FIELD: physics.
SUBSTANCE: disclosed is a method of selecting the display source light illumination level involving the following sequence of actions. Calculating a luminance channel from three-colour-channel image data for an input image. Calculating a compound colour channel from the three-colour-channel image data. Generating a two-dimensional histogram from the luminance channel and the compound colour channel. Converting the two-dimensional histogram to a one-dimensional histogram. Determining a performance factor using the one-dimensional histogram. Selecting the display source light illumination level based on the performance factor.
EFFECT: higher source light intensity or higher image quality at a fixed source light illumination level, improved dynamic range of specific image frequency bands, gray gradations and other parts of the image.
20 cl, 119 dwg
