1. A method of detecting a face in a colour digital image, said method comprising the steps of: 1. segmenting said image into a plurality of regions each having a substantially homogenous colour; 2. testing the colour of each said region created in step 1 to determine those regions having predominantly skin colour; and 3. subjecting only the regions determined in step 2 to further facial feature analysis whereby said regions created in step 1 not having a predominantly skin colour are not subjected to said further feature analysis.