VERFAHREN ZUR ANALYSE, OB EIN PHOTOGRAPHISCHES BILD IN UNGEWÖHNLICHER BELEUCHTUNGSSITUATION AUFGENOMMEN WURDE UND GERÄT ZUR PHOTOGRAPHISCHEN BILDVERARBEITUNG

摘要

Image pixels are developed corresponding to coordinate system representing relationship of RGB average data on each pixel. For each pixel groups, average distance of the pixels relative to reference line representing characteristics of image obtained using standard light is calculated. The image is determined to be obtained using tungsten light, if the image difference sum for the RGB is greater than preset value. An independent claim is also included for photographic image processing apparatus.