Edge picture calculating device
专利汇可以提供Edge picture calculating device专利检索，专利查询，专利分析的服务。并且PURPOSE: To simplify the edge picture calculation in case an asymmetrical operator is used by applying a gradual arithmetic process to calculation of the slope in each direction of the scanned picture element.
CONSTITUTION: A gradated picture that is stored in a video memory 1 and undergoes the edge picture calculation is scanned by a (3×3) local arithmetic mask of a local arithmetic part 2. Then the slope g
0 of the scanned picture element is calculated by means of an edge calculating operator shown in a table and stored in a register 4. While a gradual arithmetic part 3 uses the slope g
0 as the initial value to calculate the slope g
i (i=1,2,...7) of each direction expressed by a gradual equation. This calculated g
i is stored temporarily in the register 4. Then an integrated control part 7 which performs the overall data control selects the largest slope g
i out of the register 4 to obtain the edge intensity and direction of the corresponding picture element. These obtained edge intensity and direction are stored as necessary in video memories 5 and 6 respectively.
COPYRIGHT: (C)1987,JPO&Japio，下面是Edge picture calculating device专利的具体信息内容。
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