1. Basic operations
   1. extracting contours in all images at one time
   2. extracting contours partly

Basic operations

In this section, we explain the basic operation with the sample data. By installing "Sample" in "Installed Components", you can find the sample data in the folder "sample_data" in the HawkC installed folder. For more information, see this.

extracting contours in all images at one time

1. Load images
   Choose the menu item "File - New Project -Image Stack". Select all volume image files in "sample_data" by pressing Ctrl + A. And press the button "Open".
   
   
   
   
   
2. Choose a image clearly showing the object
   After reading the images, you can see the first image in "2D XY-Plane viewer". By using the bottom sliding bar of  the window, you can choose a image clearly showing the object.
   
   
   
   
   
3. Select a contour-extraction algorithm
   By right-clicking on the image, you can see the context menu. In the menu "Segmentation - TH Contour extraction", you can select one contour-extraction algorithm "TH". Also you can select another algorithm.
   
   
   
   
   
4. Execute the batch process for contour-extraction
   Set up the parameter in TH dialog. For more information, read this. Choose the item "Bath Run". For more information, read this. Then you can execute the batch process. In this way, you can extract the contours in all images.
   
   
   
   
   
5. Confirm the result of the extraction
   With choosing the images, you can confirm the result in "2D XY-Plane viewer". Also you can confirm the result in "Contour viewer". To do this, you can select the menu item "Display - Contour viewer".
   
   
   

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extracting contours partly

1. Load images
   As Same as above, read images.
   
   
   
2. Choose a image clearly showing the object
   As Same as above, choose a image clearly showing the object.
   
   
   
3. Draw a initial curve
   By right-clicking on the image, you can select the menu item "Draw free hand". By dragging the mouse, draw a curve surrounding the object. We name this curve "Initial curve".
   
   
   
   
   
4. Choose a contour-extraction algorithm for the initial curve
   By right-clicking on the initial curve, you can see the context menu. Then you can choose the menu item "Segmentation - TH Contour extraction".
   
   
   
   
   
5. Execute the contour-extraction algorithm
   Set up the parameter in TH dialog. For more information, read this. Click the button "Execute" to extract the contours. In this way, you can extract the only contours in the selected initial curve. TH algorithm extracts contours in the selected initial curve. But the behavior of the contour-extractions for the initial curve are depend on the algorithm. For more information, read this.
   
   
   
   
   
6. Copy the initial contour
   Select the the contour-extraction curve by right-clicking the result of it. Then select the menu item "Copy Initial curves".
   
   
   
   
   By right-click the image, select the menu item "Paste curves - range...". In the Range-Select-Dialog, determine a slice range pasted with the initial curves. For more information, read this. In this case, designate from the first slice to the last one.
   
   
   
   
   
7. Confirm the generated parameter curves
   We name the copied initial curves "Parameter curve". The curves are displayed with the parameter icon  on them. These curves have the previously executed parameter, which holds the usage of the TH algorithm and the details of extraction.
   In the slice range, you can confirm the generated "Parameter curves".
   
   
   
   
   
8. By right-click the image, select the menu item "Segmentation - Quick Batch". In the Range-Select-Dialog, designate from the first slice to the last one and click the button "OK" to execute.
   
   
   
   
   
9. Confirm the result of the contour-extraction
   As same as above, display the result of the contour-extraction in "2D XY-Plane viewer" or "Contour viewer". You can confirm the only contour which is surrounded by the initial curve.
   
   
   （Comparison with no initial curves）
   
   
   As above, by using the parameter curves copied with the initial curves, you can execute partly contour-extraction.
   By right-click the image and selecting the menu item "Segmentation - Quick Execute", you can execute the contour-extraction only for the designated parameter curve.
   
   
   
   

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