| 摘要 |
PROBLEM TO BE SOLVED: To perform format conversion of data and output the data to the outside while suppressing data traffic and memory capacity.SOLUTION: In an image display device 1, when a display control signal generation section 11 converts YCbCr data to target image data of an RGB format to be output to a display 20 by converting corresponding pieces of line data of planes, Cb and Cr planes of line data of the YCbCr data, which are planes with fewer lines, are lossless-compressed line by line by a static Huffman coding method in a compression processing section 12 and then retained in a storage section 13, and under the control of a control section 15, the Cb and Cr planes of line data from a system memory 30 and line data expanded in an expansion processing section 14 from the line data in the storage section 13 are alternately input into the display control signal generation section 11 in synchronism with a Y plane of line data from the system memory 30. |
