Image-sensing apparatus for compensating video signal of a plurality of channels

An image-sensing apparatus for compensating video signal of a plurality of channels comprising:

• an image-sensing device having a plurality of divided pixel areas to output a plurality of channels of video signal and optical black (OB) areas provided vertically and horizontally for each of the plurality of divided pixel areas, the optical black (OB) areas obtaining a reference signal for black level of an video signal, accompanied with each of the plurality of divided pixel areas to output an OB signal together with the video signal for each channel;
• a control means for controlling a signal level of a plurality of OB signals outputted in vertical direction for each channel to be a predetermined signal level;
• a detection means for detecting a first signal level of the OB signal outputted in vertical direction, and a second signal level as an average signal level of the OB signal outputted in horizontal direction, and for providing a detecting result to the control means;
• and
• a compensation means for compensating each channel of an output signal from the control means by a difference of the first signal level and the second signal level.

An image-sensing apparatus for compensating video signal of a plurality of channels comprising:

• an image-sensing device having a plurality of divided pixel areas to output a plurality of channels of video signal and optical black (OB) areas provided vertically and horizontally for each of the plurality of divided pixel areas, the optical black (OB) areas obtaining a reference signal for black level of an video signal, accompanied with each of the plurality of divided pixel areas to output an OB signal together with the video signal for each channels;
• a control means for controlling a signal level of a plurality of OB signals outputted in horizontal direction for each channel to be a predetermined signal level;
• a detection means for detecting a first signal level of the OB signal outputted in vertical direction, and a second signal level of the OB signal outputted in horizontal direction, and for providing a detecting result of the second signal level to the control means;
• and
• a compensation means for compensating each channel of an output signal from the control means by a difference of the first signal level and a predetermined signal level.