first commit

Author: blueskymobile

adrian.jpg

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+"""
+Django settings for cvApi project.
+
+Generated by 'django-admin startproject' using Django 1.10.4.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/1.10/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/1.10/ref/settings/
+"""
+
+import os
+
+# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/1.10/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = '-gsgh@v@@5h*_l1a$m_=d-e((w!0ny1v-z)5vt5rag33b88d*d'
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = []
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+]
+
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+]
+
+ROOT_URLCONF = 'cvApi.urls'
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = 'cvApi.wsgi.application'
+
+
+# Database
+# https://docs.djangoproject.com/en/1.10/ref/settings/#databases
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/1.10/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/1.10/topics/i18n/
+
+LANGUAGE_CODE = 'en-us'
+
+TIME_ZONE = 'UTC'
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/1.10/howto/static-files/
+
+STATIC_URL = '/static/'

cvApi/__init__.py

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+"""cvApi URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/1.10/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.conf.urls import url, include
+    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
+"""
+from django.conf.urls import url, include
+from django.contrib import admin
+
+urlpatterns = [
+    url(r'^admin/', admin.site.urls),
+    url(r'^face_detection/', include('face_detector.urls')),
+]

cvApi/__init__.pyc

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+"""
+WSGI config for cvApi project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/1.10/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "cvApi.settings")
+
+application = get_wsgi_application()

cvApi/settings.py

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+from django.contrib import admin
+
+# Register your models here.

cvApi/settings.pyc

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+from __future__ import unicode_literals
+
+from django.apps import AppConfig
+
+
+class FaceDetectorConfig(AppConfig):
+    name = 'face_detector'

cvApi/urls.py

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+from __future__ import unicode_literals
+
+from django.db import models
+
+# Create your models here.

cvApi/urls.pyc

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+from django.test import TestCase
+
+# Create your tests here.

cvApi/wsgi.py

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+"""cvApi URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/1.10/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.conf.urls import url, include
+    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
+"""
+from django.conf.urls import url, include
+from django.contrib import admin
+from . import views
+urlpatterns = [
+    url(r'^detect/', views.detect, name="detect"),
+]

cvApi/wsgi.pyc

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+# import the necessary packages
+from django.views.decorators.csrf import csrf_exempt
+from django.http import JsonResponse
+import numpy as np
+import urllib
+import json
+import cv2
+import os
+
+# define the path to the face detector
+FACE_DETECTOR_PATH = "{base_path}/cascades/haarcascade_frontalface_default.xml".format(
+	base_path=os.path.abspath(os.path.dirname(__file__)))
+
+@csrf_exempt
+def detect(request):
+	# initialize the data dictionary to be returned by the request
+	data = {"success": False}
+
+	# check to see if this is a post request
+	if request.method == "POST":
+		# check to see if an image was uploaded
+		if request.FILES.get("image", None) is not None:
+			# grab the uploaded image
+			image = _grab_image(stream=request.FILES["image"])
+
+		# otherwise, assume that a URL was passed in
+		else:
+			# grab the URL from the request
+			url = request.POST.get("url", None)
+
+			# if the URL is None, then return an error
+			if url is None:
+				data["error"] = "No URL provided."
+				return JsonResponse(data)
+
+			# load the image and convert
+			image = _grab_image(url=url)
+
+		# convert the image to grayscale, load the face cascade detector,
+		# and detect faces in the image
+		image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
+		detector = cv2.CascadeClassifier(FACE_DETECTOR_PATH)
+		rects = detector.detectMultiScale(image, scaleFactor=1.1, minNeighbors=5,
+			minSize=(30, 30), flags=cv2.cv.CV_HAAR_SCALE_IMAGE)
+
+		# construct a list of bounding boxes from the detection
+		rects = [(int(x), int(y), int(x + w), int(y + h)) for (x, y, w, h) in rects]
+
+		# update the data dictionary with the faces detected
+		data.update({"num_faces": len(rects), "faces": rects, "success": True})
+
+	# return a JSON response
+	return JsonResponse(data)
+
+def _grab_image(path=None, stream=None, url=None):
+	# if the path is not None, then load the image from disk
+	if path is not None:
+		image = cv2.imread(path)
+
+	# otherwise, the image does not reside on disk
+	else:	
+		# if the URL is not None, then download the image
+		if url is not None:
+			resp = urllib.urlopen(url)
+			data = resp.read()
+
+		# if the stream is not None, then the image has been uploaded
+		elif stream is not None:
+			data = stream.read()
+
+		# convert the image to a NumPy array and then read it into
+		# OpenCV format
+		image = np.asarray(bytearray(data), dtype="uint8")
+		image = cv2.imdecode(image, cv2.IMREAD_COLOR)
+ 
+	# return the image
+	return image

db.sqlite3

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+#!/usr/bin/env python
+import os
+import sys
+
+if __name__ == "__main__":
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "cvApi.settings")
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError:
+        # The above import may fail for some other reason. Ensure that the
+        # issue is really that Django is missing to avoid masking other
+        # exceptions on Python 2.
+        try:
+            import django
+        except ImportError:
+            raise ImportError(
+                "Couldn't import Django. Are you sure it's installed and "
+                "available on your PYTHONPATH environment variable? Did you "
+                "forget to activate a virtual environment?"
+            )
+        raise
+    execute_from_command_line(sys.argv)

face_detector/__init__.py

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+# import the necessary packages
+import requests
+import cv2
+
+# define the URL to our face detection API
+url = "http://localhost:8000/face_detection/detect/"
+
+# use our face detection API to find faces in images via image URL
+image = cv2.imread("obama.jpg")
+payload = {"url": "http://www.pyimagesearch.com/wp-content/uploads/2015/05/obama.jpg"}
+r = requests.post(url, data=payload).json()
+print "obama.jpg: {}".format(r)
+
+# loop over the faces and draw them on the image
+for (startX, startY, endX, endY) in r["faces"]:
+	cv2.rectangle(image, (startX, startY), (endX, endY), (0, 255, 0), 2)
+
+# show the output image
+cv2.imshow("obama.jpg", image)
+cv2.waitKey(0)
+
+# load our image and now use the face detection API to find faces in
+# images by uploading an image directly
+image = cv2.imread("adrian.jpg")
+payload = {"image": open("adrian.jpg", "rb")}
+r = requests.post(url, files=payload).json()
+print "adrian.jpg: {}".format(r)
+
+# loop over the faces and draw them on the image
+for (startX, startY, endX, endY) in r["faces"]:
+	cv2.rectangle(image, (startX, startY), (endX, endY), (0, 255, 0), 2)
+
+# show the output image
+cv2.imshow("adrian.jpg", image)
+cv2.waitKey(0)