| 摘要 |
PURPOSE:To obtain a correct circumference length in a short time in a local and parallel type picture processing system by identifying the number for counting by the pattern of a local area consisting of picture elements of 3X3 centering the picture element. CONSTITUTION:A picture signal is inputted, stored and in a circumference length extraction of this picture, the number to be counted is obtained corresponding to the pattern consisting of the picture elements of 3X3, the numbers are tabulated, thereby the circumference length is obtained. For instance, in the respective picture elements of the picture, line i=1-8, column j=1-8 and the picture element is considered to be (ij). On the picture element 24, the local area is constituted by nine picture elements of 13, 14, 15, 23, 24, 25, 33, 34, 35. The picture element included in the picture is represented by one and that which is not included is represented by zero and a pattern code of a binary is obtained by a logical filter. Making this pattern code an address, the number to be counted is obtained from a converting table. This number is obtained on all the pictures, tabulated and the circumference length is obtained. |
