Patent ID: 7440149

Claim:
A method for optically scanning images, the method comprising the following steps: a) optically Illuminating or transilluminating an original image in order to generate optical signals which contain the image information, b) imaging the optical signals onto an optical sensor which has a number of pixels which are subdivided in groups into different segments, c) converting the optical signals into electrical pixel signals which correspond to the image signals, d) reading out the electrical pixel signals from different segments in each case via an independent readout channel, and e) correcting values of the electrical pixel signals of pixels adjacent to a segment border by assigning weighting factors to respective adjacent pixels arranged in a direction perpendicular to the segment border depending on the distance to the pixels to be corrected and calculating a value for the pixel to be adjusted based upon the weighted values in order to avoid visible image disturbances caused by differing transfer characteristic curves of respective segments.