===== PiCamera=====

[[http://picamera.readthedocs.org/en/release-1.4/]]\\

==== Installation ====
  $ sudo apt-get update
  $ sudo apt-get install python-picamera

==== Example ====

  >>> import picamera
  >>> camera = picamera.PiCamera()
  >>> camera.start_preview()
  >>> camera.stop_preview()

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====Funktions for the Camera Preview:====
__brightness__ (0<u<100)\\
  camera.brightness = u

__color effects__ (0 < u < 255 and 0 < v < 255)\\
The default value is //None//\\
  camera.color_effects = (u, v)
 

__contrast__ (-100 < u < 100)
  camera.contrast = -i

__crop__ (0.0 - 1.0)
  for i in range(100):
    zoom = i / 100.0
    zoom1 = 1.0 - zoom
    camera.crop = (zoom, zoom, zoom1, zoom1)
    
__framerate__

__hflip__ (False, True)
  camera.vflip = False

__image_effect__\\
Image effect mode options:\\  
none, negative, sketch, denoise, emboss, hatch, gpen, pastel, film, blur, saturation, washedout, posterise, cartoon\\ 
These effects don't work:\\
solarise, oilpaint, watercolour, colourswap, colourpoint, colourbalance\\
  camera.image_effect = 'posterise'
  
__preview_alpha__
  camera.preview_alpha = 100
  
__preview_fullscreen__ (False, True)
  camera.preview_fullscreen = True
  
__preview_window__ (X,Y,width,hight)
  camera.preview_fullscreen = False
  camera.preview_window = (100, 100, 1000, 500)
  
__rotation__ (0, 90, 180, 270)
  camera.rotation = 90
  
__saturation__ (-100 < u < 100)
  camera.saturation = u

__sharpness__ (-100 < u < 100)
  camera.sharpness = u
  
__vflip__  (False, True)
  camera.vflip = False

__exposure__
  cam.exposure_mode = 'off'
  
__AWB__
  cam.awb_mode = 'auto'  


----