| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain an image display device capable of deciding the feature estimation of broadcasted contents with not only from an information transmitted from a broadcasting station but also from others and capable of deciding an image at every genre at a real time. <P>SOLUTION: The feature of contents is decided on the basis of a maximum gradation value or a value corresponding to the value, an intermediate gradation value or the value corresponding to the intermediate gradation value, a minimum gradation value or the value corresponding to the minimum gradation value and a mean gradation value or the value corresponding to the mean gradation value obtained from a histogram uniformly dividing the number of gradations in the brightness signal of an input video signal, and the gradations are corrected to an image signal. Consequently, a contrast can be adjusted in response to the characteristics of contents. The contrast can be improved without operating a contrast adjusting function. <P>COPYRIGHT: (C)2007,JPO&INPIT |
