1. A method for outlier (OL) detection and not outlier (NOL) detection for colour mapping, wherein a neighborhood of a partially colour compensated test-image (ICTI) by comparing the initially corrected test-image (ICTI) with a reference image (RI) in a neighborhood comparator (NHC) is used for outlier (OL) detection and not outlier (NOL) detection of at least two images for colour mapping.