diff options
Diffstat (limited to 'preproc/cmd/preprocmulti')
| -rw-r--r-- | preproc/cmd/preprocmulti/main.go | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/preproc/cmd/preprocmulti/main.go b/preproc/cmd/preprocmulti/main.go index 01afb9b..eea7ab4 100644 --- a/preproc/cmd/preprocmulti/main.go +++ b/preproc/cmd/preprocmulti/main.go @@ -23,16 +23,19 @@ func autowsize(bounds image.Rectangle) int { } func main() { + ksizes := []float64{0.2, 0.3, 0.4, 0.5, 0.6} + flag.Usage = func() { - fmt.Fprintf(os.Stderr, "Usage: preproc [-bt bintype] [-bw winsize] [-t thresh] [-ws wipesize] inimg outbase\n") + fmt.Fprintf(os.Stderr, "Usage: preproc [-bt bintype] [-bw winsize] [-wt wipethresh] [-ws wipesize] inimg outbase\n") fmt.Fprintf(os.Stderr, "Binarize and preprocess an image, with multiple binarisation levels,\n") - fmt.Fprintf(os.Stderr, "saving images to outbase_knum.png.\n") + fmt.Fprintf(os.Stderr, "saving images to outbase_bin{k}.png.\n") + fmt.Fprintf(os.Stderr, "Binarises with these levels for k: %v.\n", ksizes) flag.PrintDefaults() } binwsize := flag.Int("bw", 0, "Window size for sauvola binarization algorithm. Set automatically based on resolution if not set.") btype := flag.String("bt", "binary", "Type of binarization threshold. binary or zeroinv are currently implemented.") wipewsize := flag.Int("ws", 5, "Window size for wiping algorithm.") - thresh := flag.Float64("t", 0.05, "Threshold for the proportion of black pixels below which a window is determined to be the edge.") + 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.") flag.Parse() if flag.NArg() < 2 { flag.Usage() @@ -61,8 +64,6 @@ func main() { *binwsize++ } - ksizes := []float64{0.2, 0.3, 0.4, 0.5, 0.6} - var threshimg image.Image log.Print("Precalculating integral images") integrals := integralimg.ToAllIntegralImg(gray) @@ -81,7 +82,7 @@ func main() { log.Print("Wiping sides") clean := preproc.Wipe(threshimg.(*image.Gray), *wipewsize, *thresh) - savefn := fmt.Sprintf("%s_%0.1f.png", flag.Arg(1), k) + savefn := fmt.Sprintf("%s_bin%0.1f.png", flag.Arg(1), k) log.Printf("Saving %s\n", savefn) f, err = os.Create(savefn) if err != nil { |