diff options
| author | Nick White <git@njw.name> | 2019-10-08 12:52:33 +0100 | 
|---|---|---|
| committer | Nick White <git@njw.name> | 2019-10-08 12:52:33 +0100 | 
| commit | 7482157a03ed3e9d7f45e54a126b391001f34948 (patch) | |
| tree | 52f87b9ca159fe4c04a0349de95ea9de82692b3c /preproc/cmd/preprocmulti | |
| parent | d43c11bf653bfe3c1ad1ed277f1ec08bf155cf98 (diff) | |
Separate out bookpipeline from catch-all go.git repo, and rename to rescribe.xyz/bookpipeline
The dependencies from the go.git repo will follow in due course.
Diffstat (limited to 'preproc/cmd/preprocmulti')
| -rw-r--r-- | preproc/cmd/preprocmulti/main.go | 101 | 
1 files changed, 0 insertions, 101 deletions
| diff --git a/preproc/cmd/preprocmulti/main.go b/preproc/cmd/preprocmulti/main.go deleted file mode 100644 index c6c9fe4..0000000 --- a/preproc/cmd/preprocmulti/main.go +++ /dev/null @@ -1,101 +0,0 @@ -package main - -// TODO: come up with a way to set a good ksize automatically - -import ( -	"flag" -	"fmt" -	"image" -	"image/draw" -	_ "image/jpeg" -	"image/png" -	"log" -	"os" - -	"rescribe.xyz/go.git/integralimg" -	"rescribe.xyz/go.git/preproc" -) - -// TODO: do more testing to see how good this assumption is -func autowsize(bounds image.Rectangle) int { -	return bounds.Dx() / 60 -} - -func main() { -	ksizes := []float64{0.1, 0.2, 0.4, 0.5} - -	flag.Usage = func() { -		fmt.Fprintf(os.Stderr, "Usage: preprocmulti [-bt bintype] [-bw winsize] [-m minperc] [-nowipe] [-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_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.") -	min := flag.Int("m", 30, "Minimum percentage of the image width for the content width calculation to be considered valid.") -	nowipe := flag.Bool("nowipe", false, "Disable wiping completely.") -	wipewsize := flag.Int("ws", 5, "Window size for wiping algorithm.") -	flag.Parse() -	if flag.NArg() < 2 { -		flag.Usage() -		os.Exit(1) -	} - -	log.Printf("Opening %s\n", flag.Arg(0)) -	f, err := os.Open(flag.Arg(0)) -	defer f.Close() -	if err != nil { -		log.Fatalf("Could not open file %s: %v\n", flag.Arg(0), err) -	} -	img, _, err := image.Decode(f) -	if err != nil { -		log.Fatalf("Could not decode image: %v\n", err) -	} -	b := img.Bounds() -	gray := image.NewGray(image.Rect(0, 0, b.Dx(), b.Dy())) -	draw.Draw(gray, b, img, b.Min, draw.Src) - -	if *binwsize == 0 { -		*binwsize = autowsize(b) -	} - -	if *binwsize%2 == 0 { -		*binwsize++ -	} - -	var clean, threshimg image.Image -	log.Print("Precalculating integral images") -	integrals := integralimg.ToAllIntegralImg(gray) - -	for _, k := range ksizes { -		log.Print("Binarising") -		threshimg = preproc.PreCalcedSauvola(integrals, gray, k, *binwsize) - -		if *btype == "zeroinv" { -			threshimg, err = preproc.BinToZeroInv(threshimg.(*image.Gray), img.(*image.RGBA)) -			if err != nil { -				log.Fatal(err) -			} -		} - -		if !*nowipe { -			log.Print("Wiping sides") -			clean = preproc.Wipe(threshimg.(*image.Gray), *wipewsize, k*0.02, *min) -		} else { -			clean = threshimg -		} - -		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 { -			log.Fatalf("Could not create file %s: %v\n", savefn, err) -		} -		defer f.Close() -		err = png.Encode(f, clean) -		if err != nil { -			log.Fatalf("Could not encode image: %v\n", err) -		} -	} -} | 
