Patent ID: 8131968

Claim:
An image processing apparatus comprising: a storing section that stores data; a first processing section that requests write access to the storing section; a second processing section that requests read access to the storing section; and an access control section that controls the write access from the first processing section to the storing section and the read access from the second processing section to the storing section individually, wherein: at a time of the read access from the second processing section to the storing section, the access control section refers the second processing section to the storing section, the access control section refers to a judgment result obtained by judging whether or not write data satisfies a predetermined condition at a time of the write access from the first processing section to the storing section and access position information at the time of the writing access, and, when the judgment result corresponding to an access position at the time of the read access indicates that the write data satisfies the predetermined condition at the time of the write access, returns predetermined data that is determined from the predetermined condition, to the second processing section, without reading data from the storing section, and at the time of the write access from the first processing section to the storing section, the access control section judges whether or not the write data satisfies the predetermined condition, manages the obtained judgment result and the access position information at the time of the write access, and performs no writing of the write data satisfying the predetermined condition to the storing section.