Updated OpenCV example to use Python 2.x

Because OpenCV isn't packaged for Python 3.x under Raspbian at the time
of writing (!)

docs/examples/opencv_capture.py

@@ -7,5 +7,6 @@
     camera.resolution = (320, 240)
     camera.framerate = 24
     time.sleep(2)
-    image = np.empty((240, 320, 3), dtype=np.uint8)
+    image = np.empty((240 * 320 * 3,), dtype=np.uint8)
     camera.capture(image, 'bgr')
+    image = image.reshape((240, 320, 3))

docs/recipes1.rst

@@ -478,10 +478,10 @@ contrast with the :attr:`~PiCamera.annotate_background` attribute):
 Controlling the LED
 ===================
 
-In certain circumstances, you may find the camera module's red LED a hindrance.
-For example, in the case of automated close-up wild-life photography, the LED
-may scare off animals. It can also cause unwanted reflected red glare with
-close-up subjects.
+In certain circumstances, you may find the V1 camera module's red LED a
+hindrance (the V2 camera module lacks an LED). For example, in the case of
+automated close-up wild-life photography, the LED may scare off animals. It can
+also cause unwanted reflected red glare with close-up subjects.
 
 One trivial way to deal with this is simply to place some opaque covering on
 the LED (e.g. blue-tack or electricians tape). Another method is to use the

docs/recipes2.rst

@@ -72,7 +72,7 @@ Capturing to an OpenCV object
 
 This is a variation on :ref:`array_capture`. `OpenCV`_ uses numpy arrays as
 images and defaults to colors in planar BGR. Hence, the following is all that's
-required to capture an OpenCV compatible image (under Python 3.x):
+required to capture an OpenCV compatible image:
 
 .. literalinclude:: examples/opencv_capture.py