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
132
133
134
135
136
137
138
139
140
|
///////////////////////////////////////////////////////////////////////
// File: tessdll.h
// Description: Windows dll interface for Tesseract.
// Author: Glen Wernersbach
// Created: Tue May 15 10:30:01 PDT 2007
//
// (C) Copyright 2007, Jetsoftdev.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
///////////////////////////////////////////////////////////////////////
#ifndef __cplusplus
typedef BOOL bool;
#endif /* __cplusplus */
#include "ocrclass.h"
#ifdef __cplusplus
#include "baseapi.h"
//This is an exposed C++
class TESSDLL_API TessDllAPI : public tesseract::TessBaseAPI
{
public:
//lang is the code of the language for which the data will be loaded.
//(Codes follow ISO 639-3.) If it is NULL, english (eng) will be loaded.
TessDllAPI(const char* lang = NULL) ;
~TessDllAPI ();
//xsize should be the width of line in bytes times 8
//ysize is the height
//pass through a buffer of bytes for a 1 bit per pixel bitmap
//BeginPage assumes the first memory address is the bottom of the image
//BeginPageUpright assumes the first memory address is the top of the image
int BeginPage(uinT32 xsize,uinT32 ysize,unsigned char *buf);
int BeginPageUpright(uinT32 xsize,uinT32 ysize,unsigned char *buf);
// This could probably be combined with about in a one function bpp=1
int BeginPage(uinT32 xsize,uinT32 ysize,unsigned char *buf,uinT8 bpp);
int BeginPageUpright(uinT32 xsize,uinT32 ysize,unsigned char *buf, uinT8 bpp);
void EndPage();
//This allows you to extract one word or section from the bitmap or
//the whole page
//To extract the whole page just enter zeros for left, right, top, bottom
//Note: getting one word at time is not yet optimized for speed.
//limit of 32000 character can be returned
//see ocrclass.h for a decription of the ETEXT_DESC file
ETEXT_DESC *Recognize_a_Block(uinT32 left,uinT32 right,
uinT32 top,uinT32 bottom);
ETEXT_DESC *Recognize_all_Words(void);
private:
int ProcessPagePass1();
unsigned char *membuf;
};
#endif
#ifdef __cplusplus
extern "C"
{
#endif
#ifndef TESSDLL_API
#ifdef TESSDLL_EXPORTS
#define TESSDLL_API __declspec(dllexport)
#elif defined(TESSDLL_IMPORTS)
#define TESSDLL_API __declspec(dllimport)
#else
#define TESSDLL_API
#endif
#endif
//The functions below provide a c wrapper to a global recognize class object
//xsize should be the width of line in bytes times 8
//ysize is the height
//pass through a buffer of bytes for a 1 bit per pixel bitmap
//BeginPage assumes the first memory address is the bottom of the image (MS DIB format)
//BeginPageUpright assumes the first memory address is the top of the image (TIFF format)
//lang is the code of the language for which the data will be loaded.
//(Codes follow ISO 639-3.) If it is NULL, english (eng) will be loaded.
TESSDLL_API int __cdecl TessDllBeginPage(uinT32 xsize,uinT32 ysize,
unsigned char *buf);
TESSDLL_API int __cdecl TessDllBeginPageLang(uinT32 xsize,uinT32 ysize,
unsigned char *buf,
const char* lang);
TESSDLL_API int __cdecl TessDllBeginPageUpright(uinT32 xsize,uinT32 ysize,
unsigned char *buf,
const char* lang);
//Added in version 2.0 to allow users to specify bytes per pixel to do
//1 for binary biptmap
//8 for gray
//24 bit for color RGB
TESSDLL_API int __cdecl TessDllBeginPageBPP(uinT32 xsize,uinT32 ysize,
unsigned char *buf,uinT8 bpp);
TESSDLL_API int __cdecl TessDllBeginPageLangBPP(uinT32 xsize,uinT32 ysize,
unsigned char *buf,
const char* lang,uinT8 bpp);
TESSDLL_API int __cdecl TessDllBeginPageUprightBPP(uinT32 xsize,uinT32 ysize,
unsigned char *buf,
const char* lang,uinT8 bpp);
TESSDLL_API void __cdecl TessDllEndPage(void);
//This allows you to extract one word or section from the bitmap or
//the whole page
//To extract the whole page just enter zeros for left, right, top, bottom
//Note: getting one word at time is not yet optimized for speed.
//limit of 32000 character can be returned
//see ocrclass.h for a decription of the ETEXT_DESC file
TESSDLL_API ETEXT_DESC * __cdecl TessDllRecognize_a_Block(uinT32 left,
uinT32 right,
uinT32 top,
uinT32 bottom);
TESSDLL_API ETEXT_DESC * __cdecl TessDllRecognize_all_Words();
//This will release any memory associated with the recognize class object
TESSDLL_API void __cdecl TessDllRelease();
#ifdef __cplusplus
}
#endif
|
