Detect Somas Panel (3D)

See Detecting somas (3D) for step-by-step instructions

Drag the slider or type a value into the box to set the soma-detector sensitivity.

Sensitivity refers to the soma detector's ability to discriminate between foreground and background (i.e., between bright pixels and dark pixels).

Increasing the sensitivity enables the detector to take into account areas with less contrast between foreground and background.
Decreasing the sensitivity results in the detector ignoring areas with less contrast between foreground and background.

Interactive search region: Defines the width of a cube used to constrain the search area for interactive detection. Somas larger than the maximum size are detected within the cube; areas of the somas outside of the cube are ignored.

Adjust the interactive search region value one of the following ways:
- Enter a value for Interactive search region
- Use the mouse: Hold down CTRL and scroll the mouse wheel to adjust the cursor size. The cursor width represents the width of the interactive search region.
Size constraint: Constrains the soma size relative to the length of the region where soma and dendrites join. After detection, you may notice that a detected soma appears to flow into the areas where the dendrites originate. To resolve this issue, increase the Size constraint value and detect the soma again.
If you want to associate somas with a specific color channel, select a single channel using either the Channel panel on the left side of the 3D environment window or the Image Adjustment tool (on the Image and Workspace ribbons) in the 2D window.

Neurolucida 360 software may render somas with very complex structures as series of contours rather than as volumes.