the Amazon Simple Notification Service topic registered in the initial call to
StartFaceDetection
. To get the results of the face detection operation, first check that the status
value published to the Amazon SNS topic is SUCCEEDED
. If so, call and pass the job identifier (
JobId
) from the initial call to StartFaceDetection
.
GetFaceDetection
returns an array of detected faces (Faces
) sorted by the time the
faces were detected.
Use MaxResults parameter to limit the number of labels returned. If there are more results than specified in
MaxResults
, the value of NextToken
in the operation response contains a pagination
token for getting the next set of results. To get the next page of results, call GetFaceDetection
and populate the NextToken
request parameter with the token value returned from the previous call to
GetFaceDetection
.
getFaceDetection
in interface AmazonRekognition
public GetFaceSearchResult getFaceSearch(GetFaceSearchRequest request)
AmazonRekognition
Gets the face search results for Rekognition Video face search started by . 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 which returns a job
identifier (JobId
). When the search operation finishes, 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
collections.
The search results are retured in an array, Persons
, of objects. EachPersonMatch
element contains details about the matching faces in the input collection, person information for the matched
person, and the time the person was matched in the video.
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.
getFaceSearch
in interface AmazonRekognition
public GetLabelDetectionResult getLabelDetection(GetLabelDetectionRequest request)
AmazonRekognition
Gets the label detection results of a Rekognition Video analysis started by .
The label detection operation is started by a call to which returns a job identifier (JobId
). When
the label detection operation finishes, Amazon Rekognition publishes a completion status to the Amazon Simple
Notification Service topic registered in the initial call to StartlabelDetection
. To get the results
of the label detection operation, first check that the status value published to the Amazon SNS topic is
SUCCEEDED
. If so, call and pass the job identifier (JobId
) from the initial call to
StartLabelDetection
.
GetLabelDetection
returns an array of detected labels (Labels
) sorted by the time the
labels were detected. You can also sort by the label name by specifying NAME
for the
SortBy
input parameter.
The labels returned include the label name, the percentage confidence in the accuracy of the detected label, and the time the label was detected in the video.
Use MaxResults parameter to limit the number of labels returned. If there are more results than specified in
MaxResults
, the value of NextToken
in the operation response contains a pagination
token for getting the next set of results. To get the next page of results, call GetlabelDetection
and populate the NextToken
request parameter with the token value returned from the previous call to
GetLabelDetection
.
getLabelDetection
in interface AmazonRekognition
public GetPersonTrackingResult getPersonTracking(GetPersonTrackingRequest request)
AmazonRekognition
Gets the person tracking results of a Rekognition Video analysis started by .
The person detection operation is started by a call to StartPersonTracking
which returns a job
identifier (JobId
). When the person detection operation finishes, Rekognition Video publishes a
completion status to the Amazon Simple Notification Service topic registered in the initial call to
StartPersonTracking
.
To get the results of the person tracking operation, first check that the status value published to the Amazon
SNS topic is SUCCEEDED
. If so, call and pass the job identifier (JobId
) from the
initial call to StartPersonTracking
.
GetPersonTracking
returns an array, Persons
, of tracked persons and the time(s) they
were tracked in the video.
By default, the array is sorted by the time(s) a person is tracked in the video. You can sort by tracked persons
by specifying INDEX
for the SortBy
input parameter.
Use the MaxResults
parameter to limit the number of items returned. If there are more results than
specified in MaxResults
, the value of NextToken
in the operation response contains a
pagination token for getting the next set of results. To get the next page of results, call
GetPersonTracking
and populate the NextToken
request parameter with the token value
returned from the previous call to GetPersonTracking
.
getPersonTracking
in interface AmazonRekognition
public IndexFacesResult indexFaces(IndexFacesRequest request)
AmazonRekognition
Detects faces in the input image and adds them to the specified collection.
Amazon Rekognition does not save the actual faces detected. Instead, the underlying detection algorithm first detects the faces in the input image, and for each face extracts facial features into a feature vector, and stores it in the back-end database. Amazon Rekognition uses feature vectors when performing face match and search operations using the and operations.
If you are using version 1.0 of the face detection model, IndexFaces
indexes the 15 largest faces in
the input image. Later versions of the face detection model index the 100 largest faces in the input image. To
determine which version of the model you are using, check the the value of FaceModelVersion
in the
response from IndexFaces
. For more information, see face-detection-model.
If you provide the optional ExternalImageID
for the input image you provided, Amazon Rekognition
associates this ID with all faces that it detects. When you call the operation, the response returns the external
ID. You can use this external image ID to create a client-side index to associate the faces with each image. You
can then use the index to find all faces in an image.
In response, the operation returns an array of metadata for all detected faces. This includes, the bounding box
of the detected face, confidence value (indicating the bounding box contains a face), a face ID assigned by the
service for each face that is detected and stored, and an image ID assigned by the service for the input image.
If you request all facial attributes (using the detectionAttributes
parameter, Amazon Rekognition
returns detailed facial attributes such as facial landmarks (for example, location of eye and mount) and other
facial attributes such gender. If you provide the same image, specify the same collection, and use the same
external ID in the IndexFaces
operation, Amazon Rekognition doesn't save duplicate face metadata.
The input image is passed either as base64-encoded image bytes or as a reference to an image in an Amazon S3 bucket. If you use the Amazon CLI to call Amazon Rekognition operations, passing image bytes is not supported. The image must be either a PNG or JPEG formatted file.
This operation requires permissions to perform the rekognition:IndexFaces
action.
indexFaces
in interface AmazonRekognition
public ListCollectionsResult listCollections(ListCollectionsRequest request)
AmazonRekognition
Returns list of collection IDs in your account. If the result is truncated, the response also provides a
NextToken
that you can use in the subsequent request to fetch the next set of collection IDs.
For an example, see list-collection-procedure.
This operation requires permissions to perform the rekognition:ListCollections
action.
listCollections
in interface AmazonRekognition
public ListFacesResult listFaces(ListFacesRequest request)
AmazonRekognition
Returns metadata for faces in the specified collection. This metadata includes information such as the bounding box coordinates, the confidence (that the bounding box contains a face), and face ID. For an example, see list-faces-in-collection-procedure.
This operation requires permissions to perform the rekognition:ListFaces
action.
listFaces
in interface AmazonRekognition
public ListStreamProcessorsResult listStreamProcessors(ListStreamProcessorsRequest request)
AmazonRekognition
Gets a list of stream processors that you have created with .
listStreamProcessors
in interface AmazonRekognition
public RecognizeCelebritiesResult recognizeCelebrities(RecognizeCelebritiesRequest request)
AmazonRekognition
Returns an array of celebrities recognized in the input image. For more information, see celebrities.
RecognizeCelebrities
returns the 100 largest faces in the image. It lists recognized celebrities in
the CelebrityFaces
array and unrecognized faces in the UnrecognizedFaces
array.
RecognizeCelebrities
doesn't return celebrities whose faces are not amongst the largest 100 faces in
the image.
For each celebrity recognized, the RecognizeCelebrities
returns a Celebrity
object. The
Celebrity
object contains the celebrity name, ID, URL links to additional information, match
confidence, and a ComparedFace
object that you can use to locate the celebrity's face on the image.
Rekognition does not retain information about which images a celebrity has been recognized in. Your application
must store this information and use the Celebrity
ID property as a unique identifier for the
celebrity. If you don't store the celebrity name or additional information URLs returned by
RecognizeCelebrities
, you will need the ID to identify the celebrity in a call to the operation.
You pass the imput image either as base64-encoded image bytes or as a reference to an image in an Amazon S3 bucket. If you use the Amazon CLI to call Amazon Rekognition operations, passing image bytes is not supported. The image must be either a PNG or JPEG formatted file.
For an example, see celebrities-procedure-image.
This operation requires permissions to perform the rekognition:RecognizeCelebrities
operation.
recognizeCelebrities
in interface AmazonRekognition
public SearchFacesResult searchFaces(SearchFacesRequest request)
AmazonRekognition
For a given input face ID, searches for matching faces in the collection the face belongs to. You get a face ID when you add a face to the collection using the IndexFaces operation. The operation compares the features of the input face with faces in the specified collection.
You can also search faces without indexing faces by using the SearchFacesByImage
operation.
The operation response returns an array of faces that match, ordered by similarity score with the highest
similarity first. More specifically, it is an array of metadata for each face match that is found. Along with the
metadata, the response also includes a confidence
value for each face match, indicating the
confidence that the specific face matches the input face.
For an example, see search-face-with-id-procedure.
This operation requires permissions to perform the rekognition:SearchFaces
action.
searchFaces
in interface AmazonRekognition
public SearchFacesByImageResult searchFacesByImage(SearchFacesByImageRequest request)
AmazonRekognition
For a given input image, first detects the largest face in the image, and then searches the specified collection for matching faces. The operation compares the features of the input face with faces in the specified collection.
To search for all faces in an input image, you might first call the operation, and then use the face IDs returned in subsequent calls to the operation.
You can also call the DetectFaces
operation and use the bounding boxes in the response to make face
crops, which then you can pass in to the SearchFacesByImage
operation.
You pass the input image either as base64-encoded image bytes or as a reference to an image in an Amazon S3 bucket. If you use the Amazon CLI to call Amazon Rekognition operations, passing image bytes is not supported. The image must be either a PNG or JPEG formatted file.
The response returns an array of faces that match, ordered by similarity score with the highest similarity first.
More specifically, it is an array of metadata for each face match found. Along with the metadata, the response
also includes a similarity
indicating how similar the face is to the input face. In the response,
the operation also returns the bounding box (and a confidence level that the bounding box contains a face) of the
face that Amazon Rekognition used for the input image.
For an example, see search-face-with-image-procedure.
This operation requires permissions to perform the rekognition:SearchFacesByImage
action.
searchFacesByImage
in interface AmazonRekognition
public StartCelebrityRecognitionResult startCelebrityRecognition(StartCelebrityRecognitionRequest request)
AmazonRekognition
Starts asynchronous recognition of celebrities in a stored video.
Rekognition Video can detect celebrities in a video must be stored in an Amazon S3 bucket. Use Video to
specify the bucket name and the filename of the video. StartCelebrityRecognition
returns a job
identifier (JobId
) which you use to get the results of the analysis. When celebrity recognition
analysis is finished, Rekognition Video publishes a completion status to the Amazon Simple Notification Service
topic that you specify in NotificationChannel
. To get the results of the celebrity recognition
analysis, first check that the status value published to the Amazon SNS topic is SUCCEEDED
. If so,
call and pass the job identifier (JobId
) from the initial call to
StartCelebrityRecognition
. For more information, see celebrities.
startCelebrityRecognition
in interface AmazonRekognition
public StartContentModerationResult startContentModeration(StartContentModerationRequest request)
AmazonRekognition
Starts asynchronous detection of explicit or suggestive adult content in a stored video.
Rekognition Video can moderate content in a video stored in an Amazon S3 bucket. Use Video to specify the
bucket name and the filename of the video. StartContentModeration
returns a job identifier (
JobId
) which you use to get the results of the analysis. When content moderation analysis is
finished, Rekognition Video publishes a completion status to the Amazon Simple Notification Service topic that
you specify in NotificationChannel
.
To get the results of the content moderation analysis, first check that the status value published to the Amazon
SNS topic is SUCCEEDED
. If so, call and pass the job identifier (JobId
) from the
initial call to StartContentModeration
. For more information, see moderation.
startContentModeration
in interface AmazonRekognition
public StartFaceDetectionResult startFaceDetection(StartFaceDetectionRequest request)
AmazonRekognition
Starts asynchronous detection of faces in a stored video.
Rekognition Video can detect faces in a video stored in an Amazon S3 bucket. Use Video to specify the
bucket name and the filename of the video. StartFaceDetection
returns a job identifier (
JobId
) that you use to get the results of the operation. When face detection is finished,
Rekognition Video publishes a completion status to the Amazon Simple Notification Service topic that you specify
in NotificationChannel
. To get the results of the label detection operation, first check that the
status value published to the Amazon SNS topic is SUCCEEDED
. If so, call and pass the job identifier
(JobId
) from the initial call to StartFaceDetection
. For more information, see
faces-video.
startFaceDetection
in interface AmazonRekognition
public StartFaceSearchResult startFaceSearch(StartFaceSearchRequest request)
AmazonRekognition
Starts the asynchronous search for faces in a collection that match the faces of persons detected in a stored video.
The video must be stored in an Amazon S3 bucket. Use Video to specify the bucket name and the filename of
the video. StartFaceSearch
returns a job identifier (JobId
) which you use to get the
search results once the search has completed. When searching is finished, Rekognition Video publishes a
completion status to the Amazon Simple Notification Service topic that you specify in
NotificationChannel
. To get the search results, first check that the status value published to the
Amazon SNS topic is SUCCEEDED
. If so, call and pass the job identifier (JobId
) from the
initial call to StartFaceSearch
. For more information, see collections-search-person.
startFaceSearch
in interface AmazonRekognition
public StartLabelDetectionResult startLabelDetection(StartLabelDetectionRequest request)
AmazonRekognition
Starts asynchronous detection of labels in a stored video.
Rekognition Video can detect labels in a video. Labels are instances of real-world entities. This includes objects like flower, tree, and table; events like wedding, graduation, and birthday party; concepts like landscape, evening, and nature; and activities like a person getting out of a car or a person skiing.
The video must be stored in an Amazon S3 bucket. Use Video to specify the bucket name and the filename of
the video. StartLabelDetection
returns a job identifier (JobId
) which you use to get
the results of the operation. When label detection is finished, Rekognition Video publishes a completion status
to the Amazon Simple Notification Service topic that you specify in NotificationChannel
.
To get the results of the label detection operation, first check that the status value published to the Amazon
SNS topic is SUCCEEDED
. If so, call and pass the job identifier (JobId
) from the
initial call to StartLabelDetection
.
startLabelDetection
in interface AmazonRekognition
public StartPersonTrackingResult startPersonTracking(StartPersonTrackingRequest request)
AmazonRekognition
Starts the asynchronous tracking of persons in a stored video.
Rekognition Video can track persons in a video stored in an Amazon S3 bucket. Use Video to specify the
bucket name and the filename of the video. StartPersonTracking
returns a job identifier (
JobId
) which you use to get the results of the operation. When label detection is finished, Amazon
Rekognition publishes a completion status to the Amazon Simple Notification Service topic that you specify in
NotificationChannel
.
To get the results of the person detection operation, first check that the status value published to the Amazon
SNS topic is SUCCEEDED
. If so, call and pass the job identifier (JobId
) from the
initial call to StartPersonTracking
.
startPersonTracking
in interface AmazonRekognition
public StartStreamProcessorResult startStreamProcessor(StartStreamProcessorRequest request)
AmazonRekognition
Starts processing a stream processor. You create a stream processor by calling . To tell
StartStreamProcessor
which stream processor to start, use the value of the Name
field
specified in the call to CreateStreamProcessor
.
startStreamProcessor
in interface AmazonRekognition
public StopStreamProcessorResult stopStreamProcessor(StopStreamProcessorRequest request)
AmazonRekognition
Stops a running stream processor that was created by .
stopStreamProcessor
in interface AmazonRekognition
public void shutdown()
AmazonRekognition
shutdown
in interface AmazonRekognition
public ResponseMetadata getCachedResponseMetadata(AmazonWebServiceRequest request)
AmazonRekognition
Response metadata is only cached for a limited period of time, so if you need to access this extra diagnostic information for an executed request, you should use this method to retrieve it as soon as possible after executing a request.
getCachedResponseMetadata
in interface AmazonRekognition
request
- The originally executed request.Copyright © 2013 Amazon Web Services, Inc. All Rights Reserved.