Blob Analyzer Blob Selection and Display Related Topics Blob Analyzer Configuring Blob Analyzer Properties - Advanced Blob Analyzer Results Configuring Blob Analyzer Properties - Advanced The Advanced Properties section of the Blob Analyzer tool interface provides access to advanced Blob Analyzer parameters and properties. Tool Sampling Parameters Sampling refers to the procedure used by the tool to gather values within the portion of the input image that is bounded by the tool region of interest. Two sampling parameters, the Cus- tom Sampling Step and Bilinear Interpolation, are used to balance the tradeoff between speed and accuracy.
Bilinear Interpolation (True/False) Bilinear Interpolation specifies if bilinear interpolation is used to sample the image before it is analyzed. Bilinear interpolation is crucial for obtaining accurate Blob Analyzer results. To ensure sub- pixel accuracy in blob results, Bilinear Interpolation should always be set to true (enabled). If the Blob Analyzer is used in a frame-based mode, the tool region of interest, and the blobs found within it, are rarely aligned with the pixel grid. This results in jagged edges on blob bor- ders.
Therefore, interpolated pixel values provide a more true-to-life representation of blob ACEUser's Guide, 3.6.x, 18316-000 Rev A Page 411 Object Definition Allow Clipped Blobs Enables or disables the inclusion of clipped blobs in the result set. Maximum Blob Count Sets the maximum number of blobs that the tool will return. Results Display Mode Defines how the results are displayed in the Dis- play window. The options are: Markers l Blob Image l Both l