Tsutomu Takayama

Linear image sensor

Image processing for correcting defects of read image

Image reading apparatus and illumination apparatus

GAMMA CORRECTION DEVICE

White balance control for still image sensing apparatus

Color image sensing device

Color image pickup device in which the level of a sequential color-difference signal is controlled on the basis of the level of the luminance signal

High speed color balance adjusting device capable of compensating for a flickering light source

Solid state image pick-up device having a shutter which is capable of still and motion picture photography

Electronic still video camera wherein a pre-exposure period is utilized to generate control signals of integrated values of the photoelectrically converted image signal to control both exposure and color balance