APPARATUS, METHOD AND PROGRAM FOR PROCESSING IMAGE

摘要

PROBLEM TO BE SOLVED: To effectively utilize parallel processing performance of a processor and to prevent an adverse effect on processing of adjacent pixels, when a parallel processing instruction processes an image including fewer pixels than concurrently processable pixels.

SOLUTION: An SIMD parallel processor includes a conversion unit 105 for arranging a plurality of image data so that image data of respective components alternate for each N/M (where M is an integer) pixels, when the parallel processing instruction of the processor SIMD is to concurrently process the plurality of pixel data including the pixels less than the concurrently processable pixels N; a read control unit 106 for reading the plurality of pixel data which have been arranged and converted by 2N pixels with N pixels as a unit; and a write control unit 107 for extracting the pixel data of the N/M pixels to be processed from the pixel data of the 2N pixels read by executing a byte shuffle instruction of the SIMD processor and compensating the shift of the pixel data of the extracted N/M pixels.

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