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Color definition is based on the HSV color model (Hue-Saturation-Value) where the HSV color selection
panel is organized using two stacked panels across the Hue spectrum:
A rough approximation for the desired HSV values can be achieved graphically by dragging the circled
corners of the pixel selection boxes. For example, if the channel is to be used to locate red blobs, then
dragging the selection corners to the red part of the spectrum will begin producing blue bounding boxes
around reddish colored blobs in the image. When the selection corner is released, to facilitate further
adjustment, the KIPR Link will shift the spectrum to have the current color spectrum selection in the
center (the Hue spectrum cycles back to 0 after 359, so the Hue range may be from higher to lower as
well as lower to higher). Every pixel whose value matches the values within the selection is a color
match. In the image above, note that there is a blue bounding box in the upper left quadrant of the
camera image identifying a red blob.
Hue=0 (rel)
Val=0
Saturation (↕) vs. Hue
(↔)
Value (↕) vs. Hue (↔)
←
Sa
tu
ra
X
o
n
→
←
Sa
tu
ra
X
o
n
→
←
V
alu
e→
Sat=0
Hue=359 (rel)
Sat=255
Val=255
←
V
al
u
e→
