IMAGE ENHANCEMENT METHOD, IMAGE ENHANCEMENT DEVICE AND DISPLAY DEVICE

摘要

The present disclosure provides an image enhancement method, an image enhancement device and a display device. The image enhancement method comprises that: an original image is transferred from a first color space to a second color space containing brightness information, and the brightness information of the original image is extracted; for the brightness information, an optimum transformation parameter value of the grey level transformation function for image enhancement is determined through an optimum search algorithm; a transformation curve of the grey level transformation function is constructed according to the optimum transformation parameter value, the brightness information is processed for enhancement according to the transformation curve, and the enhanced brightness information is obtained; the enhanced brightness information is transferred from the second color space to the first color space, and a final enhanced image is obtained.