From f0363816937de806e71df80c435f13e4cd52249d Mon Sep 17 00:00:00 2001 From: Nick White Date: Mon, 17 Aug 2020 17:17:51 +0100 Subject: Have preproc and preprocmulti commands do vertical wiping too --- cmd/preproc/main.go | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'cmd/preproc/main.go') diff --git a/cmd/preproc/main.go b/cmd/preproc/main.go index e967cd2..e613e50 100644 --- a/cmd/preproc/main.go +++ b/cmd/preproc/main.go @@ -38,6 +38,9 @@ func main() { nowipe := flag.Bool("nowipe", false, "Disable wiping completely.") wipewsize := flag.Int("ws", 5, "Window size for wiping algorithm.") thresh := flag.Float64("wt", 0.05, "Threshold for the wiping algorithm to determine the proportion of black pixels below which a window is determined to be the edge.") + vmin := flag.Int("vm", 30, "Minimum percentage of the image height for the content width calculation to be considered valid.") + vthresh := flag.Float64("vt", 0.005, "Threshold for the proportion of black pixels below which a vertical wipe window is determined to be the edge. Higher means more aggressive wiping.") + vwsize := flag.Int("vw", 120, "Window size for vertical mask finding algorithm. Should be set to approximately line height + largest expected gap.") flag.Parse() if flag.NArg() < 2 { flag.Usage() @@ -66,7 +69,7 @@ func main() { } log.Print("Binarising") - var clean, threshimg image.Image + var clean, threshimg, vclean image.Image threshimg = preproc.IntegralSauvola(gray, *ksize, *binwsize) if *btype == "zeroinv" { @@ -78,7 +81,8 @@ func main() { if !*nowipe { log.Print("Wiping sides") - clean = preproc.Wipe(threshimg.(*image.Gray), *wipewsize, *thresh, *min) + vclean = preproc.VWipe(threshimg.(*image.Gray), *vwsize, *vthresh, *vmin) + clean = preproc.Wipe(vclean.(*image.Gray), *wipewsize, *thresh, *min) } else { clean = threshimg } -- cgit v1.2.1-24-ge1ad