Line Finder Line Finder Results ACEUser's Guide, 3.6.x, 18316-000 Rev A Page 556 Object Definition End Position X X coordinate of the point at the end of the line seg- ment. End Position Y Y coordinate of the point at the end of the line seg- ment. Angle Angle of the found line. A line is defined as the line passing through Vector Point X and Vector Point Y at the given Angle. Average Contrast Average grey-level contrast between light and dark pixels on either side of the found line. Fit Quality Fit Quality is the normalized, average error between the calculated line and the actual edges matched to the found line. Fit Quality ranges from 0 to 100, with 100 being the best quality.
A value of 100 means that the average error is 0. Con- versely, a value of 0 means that the average matched error is equal to the Conformity Tol- erance. Match Quality Match Quality corresponds to the percentage of edges actually matched to the found line. Match Quality ranges from 0 to 100, with 100 being the best quality. A value of 100 means that edges were matched to 100% of the points along the found line. Similarly, a value of 20 means edges were matched to 20% of the points along the found line.