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This page illustrates AdoIC's interactive watershed segmentation that has been suggested by F. Meyer.
Interactive Meyer's Watershed
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| The axial MRI image of the brain (top left) was dilated or eroded (not shown). Their difference was scaled up from 50 to 255 and markers (gray level=0) were imposed interactively (top middle). Meyer's watershed found the outline of the lateral ventricle (top right). Markers at the lower center image were imposed to find the outline of the brain gray matter (lower left). |  |
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The corpus callosum (left) and the cerebellum (right) were some of distinctive features in the sagittal image of the brain. In this type of the brain image, the whole brain is not well outlined. Meyer's watershed does not detect the ideal contour of the brain mainly due to the strong gradient between the scalp and the skull. |