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
all 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)
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DeltaRGB (DeltaRGB) |