To achieve both a high ratio of signal to noise (S/N) of an output video signal and a wide dynamic range in a single-chip color television camera.

In an imaging apparatus using a solid imaging device wherein a plurality of different color filters are arranged, this image signal processor includes a separation means for separating a plurality of color signals outputted from the solid imaging device into an individual color signal, a white balance adjustment means for subjecting the plurality of separated color signals to white balance adjustment, a level detection means for detecting a saturation level from the plurality of color signals subjected to white balance adjustment, a correction signal generation means for generating a correction signal from color signals other than color signals from which the saturation level has been detected by the level detection means, and a first addition means for adding the correction signal generated by the correction signal generation means to the plurality of color signals subjected to white balance adjustment.

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