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PiCamera
http://picamera.readthedocs.org/en/release-1.4/
Install:
$ sudo apt-get update $ sudo apt-get install python-picamera
Funktion for Camera Preview:
color effects (0 < u < 255 and 0 < v < 255)
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
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
- preview_fullscreen
- preview_window
- rotation
- saturation
- vflip
- led
Example:
import time import picamera with picamera.PiCamera() as camera: camera.start_preview() try: for j in range(100): camera.preview_fullscreen = False camera.preview_window = (100-j, 100-j, 1000, 500) time.sleep(0.2) finally: camera.stop_preview()