Patent ID: 7864223

Claim:
An imaging apparatus comprising: a video signal processing circuit converting a color image represented using a plurality of primary color signals into a monocolor image, said video signal processing circuit including a chroma adjustment unit adjusting the chroma of the plurality of input primary color signals; a gain correction unit provided for each of said primary color signals, correcting gain on the primary color signals whose chroma is adjusted in said chroma adjustment unit; and a control unit instructing said chroma adjustment unit to adjust the chroma, and instructing each of said gain correction units to correct the gain, wherein the chroma adjustment unit is configured using a luminance signal generating function of a luminance adjustment circuit included in said imaging apparatus, and wherein the chroma adjustment unit includes: a luminance generation circuit generating luminance signals from the plurality of input primary color signals; a color difference generation circuit generating a color difference signal corresponding to each of the primary color signals by subtracting the luminance signal generated in said luminance generation circuit from each of the primary color signals; a color difference gain adjustment circuit adjusting the gain on each of the primary color signals generated in said color difference generation circuit in accordance with the instruction supplied from said control unit; and an output circuit adding said luminance signal to each of the color difference signals whose gain is adjusted in said color difference gain adjustment circuit and outputting a resultant signal.