1. An apparatus outputting a wide gamut image, the apparatus comprising: a feature extraction module to extract one or more feature differences between a standard gamut and a wide gamut of an image, the extracted feature differences being feature differences which result in a discrepancy larger than a predetermined threshold; a color range setting module to set a hue range according to the extracted feature differences and one or more experimentally determined parameters; and a conversion module to convert the image, from the wide gamut to the standard gamut, according to the extracted feature differences, the experimentally determined parameters, and the set hue range, wherein the experimentally determined parameters are determined by an experiment conducted by inputting a wide gamut image, generated by a wide gamut imaging device, to a monitor and the wide gamut image output by the monitor is viewed by a plurality of viewers, wherein predetermined parameters are applied to the wide gamut image and the results of the application are printed, the predetermined parameters being based on the feature differences which result in the discrepancy larger than the predetermined threshold, wherein the plurality of viewers choose one or more printed images that are similar to the wide gamut image output by the monitor from among the printed images and one or more parameters corresponding to the chosen one or more images is determined to be the experimentally determined parameters based on the one or more images chosen by the plurality of viewers.