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// Copyright 2019 Nick White.
// Use of this source code is governed by the GPLv3
// license that can be found in the LICENSE file.
// confgraph creates a graph showing the average word confidence
// of each page of hOCR in a directory.
package main
import (
"flag"
"fmt"
"log"
"os"
"path/filepath"
"strings"
"rescribe.xyz/bookpipeline"
"rescribe.xyz/utils/pkg/hocr"
)
const usage = `Usage: confgraph hocrdir graph.png
confgraph creates a graph showing average word confidence of each
page of hOCR in a directory.
`
func walker(confs *[]*bookpipeline.Conf) filepath.WalkFunc {
return func(path string, info os.FileInfo, err error) error {
if info.IsDir() {
return nil
}
if !strings.HasSuffix(path, ".hocr") {
return nil
}
avg, err := hocr.GetAvgConf(path)
if err != nil {
if err.Error() == "No words found" {
return nil
}
return err
}
c := bookpipeline.Conf{
Conf: avg,
Path: path,
}
*confs = append(*confs, &c)
return nil
}
}
func main() {
flag.Usage = func() {
fmt.Fprintln(flag.CommandLine.Output(), usage)
flag.PrintDefaults()
}
flag.Parse()
if flag.NArg() != 2 {
flag.Usage()
return
}
var confs []*bookpipeline.Conf
err := filepath.Walk(flag.Arg(0), walker(&confs))
if err != nil {
log.Fatalln("Failed to walk", flag.Arg(0), err)
}
// Structure to fit what bookpipeline.Graph needs
// TODO: probably reorganise bookpipeline to just need []*Conf
cconfs := make(map[string]*bookpipeline.Conf)
for _, c := range confs {
cconfs[c.Path] = c
}
fn := flag.Arg(1)
f, err := os.Create(fn)
if err != nil {
log.Fatalln("Error creating file", fn, err)
}
defer f.Close()
err = bookpipeline.Graph(cconfs, filepath.Base(flag.Arg(0)), f)
if err != nil {
log.Fatalln("Error creating graph", err)
}
}
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