Create general BucketUp function, use it for line-conf-buckets

1 files changed, 82 insertions, 0 deletions

diff --git a/parse/bucket.go b/parse/bucket.go
new file mode 100644
index 0000000..3a4cd6a
--- /dev/null
+++ b/parse/bucket.go
@@ -0,0 +1,82 @@
+package parse
+
+import (
+	"io"
+	"path/filepath"
+	"os"
+	"sort"
+	"strconv"
+)
+
+type BucketSpec struct {
+	Min float64
+	Name string
+}
+type BucketSpecs []BucketSpec
+func (b BucketSpecs) Len() int { return len(b) }
+func (b BucketSpecs) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
+func (b BucketSpecs) Less(i, j int) bool { return b[i].Min < b[j].Min }
+
+func bucketLine(l LineDetail, buckets BucketSpecs, dirname string) error {
+	todir := ""
+	for _, b := range buckets {
+		if l.Avgconf >= b.Min {
+			todir = b.Name
+		}
+	}
+
+	if todir == "" {
+		return nil
+	}
+
+	avgstr := strconv.FormatFloat(l.Avgconf, 'G', -1, 64)
+	if len(avgstr) > 2 {
+		avgstr = avgstr[2:]
+	}
+
+	base := filepath.Join(dirname, todir, filepath.Base(l.OcrName) + "_" + l.Name + "_" + avgstr)
+
+	err := os.MkdirAll(filepath.Join(dirname, todir), 0700)
+	if err != nil {
+		return err
+	}
+
+	f, err := os.Create(base + ".png")
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	err = l.Img.CopyLineTo(f)
+	if err != nil {
+		return err
+	}
+
+	f, err = os.Create(base + ".txt")
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	_, err = io.WriteString(f, l.Text)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Copies line images and text into directories based on their
+// confidence, as defined by the buckets struct
+func BucketUp(lines LineDetails, buckets BucketSpecs, dirname string) error {
+	sort.Sort(buckets)
+	// TODO: record and print out summary of % in each bucket category (see how tools did it)
+	for _, l := range lines {
+		err := bucketLine(l, buckets, dirname)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}