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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.
// prob processes .prob files generated by ocropus
package prob
import (
"io/ioutil"
"path/filepath"
"strconv"
"strings"
"rescribe.xyz/utils/pkg/line"
)
func getLineAvg(f string) (float64, error) {
totalconf := float64(0)
num := 0
prob, err := ioutil.ReadFile(f)
if err != nil {
return 0, err
}
for _, l := range strings.Split(string(prob), "\n") {
fields := strings.Fields(l)
if len(fields) == 2 {
conf, err := strconv.ParseFloat(fields[1], 64)
if err != nil {
continue
}
totalconf += conf
num += 1
}
}
if num <= 0 {
return 0, nil
}
avg := totalconf / float64(num)
return avg, nil
}
// GetLineDetails parses a .prob and corresponding .txt file
func GetLineDetails(probfn string) (line.Details, error) {
var l line.Detail
lines := make(line.Details, 0)
avg, err := getLineAvg(probfn)
if err != nil {
return lines, err
}
filebase := strings.Replace(probfn, ".prob", "", 1)
txt, err := ioutil.ReadFile(filebase + ".txt")
if err != nil {
return lines, err
}
l.Name = filepath.Base(filebase)
l.Avgconf = avg
l.Text = string(txt)
l.OcrName = filepath.Base(filepath.Dir(filebase))
var imgfn line.ImgPath
imgfn.Path = filebase + ".bin.png"
l.Img = imgfn
lines = append(lines, l)
return lines, nil
}
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