HarborBiometrics

HarborBiometrics leverages open source biometric recognition (OpenBR) to conduct 1:1 face match verification, 1:N face match identification, and age and gender estimation for EthVentures' Harbor project. It's built on top of the DockerOpenBR, and implements a simple Flask application to handle verification, identification, and estimation requests.

Build Image

Add your own name and tag:

docker build -t [name]:[tag] .

Run Container

Set --restart on-failure so container recovers from fatal errors in OpenBR:

docker run -d -p 5000:5000 --restart on-failure [IMAGE_ID]

Import Modules (Python Example)

from base64 import b64encode
from json import loads,dumps
from urllib2 import Request, urlopen

Resize Image

Resize a photo to (300 x proportional h):

## Resize Image
try:
  ## retrieve image from device
  query = open('image.jpeg').read()

  ## base64 encode image
  ## include image filename
  data = {'image':b64encode(query),'format':'jpeg'}

  ## Set request
  req = Request('http://localhost:5000/api/v1.0/image/resize')
  req.add_header('Content-Type', 'application/json')

  ## Post and parse response
  resp = urlopen(req, dumps(data))

  content = resp.read()
  print content
except Exception as e:
  print e

Save Image

Capture a photo and send it to server:

## Save Image
try:
  ## retrieve image from device
  query = open('image.jpeg').read()

  ## base64 encode image
  ## include image filename
  data = {'image':b64encode(query),'filename':'mynewimage.jpeg'}

  ## Set request
  req = Request('http://localhost:5000/api/v1.0/image/save')
  req.add_header('Content-Type', 'application/json')

  ## Post and parse response
  resp = urlopen(req, dumps(data))

  content = resp.read()
  print content
except Exception as e:
  print e

Get Image

Retrieve base64 encoded image from server:

## Retrieve Image
try:
  ## Set filename
  data = {'filename':'bush1.jpeg'}

  ## Set request
  req = Request('http://localhost:5000/api/v1.0/image/get')
  req.add_header('Content-Type', 'application/json')

  ## Post and parse response
  resp = urlopen(req, dumps(data))

  content = resp.read()
  print content
except Exception as e:
  print e

Remove Image

Remove an image from the server:

## Remove Image
try:
  ## set filename
  data = {'filename':'mynewimage.jpeg'}

  ## Set request
  req = Request('http://localhost:5000/api/v1.0/image/delete')
  req.add_header('Content-Type', 'application/json')

  ## Post and parse response
  resp = urlopen(req, dumps(data))

  content = resp.read()
  print content
except Exception as e:
  print e

1:1 Face Match Verification

Compare two images. Requires a query and target:

## Query API (wrap in try-catch)
try:
    ## Grab a couple images
    ## Avail. in DockerOpenBR/images or use own
    query = open('bush1.jpeg').read()
    target = open('bush2.jpeg').read()

    ## base64 encode images
    data = {'query':b64encode(query),'target':b64encode(target)}

    ## Set request
    req = Request('http://localhost:5000/api/v1.0/verification')
    req.add_header('Content-Type', 'application/json')

    ## Post and parse response
    resp = urlopen(req, dumps(data))
    content = resp.read()
    print loads(content)

except Exception as e:
    ## Print exceptions
    print e

1:N Face Match Identification

Find top 5 images that best match a query:

## Query API (wrap in try-catch)
try:
    ## Grab an image of Bush from
    ## your preferred search engine.  
    query = open('bush3.jpg').read()

    data = {'query':b64encode(query)}

    req = Request('http://localhost:5000/api/v1.0/identification')
    req.add_header('Content-Type', 'application/json')

    resp = urlopen(req, dumps(data))

    content = resp.read()
    print content
except Exception as e:
    print e

Age/Gender Estimation

To perform gender estimation, just change the endpoint to "gender":

## Query API (wrap in try-catch)
try:
    query = open('bush1.jpeg').read()

    data = {'query':b64encode(query)}

    req = Request('http://localhost:5000/api/v1.0/estimation/age')
    req.add_header('Content-Type', 'application/json')

    resp = urlopen(req, dumps(data))

    content = resp.read()
    print content
except Exception as e:
    print e

Team