| 摘要 |
PURPOSE:To share the function of an optical system without depending on the optical system by storing a frequency component calculated by a frequency analysis part in frequency memory, shifting the frequency of such data by a prescribed value, and applying inverse transformation to it. CONSTITUTION:The data D from an input system is inputted to CCD memory 5 or 6, and it is transformed to frequency space by the frequency analysis part 7. Such data is stored in memory 8, and after that, the inverse transformation to image space is applied to it at a transformation part 9, and the frequency component higher than the 1/2 of the sampling period of the data D is eliminated as a noise. Also, the data in the memory 5, 6 are magnified to magnification M, and the frequency component of each frequency (f) is shifted to a frequency of f/M. A magnified image can be obtained by applying the inverse transformation to the component, and it is fed back to the memory 5 or 6, and is transferred to a bus 3. Thereby, it is possible to sufficiently secure the timing of the feedback of an image since two memory 5, 6 are provided and to store the image that is a processed result as keeping an original image and to share the function of the optical system without depending on the optical system. |
