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Rekognition test
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package main | |
import ( | |
"bufio" | |
"fmt" | |
"github.com/aws/aws-sdk-go/aws" | |
"github.com/aws/aws-sdk-go/aws/session" | |
"github.com/aws/aws-sdk-go/service/rekognition" | |
"github.com/blackjack/webcam" | |
"os" | |
) | |
type frameSizes []webcam.FrameSize | |
var ( | |
sess *session.Session | |
svc *rekognition.Rekognition | |
) | |
func init() { | |
var err error | |
sess, err = session.NewSession(&aws.Config{Region: aws.String("us-east-1")}) | |
if err != nil { | |
fmt.Println("failed to create session,", err) | |
return | |
} | |
svc = rekognition.New(sess) | |
} | |
func main() { | |
cam, err := webcam.Open("/dev/video0") | |
if err != nil { | |
panic(err.Error()) | |
} | |
defer cam.Close() | |
formatDesc := cam.GetSupportedFormats() | |
var formats []webcam.PixelFormat | |
for f := range formatDesc { | |
formats = append(formats, f) | |
} | |
format := formats[1] | |
frames := frameSizes(cam.GetSupportedFrameSizes(format)) | |
size := frames[2] | |
f, w, h, err := cam.SetImageFormat(format, uint32(size.MaxWidth), uint32(size.MaxHeight)) | |
if err != nil { | |
panic(err.Error()) | |
} else { | |
fmt.Fprintf(os.Stderr, "Resulting image format: %s (%dx%d)\n", formatDesc[f], w, h) | |
} | |
err = cam.StartStreaming() | |
if err != nil { | |
panic(err.Error()) | |
} | |
fmt.Println("Press enter to process") | |
for { | |
timeout := uint32(5) //5 seconds | |
err = cam.WaitForFrame(timeout) | |
switch err.(type) { | |
case nil: | |
case *webcam.Timeout: | |
fmt.Fprint(os.Stderr, err.Error()) | |
continue | |
default: | |
panic(err.Error()) | |
} | |
bufio.NewReader(os.Stdin).ReadBytes('\n') | |
frame, err := cam.ReadFrame() | |
if len(frame) != 0 { | |
params := &rekognition.DetectFacesInput{ | |
Image: &rekognition.Image{ // Required | |
Bytes: frame, | |
}, | |
Attributes: []*string{ | |
aws.String("ALL"), // Required | |
}, | |
} | |
resp, err := svc.DetectFaces(params) | |
if err != nil { | |
// Print the error, cast err to awserr.Error to get the Code and | |
// Message from an error. | |
fmt.Println(err.Error()) | |
return | |
} | |
// Pretty-print the response data. | |
for i, fd := range resp.FaceDetails { | |
fmt.Printf("The person %v is ", i) | |
for _, e := range fd.Emotions { | |
fmt.Printf("%v, ", *e.Type) | |
} | |
fmt.Printf("\n") | |
} | |
} else if err != nil { | |
panic(err.Error()) | |
} | |
} | |
} |
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