| 摘要 |
PURPOSE:To vary the size and shape of a photographed image easily with accurate magnifications, by varying the frequencies of a horizontal and a vertical driving clock, and varying a scanning range. CONSTITUTION:A horizontal clock frequency control signal H from a horizontal shape control part 4 which controls the size of a horizontal image is supplied to a horizontal clock oscillation part 5, whose frequency is multiplied by the reciprocal number 1/a of the magnification (a) of the image by a horizontal image magnification signalI. Then, a horizontal driving register 1 which specifies the position of a scanning picture element varies in output with a horizontal driving clock A and shifts in scanning position successively by a position signal C, so the 1/a output E of the picture element is sent out when the frequency of the clock A is reduced to 1/a. In the vertical direction, the frequency of the clock B is varied to vary the vertical size. |
