Stripe Score Tool
The Stripe Score Tool works as a stripe filtering tool. It
uses scores and weights to select a specific stripe from a collection
of points.
Understanding "Scores" and "Weights" for Stripe Scoring tools
The
"weight" is
the level of importance a characteristic will have when finding stripe
end points. The "score" is the overall level of similarity
between the stripe points found by the tool, and the expected values
defined by the user in the tool's parameters page.
The
weight is always based on 100%. Consequently if one
characteristic is given a weight of 2 and another 3 the first
characteristic will be given a 40% importance level and the second, 60%.
Using the Stripe Score Tool
Drag a tool that defines a collection of points onto the "Points" section of the Stripe Score Tool's inputs page. (Most often this will be the Stripe tool,
for the stripe tool adds extra information concerning the relative
positions of points that other tools do not.) Use the dropdown
menu to select "points".
The parameters page sets the stripe points polarity, the weights, max/min values and expected values.
Polarity 1 and 2
sets which points will be considered for the first and second edge
(respectively) based on polarity. Polarity can be set to "Dark to
Light", "Light to Dark", or "Don't Care". If the polarity is set
to "Dark to Light", for example, then only points that fall on an edge
that is dark turning to light, according to the direction of the ROI box, will be considered.
WeightWidth sets the importance or "weight" of the width (distance) characteristic when finding edge points.
MinWidth sets
the minimum width of a potential stripe. In order for two points
to score their distance from one another must be greater than the
MinWidth.
MaxWidth sets the maximum
width of a potential stripe. In order for two points to score
their distance from one another must be less than the MaxWidth.
ExpectedWidth
is the value that will be used to score the width characteristic.
The closer the distance between two potential points is to
the ExpectedWidth the higher their score.
WeightIntensity sets the importance or "weight" of the intensity (contrast of the edge) characteristic when finding edge points.
Note: Since intensity is the contrast from dark to light it has a maximum range of 255.
MinIntensity sets
the minimum intensity of a potential edge. In order
a point to score its intensity must be greater than
the
MinIntensity.
MaxIntensity sets
the maximum intensity of a potential edge. In order a point
to score its intensity must be less than the
MaxIntensity.
ExpectedIntensity
is the value that will be used to score the intensity characteristic. The
closer the intensity a points has to the
ExpectedIntensity the higher its score.
WeightPosition
sets the importance or "weight" of the position (the points relative
location within the ROI used to define the points) characteristic when
finding edge points.
PositionAsPercent
when checked, defines the position of the points as a percentage within
the ROI. When unchecked the position will be defined in terms of
pixels.
MinPosition sets
the minimum position of a potential edge. In order for
a point to score its position must be greater than the
MinPosition.
MaxPosition sets
the maximum position of a potential edge. In order for
a point to score its position must be less than the
MaxPosition.
ExpectedPosition
is the value that will be used to score the position characteristic. The
closer the position a points has to the
ExpectedPosition the higher its score.
When
the tool is run the results are listed in the parameters page.
The score for Width, Intensity and Position are listed
individually, and the combined score is given in the Score box. The parameters page also lists the Distance, Intensity and Position of the highest scoring stripe.