The present invention aims at providing a method to produce modified images of a human face while removing all defects, such as such as pigmentation irregularities (e.g., moles, freckles), irritation, roughness, or wrinkles This is achieved thanks to a method to produce a full-color smoothed image comprising the steps of : - acquiring a first image in the visible spectrum of a scene, - acquiring a second image in the near infra-red spectrum of the same or similar scene, - extracting the intensity information from the first image, - decomposing the intensity information from the first image into a first detail layer and a first base layer, - decomposing the second image into a second detail layer and a second base layer, - combining at least all or part of the second detail layer with at least all or part of the first base layer to produce a combined intensity information, - combining the color information of the first image with the combined intensity information to produce the full-color smoothed image