### Blob Count Tool Parameters

##### Blob Selection

- Polarity: Determines whether to count objects that are either lighter or darker than the background.

- Ignore Blobs that Touch the ROI: When enabled, blobs that touch the edge of the ROI will not be detected.

- Min Blob Size: Objects smaller than the defined size (in pixels) will be ignored. (Range: 10 to 50,000)

- Max Blob Size: Objects larger than the defined size (in pixels) will be ignored. (Range: 10 to 2,147,483,647)

##### Threshold

- Threshold: The Count Tool’s Blob Count capability displays a histogram of the gray values within its region of interest. This provides a visual aide when setting the tool’s threshold value. The histogram shows where the majority of the dark pixels (to the left) and the light pixels (to the right) are on the gray scale. You can use the slider to adjust the threshold to a point between the two peaks. The portion of the histogram that is above the threshold is displayed in red; the portion that is below the threshold is displayed in blue.

Selecting Auto Threshold will instruct the software to compute the threshold automatically.

##### Tolerance

- Min/Max Count: Sets the tolerance on the minimum and maximum number of blobs allowable for the inspection to pass. (Range: 0 to 10,000)