OOF2: The Manual
| DeltaHSV (DeltaHSV) | ||
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6.5.2. Subclasses |  |
Name
DeltaHSV (DeltaHSV) — Range of colors in hue, saturation, and value space.
Synopsis
DeltaHSV(delta_hue,delta_saturation,delta_value)
Details
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Base class:
ColorDifference -
Parameters:
delta_hue- Difference in Hue. Type: A real number in the range [0, 360].
delta_saturation- Difference in Saturation. Type: A real number in the range [0, 1].
delta_value- Difference in Value. Type: A real number in the range [0, 1].
Description
DeltaHSV is a ColorDifference object, used as a
parameter when selecting pixels in Images. It specifies the
difference between two colors by comparing their HSV representations.
The difference between two colors is less than
DeltaHSV if the absolute value of the
differences of their hues, saturations, and values are less than
delta_hue, delta_saturation,
and delta_value, respectively.
delta_hue and
delta_saturation are dimensionless floating
point numbers between 0 and 1, since hue and saturatation must be
between 0 and 1. A color value is given by an
angle, so delta_value is in degrees. The
absolute difference between two angles is always taken to be the
shorter distance around the unit circle.
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| DeltaGray (DeltaGray) |  |
DeltaRGB (DeltaRGB) |