Operation Manual

10 en | Requirements IVA 4.0
DOC | 4.0 | 2009.06 Operating Manual Bosch Security Systems
If you are specifically looking for moving objects with certain color properties, take the
following into consideration:
– An object is almost never displayed in a consistent color in the image data. Pixels on the
outer edge of a detected object in particular often contain the color information of the
background and not the object.
Objects such as automobiles comprise a variety of parts (body, windows, tires). Each
individual part of the object is displayed in a different color — the mudguards in red, for
example, and the tires in black.
– The color properties of an object depend upon the lighting conditions. If the lighting
conditions in a captured image change, then the captured color of the object will also
change.
Objects on a street appear in different hues depending on the time of day and weather
conditions.
– An object that changes its position or direction of movement may then appear with
different color properties.
For example, automobiles are often marked on the side in color but not on the back.
When people are seen from the front, the hue of the face determines the color
impression; however, if the person turns around, the color properties are then defined by
the hair or headdress.