Colour corrected photographic printing exposure control method - illuminating original evenly and splitting light into prim. colours for separate analysis

摘要

The original or negative, in illuminated with an average lighting intensity and the transmitted light scanned for each colour. The colour density distribution is measured and a meand photometric value computed. Any dominance of a particular colour is corrected. The correction factor is determined and applied to the dominant colour. The separate colours are scanned in a two-dimensional pattern and the integrated value used to determine the mean density. The separate colour scans are combined to determine the exposure intensity and colour correction. ADVANTAGE - Consistent quality.