Method and system of enhancing a backlight-scaled image

A system of enhancing a backlight-scaled image, comprising:

• a visibility prediction unit configured to determine a minimum perceptible luminance threshold of cone response with dim backlight;
• a luminance extraction unit configured to extract a luminance layer associated with an image;
• a decomposition unit configured to decompose the luminance layer into an HVS response layer and a background luminance layer for each pixel of the luminance layer;
• a luminance boosting unit configured to boost and compress luminance of dark pixels of the background luminance layer to a perceptible range above the minimum perceptible luminance threshold, thereby resulting in an enhanced background luminance layer;
• and
• a composition unit configured to generate an enhanced luminance layer through composition using the HVS response layer and the enhanced background luminance layer as inputs.