Blob Analyzer l All pixels with values to the right of the threshold are background. l Blobs include all pixels with a value equal to the threshold value. Light Segmentation The Light Segmentation mode is used for extract light blobs on a dark back- ground. This is the inverse function of the Dark Segmentation mode. l All pixels values to the right of the threshold function are potential blob regions. l All pixels with values to left of the threshold function are background. l Blobs include all pixels with a value equal to the threshold value. Inside Segmentation The Inside Segmentation mode applies a dual-threshold function.
This mode is used to extract grey (neither dark nor light) blobs from a background con- taining dark and light areas. Examples: l The region of interest contains a grey blob on a light object or part, with a dark image background. l The region of interest contains a grey blob on a dark object or part, with a light image background. NOTE : Inside Segmentation should always be configured using Soft Threshold Functions . In most cases the Dynamic Inside segmentation mode will provide better flexibility and better results than the Inside Seg- mentation mode. Outside Segmentation The Outside Segmentation mode applies a dual-threshold function and is the inverse of the Inside mode.
This mode is used for extracting dark and light blobs from a grey background. Cases for using outside segmentation are not frequent because it is best to ana- lyze dark and light blobs within an image by creating two Blob Analyzer tools: one for dark blobs and one for light blobs. Dynamic Dark The Dynamic Dark mode sets a percentage of the pixel distribution that is valid for the detection of dark blobs. ACEUser's Guide, 3.6.x, 18316-000 Rev A Page 406