pixel_filter_by_matrix  498 lib/gocr/pixel.c     int pix2 = pixel_filter_by_matrix(p, x, y);
pixel_filter_by_matrix  509 lib/gocr/pixel.c     return pixel_filter_by_matrix(p, x, y);
pixel_filter_by_matrix  513 lib/gocr/pixel.c     int pix2 = pixel_filter_by_matrix(p, x, y);