to the above embodiment can still be achieved in the above embodiment each pixel of the imaging device 42 is covered with either a red green or blue color filter and the emphasized image data is generated based on the red green and blue data components however each pixel of the imaging device 42 can also be covered with another color filter and the emphasized image data can be generated based on the color data components corresponding to the color filter covering the pixel in the above embodiment the emphasized image data is generated based on red green and blue data components however the emphasized image data can also be generated based on other data components used to synthesize a color received at each pixel for example a luminance data component and a color difference data component for each pixel can be generated based on the red green and blue signal components for each pixel and the emphasized image data can be generated by carrying out the calculation of average values difference values and emphasized values on the luminance signal component and the color difference signal component in the above embodiment the red average value is calculated using only red data components of which the data level is within the range between hlr and llr and the green average value is calculated.