Operation Manual

28 en | IVA 4.0 IVA 4.0
DOC | 4.0 | 2009.06 Operating Manual Bosch Security Systems
Next Step - Define the Color
In this step, you describe the color property of the searched object.
Colors are described in IVA 4.0 using the HSV color model.
– H - Hue
The hue is the color that is reflected from an object. The hue is measured as a position on
the color wheel and is given as a value between 0° and 360°.
– S - Saturation
The saturation is the intensity of the color. It describes the percentage of gray in relation
to the hue and is measured as a percentage value between 0% (gray) and 100% (full
saturation).
– V - Value
The value is the relative degree of brightness or darkness of the color and is measured as
a percentage value between 0% (black) and 100% (white).
In this step, select the colors that describe the searched object, and determine how
accurately the colors must match the object colors.
1 Color cylinder
All colors can only be displayed in 3D. In the illustration, you see a color cylinder from
above, in which the saturation fades from the exterior to the interior and the value fades
from the top to the bottom.
In the color wheel, the tones displayed unshaded are the ones that are to be taken into
account in the search for objects for the marked color (5), in consideration of the
precision (4).
NOTICE!
The graphic displays the maximum spectrum that is taken into account. If several colors are
selected, this spectrum is only taken into account in full if the other colors correspond exactly
to their individual definitions. The greater the deviation, the narrower the spectrum that is
actually taken into account for the individual colors in the search.