Module to detect motion in a sequence of images.' This module provides an interface to a motion detection implementation taken from the webcam-capture package by Bartosz Firyn (SarXos), available from: https://github.com/sarxos/webcam-capture. The webcam-capture package is licensed under the MIT License.
The filter architecture follows the pattern defined by Jerry Huxtable in the JH Labs Java Image Processing library, available from: http://www.jhlabs.com/ip/filters and licensed under the Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0).
- Version:
- $$Id$$
- Source:
Methods
(static) area()
Return a percentage of area covered by motion in the most recently provided image, where 0 means no motion and 100 means full image motion.
Returns:
The percentage of area covered by motion.
(static) cog()
Return an array of two numbers giving the center of gravity of the detected motion in pixel coordinates, or return null if no motion has been detected.
Returns:
The center of gravity of motion.
(static) filter(image, options)
Invoke the motion detector on the specified image with the specified options and return the result. Any unrecognized options are ignored. Note that previously applied options for a given filter will still be used, even if they are not set in this call. If this is the first image provided, then no motion is detected. Otherwise, the image is compared against the one previously passed to this same function.
Parameters:
| Name | Type | Description |
|---|---|---|
image |
The image to filter. |
|
options |
An object whose fields specify filter options. |
Returns:
The filtered image.