The main commands for image segmentation and extracting
feature information from image data are given below.
Feature extraction commands are
grouped according to the data type are listed below:
| Command | Function: Image Segmentation |
|---|
| vpix th= | Explicit image thresholding (2D or 3D) |
| vthresh | Automated image thresholding using Otsu's algortihm (2D) |
| v2connect | 2D connected component analysis |
| v3connect | 3D connected component analysis |
| vwshed | Watershed segmenation algorithm (2D or 3D) |
| vgcut | Graph-cut image segmenation (2D or 3D) |
| Command | Function: 2D image feature extraction |
|---|
| vconnect | - compute connected segment descriptors |
| vtrace | - trace the boundaries of image segments |
| Command | Function: 3D image feature extraction |
|---|
| v3connect | - 3D connected component analysis |
| v3sc | 3D component selection (2D or 3D) |
| v3ps | Compute statistics of a 3D VisionX image file |
| vdim -c | Convert to image sequence format
for image sequence analysis commands |
| Command | Function: Image sequence feature extraction |
|---|
| vtrack | Compute the trajectory of image features in an image set |
| v3vec | Converts a 3D binary line image to 3D vectors |
| vdim -f | Convert to 3D image format
for 3D image analysis commands |