This module enables to make a semi-automatic segmentation of a volume. You define a band of gray levels by selecting a low level threshold and high level threshold. Corresponding regions are highlighted and added to current region when you click on them. You can also export this region as a mask.
At the top you see the histogram of your volume. Vous pouvez visualiser l'histogramme de votre volume sur la première partie haute de l'onglet. y-coordinate is the frequency of a gray level and x-coordinate is its value.
Table 9.11. Connectivity threshold panel
| Field name | Description |
|---|---|
|
Bins |
Number of splitting of gray levels scale. |
|
Ingnore under low |
This option enables to update the frequencies of gray levels in the histogram according to the values of high level and low level. |
|
Histo Image / Histo ROI |
|
|
Save Histos |
Saving all histograms (volume and ROIs histograms) in a text file. A file dialog opens and enables to choose the name of the file. The format of this file is .anahis. The extension is optional and the file is readable with any text editor. See appendix about .anahis format. |
|
Activate threshold preview |
|
|
Low level |
Move the cursor to set the low threshold of gray levels. |
|
High level |
Move the cursor to set the high threshold of gray levels. |
|
Dimension |
|
|
Mix method |
|
|
Mixing factor |
Mixing factor used for the linear fusion. |