The present invention relates to a device for registering images. Said device comprises: a first camera unit (cl) for taking a first image (Pl) with a first image property; a second camera unit (c2) for taking a second image (P2) with a second image property different from the first one; means for processing at least one of the first image (Pl) and the second image (P2) so that the image property of the two images matches to each other; enhancing the first image and/or second image based on information of the second image and/or first image, respectively.