A data managing device according to the present invention processes the same object pixel before and after variable magnification processing, and collectively manages processing data before and after the variable magnification processing by making access to a memory once. In the vari
A circuit according to the present invention has an input image processing circuit 11 and an image output processing circuit 12 which are asynchronously operated and a shared memory 18. In addition, it has a memory access signal switching circuit 110. The input image processing circu
