| 摘要 |
PURPOSE:To realize a local vicinity image arithmetic with a few hardware capacity and at a high speed by providing a shift operation control means which executes a shift operation intermittently to a clock signal, and an output selection control means which switches the selection control signals of a selector that selects the output of a shift register of variable number of steps at every clock. CONSTITUTION:An input image 1 on which a raster scanning is performed is inputted to the shift register of variable number of steps one picture element by one picture element at every three machine cycles, and VSRs 10, 20 and 30 input a picture data once at every three machine cycles, and perform shifts. At such a time, nine local vicinity image data required for the calculation of one picture element data in an output image 4 are held within the VSRs 10, 20 and 30 for three machine cycles, and are inputted to arithmetic circuits (PE) 15, 25 and 35, and a product between the picture element data and load coefficients supplied from corresponding coefficient memories (M) 14, 24 and 34 is calculated, and an arithmetic result is consolidated at an ALU 40. |
