Identify Vehicle Colors

Media Server can detect the color of vehicles identified by vehicle model recognition.

To detect the color of vehicles

  1. Create a new configuration to send to Media Server with the process action, or open an existing configuration that you want to modify.

  2. In the [Session] section, add a new analysis task by setting the EngineN parameter. You can give the task any name, for example:

    [Session]
    Engine0=Ingest
    Engine1=ANPR
    Engine2=VehicleModel
    Engine3=VehicleColor
  3. Create a new section in the configuration file to contain the task settings and set the following parameters:

    Type The analysis engine to use. Set this parameter to ColorCluster.
    Input The image track to process. This must be the ColorRegionWithSource output track from a vehicle recognition task. This track contains a region that can be used to analyze the vehicle's color. You can customize the selection of this region by setting the parameter ColorRegion in your vehicle recognition task, but in most cases the default value provides the greatest accuracy.
    Region A region to process, instead of processing the whole image or video frame. To analyze the region in the input record (the region that contains the vehicle), set this parameter to Input.
    ColorDictionary (Optional but recommended) To match vehicle colors against the colors that are defined in a dictionary, specify a dictionary file. OpenText recommends that you use the supplied dictionary file weightedcarcolors.dat, which is optimized for analyzing color regions derived by the default ColorRegion setting in the vehicle recognition task.
    ColorThreshold (Optional) Any color cluster with a score that does not meet the specified threshold is omitted from the results.
    ColorSpace (Optional) The color space in which the results are provided (RGB, YCbCr, HSL, HSV, CIELAB).

    For example:

    [VehicleColor]
    Type=ColorCluster
    Input=VehicleModel.ColorRegionWithSource
    Region=Input
    ColorDictionary=weightedcarcolors.dat
    ColorThreshold=20

    For more information about the parameters that customize color analysis, refer to the Media Server Reference.

  4. Save and close the configuration file. OpenText recommends that you save your configuration files in the location specified by the ConfigDirectory parameter.