| 摘要 |
PURPOSE:To make a correct color gradation display of external video data by performing gamma correction processing for pieces of video information for the respective colors by a gamma correcting means to the same gamma correction quantity with internally handled video information. CONSTITUTION:A 2nd decoder 4 generates video data of R(red), G(green), and B(blue) having each pixel composed of, for example, 8 bits from luminance data and two color difference data and supplies the data to a frame memory (storage means) 5. The video data for the respective colors which are read out of the frame memory 5 are processed by gamma correction through gamma correcting circuits 6R, 6G, and 6B for the respective colors to the gamma correction quantity matching a monitor device 11 provided in this work station, and the color gradations are adjusted to the color gradations of the video data handled in the work station. Therefore, an image regarding the external video signal to be displayed on the monitor device 11 is displayed with the correct color gradations matching the color gradations of the work station. |
