Surface3D's Segmentation widget provides access to the labels that are used to identify and segment objects (bones, implants, etc.) in the image data. The recommended approach for segmenting image data is described in the How To: Segment Image Data and Create Surface Models tutorial.

Surface3D's Segmentation widget displays the labels in a table along with their name, color, and upper and lower threshold values.

• To create a label, use the command Segmentation → Add Object Label.
• To remove a label, use the command Segmentation → Remove Object Label.
• To change the name of a label, double-click on the name and type in a new one.
• To change its color, double-click on the color cell in the table and select a new color from the dialog.
• The upper and lower threshold values can be changed by dragging the vertical lines in the //Histogram of Image// widget, or by double-clicking on the cells in the table and typing in new values.

When you are finished with the first object, selecting the next object will delete the existing segmentation label.