| 摘要 |
FIELD: information technology. ^ SUBSTANCE: image (170) is sent to an image analyser (172) to determine image characteristics essential for calculating the tone scale map and backlight. Said image characteristics contain a histogram of maximum code values of the image for each colour plane and for each unit of the image (170). Data from said histogram are sent to a backlight calculator (177) to determine the suitable backlight illumination level. ^ EFFECT: compensation for low illumination of a light source. ^ 21 cl, 78 dwg |
