Gets the text detection results of a Amazon Rekognition Video analysis started by StartTextDetection
Gets the text detection results of a Amazon Rekognition Video analysis
started by start_text_detection.
Text detection with Amazon Rekognition Video is an asynchronous
operation. You start text detection by calling
start_text_detection which returns
a job identifier (JobId) When the text detection operation finishes,
Amazon Rekognition publishes a completion status to the Amazon Simple
Notification Service topic registered in the initial call to
start_text_detection. To get the
results of the text detection operation, first check that the status
value published to the Amazon SNS topic is SUCCEEDED. if so, call
get_text_detection and pass the job
identifier (JobId) from the initial call of
start_label_detection.
get_text_detection returns an array
of detected text (TextDetections) sorted by the time the text was
detected, up to 50 words per frame of video.
Each element of the array includes the detected text, the precentage confidence in the acuracy of the detected text, the time the text was detected, bounding box information for where the text was located, and unique identifiers for words and their lines.
Use MaxResults parameter to limit the number of text detections
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 get_text_detection and
populate the NextToken request parameter with the token value returned
from the previous call to
get_text_detection.
rekognition_get_text_detection(JobId, MaxResults, NextToken)
JobId |
[required] Job identifier for the text detection operation for which you want
results returned. You get the job identifer from an initial call to
|
MaxResults |
Maximum number of results to return per paginated call. The largest value you can specify is 1000. |
NextToken |
If the previous response was incomplete (because there are more labels to retrieve), Amazon Rekognition Video returns a pagination token in the response. You can use this pagination token to retrieve the next set of text. |
A list with the following syntax:
list(
JobStatus = "IN_PROGRESS"|"SUCCEEDED"|"FAILED",
StatusMessage = "string",
VideoMetadata = list(
Codec = "string",
DurationMillis = 123,
Format = "string",
FrameRate = 123.0,
FrameHeight = 123,
FrameWidth = 123
),
TextDetections = list(
list(
Timestamp = 123,
TextDetection = list(
DetectedText = "string",
Type = "LINE"|"WORD",
Id = 123,
ParentId = 123,
Confidence = 123.0,
Geometry = list(
BoundingBox = list(
Width = 123.0,
Height = 123.0,
Left = 123.0,
Top = 123.0
),
Polygon = list(
list(
X = 123.0,
Y = 123.0
)
)
)
)
)
),
NextToken = "string",
TextModelVersion = "string"
)svc$get_text_detection( JobId = "string", MaxResults = 123, NextToken = "string" )
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