| 摘要 |
In a method of segmenting an image represented by a digital signal representation into direct exposure area and diagnostically relevant area, the local centroids of the histogram of the image are calculated. A set of archetype histograms with associated threshold value is generated. An archetype histogram is selected on the basis of correspondence of location and strength of its local centroids with that of the calculated local centroids. The threshold value associated with the selected archetype histogram is applied to the image so as to form a bitmap image comprising a different label for pixels of direct exposure area and for pixels of diagnostically relevant area. <IMAGE> |
