diff options
Diffstat (limited to 'bucket-lines/bucket.go')
-rw-r--r-- | bucket-lines/bucket.go | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/bucket-lines/bucket.go b/bucket-lines/bucket.go new file mode 100644 index 0000000..5d9271a --- /dev/null +++ b/bucket-lines/bucket.go @@ -0,0 +1,129 @@ +package main + +import ( + "fmt" + "io" + "path/filepath" + "os" + "sort" + "strconv" + + "git.rescribe.xyz/testingtools/lib/line" +) + +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 } + +type BucketStat struct { + name string + num int +} +type BucketStats []BucketStat +func (b BucketStats) Len() int { return len(b) } +func (b BucketStats) Swap(i, j int) { b[i], b[j] = b[j], b[i] } +func (b BucketStats) Less(i, j int) bool { return b[i].num < b[j].num } + +// Copies the image and text for a line into a directory based on +// the line confidence, as defined by the buckets struct +func bucketLine(l line.Detail, buckets BucketSpecs, dirname string) (string, error) { + var bucket string + + todir := "" + for _, b := range buckets { + if l.Avgconf >= b.Min { + todir = b.Name + bucket = b.Name + } + } + + if todir == "" { + return bucket, 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 bucket, err + } + + f, err := os.Create(base + ".png") + if err != nil { + return bucket, err + } + defer f.Close() + + err = l.Img.CopyLineTo(f) + if err != nil { + return bucket, err + } + + f, err = os.Create(base + ".txt") + if err != nil { + return bucket, err + } + defer f.Close() + + _, err = io.WriteString(f, l.Text) + if err != nil { + return bucket, err + } + + return bucket, err +} + +// Copies line images and text into directories based on their +// confidence, as defined by the buckets struct, and returns +// statistics of whire lines went in the process. +func BucketUp(lines line.Details, buckets BucketSpecs, dirname string) (BucketStats, error) { + var all []string + var stats BucketStats + + sort.Sort(lines) + sort.Sort(buckets) + for _, l := range lines { + bname, err := bucketLine(l, buckets, dirname) + if err != nil { + return stats, err + } + all = append(all, bname) + } + + for _, b := range all { + i := sort.Search(len(stats), func(i int) bool { return stats[i].name == b }) + if i == len(stats) { + newstat := BucketStat { b, 0 } + stats = append(stats, newstat) + i = len(stats) - 1 + } + stats[i].num++ + } + + return stats, nil +} + +// Prints statistics of where lines went when bucketing +func PrintBucketStats(w io.Writer, stats BucketStats) { + var total int + for _, s := range stats { + total += s.num + } + + fmt.Fprintf(w, "Copied %d lines\n", total) + fmt.Fprintf(w, "---------------------------------\n") + sort.Sort(stats) + for _, s := range stats { + fmt.Fprintf(w, "Lines in %7s: %2d%%\n", s.name, 100 * s.num / total) + } +} |