From 29d861e10548e25339e24cfd2db1e3a9fc748e41 Mon Sep 17 00:00:00 2001
From: David Runge <david.runge@frqrec.com>
Date: Sat, 15 Feb 2014 01:32:28 +0100
Subject: Adding random241*.py files to subdirectory

---
 entropy_harvester/random241.py | 68 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100755 entropy_harvester/random241.py

(limited to 'entropy_harvester/random241.py')

diff --git a/entropy_harvester/random241.py b/entropy_harvester/random241.py
new file mode 100755
index 0000000..f5268d5
--- /dev/null
+++ b/entropy_harvester/random241.py
@@ -0,0 +1,68 @@
+#!/usr/bin/python2
+
+import cv
+import time
+import numpy as np
+import logging
+import random241arg as arg
+import random241sensor as sensor
+import random241osc as osc
+
+showStream = False
+stop_key = 0
+capture = True
+camNumber = 1
+time_delta = 60 * 60 / 2
+logging.basicConfig(filename='random241.log',
+                    format='%(asctime)s %(message)s',
+                    filemode='w', level=logging.INFO)
+last_time = time.time()
+
+# Read parameters
+params = arg.read_params()
+# Define which cam to use, etc.
+#cam = sensor.capture(params['-c'], showStream)
+
+# Get frame and size information from camera
+cam = cv.CaptureFromCAM(camNumber)
+frame = cv.QueryFrame(cam)
+if frame is not None:
+    frame_size = cv.GetSize(frame)
+    logging.info('Grabbing random numbers from: %dx%dpx.',
+                 frame_size[0], frame_size[1])
+
+    # Get matrix with values from frame
+    mat = cv.GetMat(frame)
+    frame_values = np.asarray(mat)
+    # Create grayscale image
+    gray_values = sensor.bgr2gray(frame_values)
+
+    # Define the time to run the test
+    time_delta = time_delta + time.time()
+
+    # Setup OSC
+    #osc.connect_to_server('beagleclone', 57120)
+    osc.connect_to_server('127.0.0.1', 57120)
+
+    # Main loop for accessing the camera and calculating random numbers from it
+    #while True:
+    while time_delta > time.time():
+#        last_time = time.time()
+        img = cv.QueryFrame(cam)
+        # Get a numpy array with rgb values
+        mat_from_frame = sensor.frame_to_mat(img)
+        gray_mat = sensor.bgr2gray(mat_from_frame)
+        randomness = sensor.harvest_entropy(gray_mat)
+        if randomness is not None:
+            delta = time.time() - last_time
+            last_time = time.time()
+            osc.send_msg(delta, randomness)
+        if showStream:
+            while stop_key != ord("q"):
+                cv.ShowImage("Americium 241", img)
+                key = cv.WaitKey(2)
+
+    #time.sleep(5)
+    #random241sensor.set_capture(False)
+else:
+    logging.error('Connect camera %d first!', camNumber)
-- 
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