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// Code generated by smithy-go-codegen DO NOT EDIT.
package rekognition
import (
"context"
"fmt"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/service/rekognition/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// 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 TextDetection 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 script characters that are not separated by spaces.
// DetectText can detect up to 100 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 +/- 90 degrees orientation of the
// horizontal axis.
//
// For more information, see Detecting text in the Amazon Rekognition Developer
// Guide.
func (c *Client) DetectText(ctx context.Context, params *DetectTextInput, optFns ...func(*Options)) (*DetectTextOutput, error) {
if params == nil {
params = &DetectTextInput{}
}
result, metadata, err := c.invokeOperation(ctx, "DetectText", params, optFns, c.addOperationDetectTextMiddlewares)
if err != nil {
return nil, err
}
out := result.(*DetectTextOutput)
out.ResultMetadata = metadata
return out, nil
}
type DetectTextInput struct {
// The input image as base64-encoded bytes or an Amazon S3 object. If you use the
// AWS CLI to call Amazon Rekognition operations, you can't pass image bytes.
//
// If you are using an AWS SDK to call Amazon Rekognition, you might not need to
// base64-encode image bytes passed using the Bytes field. For more information,
// see Images in the Amazon Rekognition developer guide.
//
// This member is required.
Image *types.Image
// Optional parameters that let you set the criteria that the text must meet to be
// included in your response.
Filters *types.DetectTextFilters
noSmithyDocumentSerde
}
type DetectTextOutput struct {
// An array of text that was detected in the input image.
TextDetections []types.TextDetection
// The model version used to detect text.
TextModelVersion *string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationDetectTextMiddlewares(stack *middleware.Stack, options Options) (err error) {
if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
return err
}
err = stack.Serialize.Add(&awsAwsjson11_serializeOpDetectText{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpDetectText{}, middleware.After)
if err != nil {
return err
}
if err := addProtocolFinalizerMiddlewares(stack, options, "DetectText"); err != nil {
return fmt.Errorf("add protocol finalizers: %v", err)
}
if err = addlegacyEndpointContextSetter(stack, options); err != nil {
return err
}
if err = addSetLoggerMiddleware(stack, options); err != nil {
return err
}
if err = addClientRequestID(stack); err != nil {
return err
}
if err = addComputeContentLength(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = addComputePayloadSHA256(stack); err != nil {
return err
}
if err = addRetry(stack, options); err != nil {
return err
}
if err = addRawResponseToMetadata(stack); err != nil {
return err
}
if err = addRecordResponseTiming(stack); err != nil {
return err
}
if err = addClientUserAgent(stack, options); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
return err
}
if err = addTimeOffsetBuild(stack, c); err != nil {
return err
}
if err = addUserAgentRetryMode(stack, options); err != nil {
return err
}
if err = addOpDetectTextValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDetectText(options.Region), middleware.Before); err != nil {
return err
}
if err = addRecursionDetection(stack); err != nil {
return err
}
if err = addRequestIDRetrieverMiddleware(stack); err != nil {
return err
}
if err = addResponseErrorMiddleware(stack); err != nil {
return err
}
if err = addRequestResponseLogging(stack, options); err != nil {
return err
}
if err = addDisableHTTPSMiddleware(stack, options); err != nil {
return err
}
return nil
}
func newServiceMetadataMiddleware_opDetectText(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
OperationName: "DetectText",
}
}
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