PURPOSE: To attain the automatic recognition of a character with a proper level for an optical character reader by controlling a filter based on the contents of the decision area of a prescribed writing tool.
CONSTITUTION: A light source lamp 2 irradiates the light on an input form 7 which moves toward an arrow A at a fixed speed. A filter 4 contains a pencil filter 4a and a ball pen filter 4b and can move toward an arrow B. A position deciding circuit 10 feeds the image of a writing tool decision area 1' to a line buffer 8 in accordance with vertical and horizontal distances VC and VH on the form 7. An input part 20 feeds the image on the form 7 to the buffer 8. A writing tool deciding circuit 30 decides a pencil or a ball pen based on the contents of the area 1' among the data fed to the buffer 8. A writing tool changing a circuit 40 changes the constitution of an optical character reader to fit for the pencil or ball pen in accordance with the contents decided by the circuit 30.
Download Full PDF Version (Non-Commercial Use)