├── .gitignore ├── LICENSE ├── README.md ├── capture.py ├── main.go └── requirements.txt /.gitignore: -------------------------------------------------------------------------------- 1 | # Binaries for programs and plugins 2 | *.exe 3 | *.dll 4 | *.so 5 | *.dylib 6 | 7 | # Test binary, build with `go test -c` 8 | *.test 9 | 10 | # Output of the go coverage tool, specifically when used with LiteIDE 11 | *.out 12 | 13 | # Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736 14 | .glide/ 15 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Streaming and recognize people from a webcam with Go and Facebox 2 | 3 | This is the code used in this blog post: https://blog.machinebox.io/streaming-and-recognize-people-from-a-webcam-with-go-and-facebox-acea645b94ab 4 | 5 | # Requirements 6 | 7 | * Go and Python (OpenCV) 8 | * Facebox running in your localhost https://machinebox.io/docs/facebox 9 | -------------------------------------------------------------------------------- /capture.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | import cv2 3 | import imutils 4 | from imutils.video import VideoStream 5 | import time, sys 6 | 7 | 8 | vs = VideoStream(resolution=(320, 240)).start() 9 | time.sleep(1.0) 10 | 11 | while(True): 12 | frame = vs.read() 13 | 14 | #cv2.imshow('frame',frame) 15 | res = bytearray(cv2.imencode(".jpeg", frame)[1]) 16 | size = str(len(res)) 17 | 18 | sys.stdout.write("Content-Type: image/jpeg\r\n") 19 | sys.stdout.write("Content-Length: " + size + "\r\n\r\n") 20 | sys.stdout.write( res ) 21 | sys.stdout.write("\r\n") 22 | sys.stdout.write("--informs\r\n") 23 | 24 | if cv2.waitKey(1) & 0xFF == ord('q'): 25 | break 26 | 27 | cv2.destroyAllWindows() 28 | vs.stop() 29 | -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "bytes" 5 | "fmt" 6 | "io" 7 | "io/ioutil" 8 | "log" 9 | "mime/multipart" 10 | "net/http" 11 | "os/exec" 12 | 13 | "github.com/machinebox/sdk-go/facebox" 14 | ) 15 | 16 | const boundary = "informs" 17 | 18 | var ( 19 | fbox *facebox.Client 20 | ) 21 | 22 | func main() { 23 | http.HandleFunc("/cam", cam) 24 | http.HandleFunc("/camFacebox", camFacebox) 25 | 26 | fbox = facebox.New("http://localhost:8080") 27 | log.Fatal(http.ListenAndServe(":8081", nil)) 28 | } 29 | 30 | func cam(w http.ResponseWriter, r *http.Request) { 31 | w.Header().Set("Content-Type", "multipart/x-mixed-replace; boundary="+boundary) 32 | cmd := exec.CommandContext(r.Context(), "./capture.py") 33 | cmd.Stdout = w 34 | err := cmd.Run() 35 | if err != nil { 36 | log.Println("[ERROR] capturing webcam", err) 37 | } 38 | } 39 | 40 | func camFacebox(w http.ResponseWriter, r *http.Request) { 41 | w.Header().Set("Content-Type", "multipart/x-mixed-replace; boundary="+boundary) 42 | cmd := exec.CommandContext(r.Context(), "./capture.py") 43 | stdout, err := cmd.StdoutPipe() 44 | if err != nil { 45 | log.Println("[ERROR] Getting the stdout pipe") 46 | return 47 | } 48 | cmd.Start() 49 | 50 | mr := multipart.NewReader(stdout, boundary) 51 | for { 52 | p, err := mr.NextPart() 53 | if err == io.EOF { 54 | log.Println("[DEBUG] EOF") 55 | break 56 | } 57 | if err != nil { 58 | log.Println("[ERROR] reading next part", err) 59 | return 60 | } 61 | jp, err := ioutil.ReadAll(p) 62 | if err != nil { 63 | log.Println("[ERROR] reading from bytes ", err) 64 | continue 65 | } 66 | jpReader := bytes.NewReader(jp) 67 | faces, err := fbox.Check(jpReader) 68 | if err != nil { 69 | log.Println("[ERROR] calling facebox", err) 70 | continue 71 | } 72 | for _, face := range faces { 73 | if face.Matched { 74 | fmt.Println("I know you ", face.Name) 75 | } else { 76 | fmt.Println("I DO NOT know you ") 77 | } 78 | } 79 | 80 | // just MJPEG 81 | w.Write([]byte("Content-Type: image/jpeg\r\n")) 82 | w.Write([]byte("Content-Length: " + string(len(jp)) + "\r\n\r\n")) 83 | w.Write(jp) 84 | w.Write([]byte("\r\n")) 85 | w.Write([]byte("--informs\r\n")) 86 | } 87 | cmd.Wait() 88 | } 89 | -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | opencv==3.2.0 2 | imutils==0.4.3 --------------------------------------------------------------------------------