Blob Analyzer These properties are defined in Blob Analyzer Results . l Inertia Minimum l Inertial Maximum l Elongation l Position Angle Custom Sampling Step (1 - 100) The sampling step is the step used by the tool to sample the area of the input image that is bounded by the tool region of interest. The sampling step represents the height and width of a sampled pixel. Default Default is the best sampling step computed by the tool. This is based on the average size of a pixel in the image. This default sampling step is usually recom- mended. Default is automatically used by the tool if no other value is specified. Custom To select a custom sampling step, Enable must be checked.
l Increasing the sampling step value reduces the tool accuracy and l Reducing the sampling step value increases the tool accuracy and decreases the execution time. increases the execution time. Data Collection Selecting this property allows you to choose which results you want collected. You can select as many as you want from the following: These properties are defined in Blob Analyzer Results on page 417. l Perimeter Results l Grey-Level Results l Extrinsic Inertial Results l Chain Code Results l Intrinsic Box Results l Topological Results ACEUser's Guide, 3.6.x, 18316-000 Rev A Page 415