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Photometrical informations

Mean Color
The mean red, green and blue values of the pixels within the region.
Red Variance
The value of the red colorimetric variance.
Green Variance
The value of the green colorimetric variance.
Blue Variance
The value of the blue colorimetric variance.
Squared Error
The value of the squared error of the region.
ExColor
The exred, exblue, exgreen values. The excolor value is the deviation between (2*mean color) and the sum of the mean values of the two others colors. A good indication of whether the region appears color.
Dominant Color
This measure give the dominant color in the region.
Intensity
(Mean Red+Mean Green+Mean Blue)/3. This measure represent the mean intensity of the region.
Hue
The value of the Hue of the region in the HSV space.
Saturation
The value of the Saturation of the region in the HSV space.
First Color Vector
The direction of the first eigen vector in the RGB space.
Second Color Vector
The direction of the second eigen vector in the RGB space.
Third Color Vector
The direction of the third eigen vector in the RGB space.
Principal Axis Infos
Ratio between v1 and v1+v2+v3 where v1 ,v2 and v3 corresponding to the eigen values of the three eigen vectors in the RGB space.
Principal Plane Infos
Ratio between v1+v2 and v1+v2+v3 where v1, v2 and v3 corresponding to the eigen values of the three eigen vectors in the RGB space.

next up previous
Next: Topological informations Up: DesCartes Measurement List Previous: Geometrical Informations
Brun Luc 2005-11-13