Image gradation improvement apparatus with color space converter formed in hardware

摘要

The present invention relates to an image gradation enhancement device for dithering in the YUV region. The image gradation enhancement device includes: a video decoder configured to receive a compressed video stream, decode the input video stream, and output the decoded video stream as a YUV video signal; A YUV dithering unit for transmitting YUV image signals from the video decoder and dithering and outputting the transmitted YUV image signals; A color space converter configured to transmit the dithered YUV image signals from the YUV dithering unit, convert the transmitted YUV image signals into 24-bit RGB image signals, and output the converted 24-bit RGB image signals; And an image size adjusting unit which transmits 24-bit RGB image signals from the color space converter and adjusts and outputs the 24-bit RGB image signals to match the resolution of the display module.