1. A vehicle-mounted imaging device having a plurality of unit pixels arranged on a chip, comprising: a photoelectric conversion element for photoelectrically converting incident light for each of the unit pixels; a multilayer film filter placed above the photoelectric conversion element for selectively transmitting only part of wavelengths of the incident light to separate a color component; and an image processing section for performing image processing for color signals that have passed through the multilayer film filter and been photoelectrically converted, wherein the image processing section is configured to correct the color signals on a color matrix divided into a plurality of regions corresponding to the color signals, the correction being made for each of the regions.