| 摘要 |
A white balance adjustment apparatus for adjusting red, green and blue video signals of an aiming subject has amplifiers (5a, 5b, 5c) for amplifying the R, G, B video signals, respectively, a brightness detector (7) for detecting the brightness of the subject, and a mode selector (8) for selecting either an outdoor lighting mode or an indoor lighting mode in accordance with the brightness detected by the brightness detector. A white detector (2) is provided for receiving the R, G, B video signals for each pixel and detecting a pixel with R, G, B video signals that falls in a narrow white range when the outdoor lighting mode is selected, and in a wide white range when the indoor lighting mode is selected. An integrator (3) integrates the number of detected pixels in the white range. A white balance gain control (4) controls the gain of the amplifiers based on the integrated result of the integrator. <IMAGE> |
