Removal of interferential curve from text image

A general algorithm for eliminating interferential curve in text image was proposed, which converted images into basic graph and super graph firstly, and then treated interferential curve as principal curve to detect principal curve in image. In the detection, improved shortest path algorithm and orientation offset algorithm were used, and finally, the detected curve was removed from original image. Experiments conducted with a variety of text images showed that this algorithm is effective for removing interferential curve in text image.