Operation: trace lines
The operation traces lines in a possibly noisy image, starting from a
point on each line. A line can have gaps. Only lines with a given
maximum angle against the horizontal are taken into account. Only
lines with minimal length and a minimum distance from the
image borders are taken into account.
Options

min stick length:
To determine the next direction and to evaluate the stop condition a
line segment of this length will be used. The tracing stops when the
intensity under the segment of
this length in the best next direction is smaller than in the direction perpendicular to the next best direction.
max angle: The next direction is searched within the angles -max angle to +max angle around the x-axis..
distance border: The minimum distance from the border.
min segment length: The minimum length of the line segments taken into account.
Parameter
inputImage (ImagePlus) : A 2-dimensional input image.
startPoints (ResultsTable): A results table containing the start points for the tracing in the columns X and Y.
Results
result (ImagePlus): An image showing the lines found.
resultLines (Vector of Line2D ): A list of the lines found.