Image processing apparatus and image processing method

An image processing method of an image processing apparatus that operates in a plurality of modes including a first mode for performing high image quality processing of image data and a second mode for performing high-speed processing of image data, and includes a memory configured to store image data, a first memory access controller configured to read out the image data from the memory, an image processing unit configured to perform image processing on the image data read out by the first memory access controller, a second memory access controller configured to write, into the memory, the image data that has undergone the image processing by the image processing unit, and a common bus configured to connect the first memory access controller, the image processing unit, and the second memory access controller to transfer the image data, the method comprising:

• performing, in accordance with the mode to be operated, settings of each of an operation to output the image data from the first memory access controller to the common bus, an operation to input the image data from the common bus to the image processing unit, an operation of the image processing unit, an operation to output the image data from the image processing unit to the common bus, and an operation to output the image data from the common bus to the second memory access controller.