Skew detector for digital image processing system

摘要: Each line in a frame of video data is organized into continuous runs white pixels, and those having lengths below given threshold are transformed to black pixels. The then the start position longest pixel run noted for each horizontal line. Skew angle computed from offset distance between positions successive lines. mean set distances, being large enough minimize RMS standard deviation distances predetermined value. fall staircase pattern whenever there non-zero skew angle.