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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/aws/signer/v4"
"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 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. These details include 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),
// pose, presence of facial occlusion, and so on. The face-detection algorithm is
// most effective on frontal faces. For non-frontal or obscured faces, the
// algorithm might 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 AWS 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. This operation requires
// permissions to perform the rekognition:DetectFaces action.
func (c *Client) DetectFaces(ctx context.Context, params *DetectFacesInput, optFns ...func(*Options)) (*DetectFacesOutput, error) {
if params == nil {
params = &DetectFacesInput{}
}
result, metadata, err := c.invokeOperation(ctx, "DetectFaces", params, optFns, c.addOperationDetectFacesMiddlewares)
if err != nil {
return nil, err
}
out := result.(*DetectFacesOutput)
out.ResultMetadata = metadata
return out, nil
}
type DetectFacesInput struct {
// The input image as base64-encoded bytes or an S3 object. If you use the AWS CLI
// to call Amazon Rekognition operations, passing base64-encoded image bytes is not
// supported. 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
// An array of facial attributes you want to be returned. A DEFAULT subset of
// facial attributes - BoundingBox , Confidence , Pose , Quality , and Landmarks -
// will always be returned. You can request for specific facial attributes (in
// addition to the default list) - by using [ "DEFAULT", "FACE_OCCLUDED" ] or just [
// "FACE_OCCLUDED" ]. You can request for all facial attributes by using [ "ALL"] .
// Requesting more attributes may increase response time. If you provide both,
// ["ALL", "DEFAULT"] , the service uses a logical "AND" operator to determine
// which attributes to return (in this case, all attributes). Note that while the
// FaceOccluded and EyeDirection attributes are supported when using DetectFaces ,
// they aren't supported when analyzing videos with StartFaceDetection and
// GetFaceDetection .
Attributes []types.Attribute
noSmithyDocumentSerde
}
type DetectFacesOutput struct {
// Details of each face found in the image.
FaceDetails []types.FaceDetail
// The value of OrientationCorrection is always null. If the input image is in
// .jpeg format, it might contain exchangeable image file format (Exif) metadata
// that includes the image's orientation. Amazon Rekognition uses this orientation
// information to perform image correction. The bounding box coordinates are
// translated to represent object locations after the orientation information in
// the Exif metadata is used to correct the image orientation. Images in .png
// format don't contain Exif metadata. Amazon Rekognition doesn’t perform image
// correction for images in .png format and .jpeg images without orientation
// information in the image Exif metadata. The bounding box coordinates aren't
// translated and represent the object locations before the image is rotated.
OrientationCorrection types.OrientationCorrection
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationDetectFacesMiddlewares(stack *middleware.Stack, options Options) (err error) {
if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
return err
}
err = stack.Serialize.Add(&awsAwsjson11_serializeOpDetectFaces{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpDetectFaces{}, middleware.After)
if err != nil {
return err
}
if err := addProtocolFinalizerMiddlewares(stack, options, "DetectFaces"); 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 = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
return err
}
if err = addRetryMiddlewares(stack, options); err != nil {
return err
}
if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
return err
}
if err = awsmiddleware.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 = addOpDetectFacesValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDetectFaces(options.Region), middleware.Before); err != nil {
return err
}
if err = awsmiddleware.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_opDetectFaces(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
OperationName: "DetectFaces",
}
}
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