| 摘要 |
PROBLEM TO BE SOLVED: To artificially express gradation of input data, and obtain high brightness by generating display data on which the bit number is fewer than the input data by performing error diffusing processing on the input data. SOLUTION: An input image signal is converted into a digital image data by an A/D converter 1. The digital image data is 8-bit data capable of expressing 256 gradations. This 8-bit digital image data is sent to an error diffusing processing part 2. This error diffusing processing part 2 obtains 3-bit display data which is output data capable of artificially expressing gradation of input data by an error diffusing method and on which the bit number is fewer than 8-bit input data. In this way, since the 3-bit display data can be obtained from the 8-bit data by error diffusing processing, 256 gradations are artificially expressed by this 3 bit display data. Therefore, gradation of input data can be artificially expressed, and high brightness can also be obtained. |
