TECHNIQUES FOR DYNAMICALLY REGULATING DISPLAY IMAGES FOR AMBIENT VIEWING CONDITIONS

摘要

Techniques pertaining to dynamically regulating brightness of backlighting in display devices are disclosed. According to one aspect of the present invention, the brightness dynamic range of a display device is adjusted according to the current ambient viewing conditions. In order words, the original brightness dynamic range of the display image is mapped to the brightness dynamic range suitable for human eyes under the current ambient viewing conditions. The brightness of the display image is corrected according to a histogram to enhance the contrast and details of the display image, thereby a high quality displayed image can be presented under the current ambient viewing conditions.

主权项

1. A method for dynamically regulating a display image for human eyes to view on a display device under current ambient viewing conditions, the method comprising:
determining an original dynamic range of the display image; determining a dynamic range suitable for human eyes under the current ambient viewing conditions according to the original dynamic range; regulating an original brightness value of each pixel of the display image to a regulated brightness value suitable for the human eyes according to the original dynamic range of the display image and the dynamic range suitable for human eyes under the current ambient viewing conditions; and correcting the regulated brightness value of each pixel of the display image to a corrected brightness value according to a histogram determined from the regulated brightness value of each pixel of the display image.