1. A text change frame detection apparatus that selects a plurality of video frames including text contents from given video frames, said apparatus comprising: a first frame removing unit removing redundant video frames from the given video frames; a second frame removing unit removing video frames that do not contain a text area from the given video frames; a third frame removing unit detecting and removing redundant video frames caused by image shifting from the given video frames; and an output unit outputting remaining video frames as candidate text change frames.