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A map is a file which contains integer pixel values called object labels. The labels typically identify different objects in the image volume. Such maps are often the product of segmentation procedures.
Maps file available in different image format can be loaded in PMOD. In the VOI page in the View tool map files can be converted in contour VOIs. The functionality is located in the Auto Iso-contour selection list.
When Outline Maps option is selected in the list a dialog window appears which allows specifying the bin size for the label histogram.
A Step value of 1 should normally work fine. The file is scanned and for each label found a list entry is created in the VOIs list. Now the names can be edited and the VOIs saved for further analysis.