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Motion Detection
API
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Installation
- Install your camera using the provided Hawking Camera
installation disk. Sorry, I do not have an open source
alternative to this Windows-only installation program. The
installer will search for cameras directly attached (via wired cable)
to your network and it will allow you to set up the wireless settings
such as the SSID, WEP keys, etc.
- For a quick and simple GUI, run the HawkingCameraPanel main
program: "java -jar jhawkingcam.jar
net.sf.jhawkingcam.HawkingCameraPanel"
- To archive images, run the CameraArchiver main
program. It takes the name of a property file on the command
line. The property file can be on the CLASSPATH, in which case it
is automatically located, or you can give the full pathname to the
property file: "java -cp jhawkingcam.jar
net.sf.jhawkingcam.CameraArchiver camera.properties"
Properties
The camera.properties file can contain the following
properties:
- archiveFilenamePattern - string defining filename
for saved images may use ${host} for camera ip or host name, ${month}
for two digit month, ${day} for two digit day in month, ${monthName}
for full month name, ${hour} for 00-23 hour or day, ${minute} for two
digit minute of the hour and ${second} for two digit second in the
minute. Any directories in the pattern will be created using
File.mkdirs() if they don't exist already.
- captureInterval - time between image captures in
milliseconds, defaults to 1000ms
- hostname - ip address or host name of camera
- password - password to log in to camera
- username - username to log in to camera home page
- resolution - camera resolution to use: P640, P320
or P160, defaults to P640
- motionDetector - true to only capture images when
motion is detected (requires Java Advanced Imaging API - JAI), defaults
to true
- preMotionBuffer - number of milliseconds worth of
images to store before motion starts (limited to memory size), default
to 10000
- postMotionBuffer - number of milliseconds worth of
images to store once motion has stopped, defaults to 10000
- motionTimeout - number of milliseconds of "quiet"
before we decide there's no motion anymore, defaults to 10000
- rotation - angle in degrees to rotate the
image. This is useful if you need to mount the camera upside
down. Set rotation=180 in this case
- motionThreshold - percentage difference between a
frame and the previous frame in order for motion to be detected
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