Data Representation

Building the Cantata Workspace

1. Read the image gull.viff and display it using the operators User defined and Display Image. All the images used in the DIP course can be found in the directory "$DIP/data/". In the User defined operator, you can enter $DIP/data/ in the input file string field and click in the input file button. This will open the selected directory and allow you to use the file browser option. You can then select the image gull.viff by clicking on it.
2. Get the header file information with the operator Data Object Info. This operator extracts the image header of the input image and creates an ASCII file with this information. To visualize ASCII text, it is necessary to use a special Text File Visualization operator called File Viewer.
3. Repeat for the following images:
   • $DIP/data/numbers.viff
   • $DIP/data/log-enhance-problem.viff
   • $DIP/data/gull-color.viff
4. For the 1D data $DIP/data/heart-beat-signal.viff use the operator 2D Plot to visualize it.
5. For the volume data $DIP/data/bluntfin.viff use the operator Animate to visualize it.

Exercises

• Extract and interpret the header information of the following images: ruler.viff and spine.viff.