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
|
#pragma once
#include <iostream>
#include <leptonica/allheaders.h>
#include <tesseract/baseapi.h>
#include "./image.h"
// OCR configuration
#define CONFIDENCE_THRESHOLD 20.
#define MIN_CHARACTER_COUNT 3
const tesseract::PageIteratorLevel ITER_LEVEL = tesseract::RIL_WORD;
// NOTE: Remember to update size and alignment in hs type on change
struct OCRMatch {
int startX, startY;
int endX, endY;
const char *text;
};
class Recognizer {
tesseract::TessBaseAPI *tesseract;
int x, y, width, height;
bool failed = false;
public:
const char *id;
Recognizer(const char *id, int x, int y, int width, int height)
: id(id), x(x), y(y), width(width), height(height) {
initializeTesseract();
}
~Recognizer() { tesseract->End(); }
void fail(const char *msg);
void recognize(Pix *image);
OCRMatch *fetchMatch(tesseract::ResultIterator *iterator);
std::vector<OCRMatch> getResults();
private:
void initializeTesseract();
};
inline void printMatch(const OCRMatch &match) {
std::cout << "Text: " << match.text << "; Position: (" << match.startX << ","
<< match.startY << ") -> (" << match.endX << "," << match.endY
<< ")" << std::endl
<< std::endl;
}
|
