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Specifies the region to output to the
ColorRegionWithSource output track, so that you can configure an analysis task to identify the color of the vehicle.
Set this parameter to one of the following values:
front - use this value when the source frames show the front of the vehicle.
back - use this value when the source frames show the rear of the vehicle.
- a custom region (left, top, width, height). The x-axis (the line y=0) is positioned at the vertical mid-point of the main read (the main characters on the number plate). The y-axis (the line x=0) is positioned at the center of the number plate, unless Media Server cannot locate the edges of the number plate in which case the line is positioned at the horizontal mid-point of the main read. Each unit on the y-axis is the same as the read height (the height of the main characters on the number plate). Each unit on the x-axis is equivalent to four times the read height.