| 摘要 |
PURPOSE:To simplify the processing contents and to execute the high speed of a convergence by considering the picture element concentration of a circumference in a special vicinity unit and repeating the operation to make the minimum picture element concentration into the central picture element concentration and the operation to add the processing result by the operation to an original inverse image. CONSTITUTION:In the concentration weighting distance conversion, when a background picture element is, for example, 0, the picture element concentration of the circumference is considered in the special vicinity unit, the operation to make the minimum concentration into the central picture element concentration and the operation to add the processing result by the operation and to the original picture are repeated, and by dividing the evaluation of the element of the distance and the evaluation of the element of the concentration, the processing contents are simplified and the high speed of the convergence is executed. In the distance conversion, the picture element to give the distance once is considered to be the background picture element, the distance value equal to the number of the times of scan only to the boundary picture element by one scan is given and thus, the simplification and high speed of the processing are executed. Thus, the hardware is facilitated and the processing time can be shortened. |
