摘要 |
An image processing apparatus includes a volatile main memory, a first non-volatile memory for storing a plurality of types of partial snap shot images, a second non-volatile memory from which information can be read faster than from the first non-volatile memory, for storing an entire snap shot image, and a processor. The processor reads a partial snap shot image corresponding to a state after change from the first non-volatile memory and updates a corresponding portion of the entire snap shot image in the second non-volatile memory.
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