1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
package hocr
// TODO: Parse line name to zero pad line numbers, so they can
// be sorted easily
import (
"image"
"image/png"
"io/ioutil"
"log"
"os"
"path/filepath"
"strings"
"rescribe.xyz/go.git/lib/line"
)
func getLineText(l OcrLine) (string) {
linetext := ""
linetext = l.Text
if noText(linetext) {
linetext = ""
for _, w := range l.Words {
if w.Class != "ocrx_word" {
continue
}
linetext += w.Text + " "
}
}
if noText(linetext) {
linetext = ""
for _, w := range l.Words {
if w.Class != "ocrx_word" {
continue
}
for _, c := range w.Chars {
if c.Class != "ocrx_cinfo" {
continue
}
linetext += c.Text
}
linetext += " "
}
}
linetext = strings.TrimRight(linetext, " ")
linetext += "\n"
return linetext
}
func parseLineDetails(h Hocr, i image.Image, name string) (line.Details, error) {
lines := make(line.Details, 0)
for _, l := range h.Lines {
totalconf := float64(0)
num := 0
for _, w := range l.Words {
c, err := wordConf(w.Title)
if err != nil {
return lines, err
}
num++
totalconf += c
}
coords, err := boxCoords(l.Title)
if err != nil {
return lines, err
}
var ln line.Detail
ln.Name = l.Id
ln.Avgconf = (totalconf / float64(num)) / 100
ln.Text = getLineText(l)
ln.OcrName = name
if i != nil {
var imgd line.ImgDirect
imgd.Img = i.(*image.Gray).SubImage(image.Rect(coords[0], coords[1], coords[2], coords[3]))
ln.Img = imgd
}
lines = append(lines, ln)
}
return lines, nil
}
func GetLineDetails(hocrfn string) (line.Details, error) {
var newlines line.Details
file, err := ioutil.ReadFile(hocrfn)
if err != nil {
return newlines, err
}
h, err := Parse(file)
if err != nil {
return newlines, err
}
var img image.Image
pngfn := strings.Replace(hocrfn, ".hocr", ".png", 1)
pngf, err := os.Open(pngfn)
if err != nil {
log.Println("Warning: can't open image %s\n", pngfn)
} else {
defer pngf.Close()
img, err = png.Decode(pngf)
if err != nil {
log.Println("Warning: can't load image %s\n", pngfn)
}
}
n := strings.Replace(filepath.Base(hocrfn), ".hocr", "", 1)
return parseLineDetails(h, img, n)
}
func GetLineBasics(hocrfn string) (line.Details, error) {
var newlines line.Details
file, err := ioutil.ReadFile(hocrfn)
if err != nil {
return newlines, err
}
h, err := Parse(file)
if err != nil {
return newlines, err
}
n := strings.Replace(filepath.Base(hocrfn), ".hocr", "", 1)
return parseLineDetails(h, nil, n)
}
|
