| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce band width and latency when data to be expanded is read from a memory irrespective of a size of a block line. <P>SOLUTION: An image compression apparatus 10 in an embodiment writes compressed image data in a memory 20. The image compression apparatus 10 includes a compression section 12, a written address determining section 14 and a memory control section 16. The compression section 12 divides original image data including a plurality of pixels into a plurality of block lines, divides each of the block lines into a plurality of sub-block lines, compresses the original image data for each sub-block line and generates a plurality of compressed sub-block lines. The written address determining section 14 determines a written address of the memory 20 for each compressed sub-block line on the basis of the number of sub-block lines, an original image data size of the original image data and an image compression rate. The memory control section 16 writes the plurality of compressed sub-block lines in the written addresses corresponding to the respective compressed sub-block lines. <P>COPYRIGHT: (C)2013,JPO&INPIT |
