/////////////////////////////////////////////////////////////////////// // File: capi.h // Description: C-API TessBaseAPI // // (C) Copyright 2012, Google Inc. // 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 API_CAPI_H_ #define API_CAPI_H_ #ifdef TESS_CAPI_INCLUDE_BASEAPI # include "baseapi.h" # include "pageiterator.h" # include "resultiterator.h" # include "renderer.h" #else # include "platform.h" # include #endif #ifdef __cplusplus extern "C" { #endif #ifndef TESS_CALL # if defined(WIN32) # define TESS_CALL __cdecl # else # define TESS_CALL # endif #endif #ifndef BOOL # define BOOL int # define TRUE 1 # define FALSE 0 #endif #ifdef TESS_CAPI_INCLUDE_BASEAPI typedef tesseract::TessResultRenderer TessResultRenderer; typedef tesseract::TessTextRenderer TessTextRenderer; typedef tesseract::TessHOcrRenderer TessHOcrRenderer; typedef tesseract::TessPDFRenderer TessPDFRenderer; typedef tesseract::TessUnlvRenderer TessUnlvRenderer; typedef tesseract::TessBoxTextRenderer TessBoxTextRenderer; typedef tesseract::TessBaseAPI TessBaseAPI; typedef tesseract::PageIterator TessPageIterator; typedef tesseract::ResultIterator TessResultIterator; typedef tesseract::MutableIterator TessMutableIterator; typedef tesseract::ChoiceIterator TessChoiceIterator; typedef tesseract::OcrEngineMode TessOcrEngineMode; typedef tesseract::PageSegMode TessPageSegMode; typedef tesseract::ImageThresholder TessImageThresholder; typedef tesseract::PageIteratorLevel TessPageIteratorLevel; typedef tesseract::DictFunc TessDictFunc; typedef tesseract::ProbabilityInContextFunc TessProbabilityInContextFunc; // typedef tesseract::ParamsModelClassifyFunc TessParamsModelClassifyFunc; typedef tesseract::FillLatticeFunc TessFillLatticeFunc; typedef tesseract::Dawg TessDawg; typedef tesseract::TruthCallback TessTruthCallback; typedef tesseract::Orientation TessOrientation; typedef tesseract::ParagraphJustification TessParagraphJustification; typedef tesseract::WritingDirection TessWritingDirection; typedef tesseract::TextlineOrder TessTextlineOrder; typedef PolyBlockType TessPolyBlockType; #else typedef struct TessResultRenderer TessResultRenderer; typedef struct TessTextRenderer TessTextRenderer; typedef struct TessHOcrRenderer TessHOcrRenderer; typedef struct TessPDFRenderer TessPDFRenderer; typedef struct TessUnlvRenderer TessUnlvRenderer; typedef struct TessBoxTextRenderer TessBoxTextRenderer; typedef struct TessBaseAPI TessBaseAPI; typedef struct TessPageIterator TessPageIterator; typedef struct TessResultIterator TessResultIterator; typedef struct TessMutableIterator TessMutableIterator; typedef struct TessChoiceIterator TessChoiceIterator; typedef enum TessOcrEngineMode { OEM_TESSERACT_ONLY, OEM_LSTM_ONLY, OEM_TESSERACT_LSTM_COMBINED, OEM_DEFAULT } TessOcrEngineMode; typedef enum TessPageSegMode { PSM_OSD_ONLY, PSM_AUTO_OSD, PSM_AUTO_ONLY, PSM_AUTO, PSM_SINGLE_COLUMN, PSM_SINGLE_BLOCK_VERT_TEXT, PSM_SINGLE_BLOCK, PSM_SINGLE_LINE, PSM_SINGLE_WORD, PSM_CIRCLE_WORD, PSM_SINGLE_CHAR, PSM_SPARSE_TEXT, PSM_SPARSE_TEXT_OSD, PSM_COUNT } TessPageSegMode; typedef enum TessPageIteratorLevel { RIL_BLOCK, RIL_PARA, RIL_TEXTLINE, RIL_WORD, RIL_SYMBOL} TessPageIteratorLevel; typedef enum TessPolyBlockType { PT_UNKNOWN, PT_FLOWING_TEXT, PT_HEADING_TEXT, PT_PULLOUT_TEXT, PT_EQUATION, PT_INLINE_EQUATION, PT_TABLE, PT_VERTICAL_TEXT, PT_CAPTION_TEXT, PT_FLOWING_IMAGE, PT_HEADING_IMAGE, PT_PULLOUT_IMAGE, PT_HORZ_LINE, PT_VERT_LINE, PT_NOISE, PT_COUNT } TessPolyBlockType; typedef enum TessOrientation { ORIENTATION_PAGE_UP, ORIENTATION_PAGE_RIGHT, ORIENTATION_PAGE_DOWN, ORIENTATION_PAGE_LEFT } TessOrientation; typedef enum TessParagraphJustification { JUSTIFICATION_UNKNOWN, JUSTIFICATION_LEFT, JUSTIFICATION_CENTER, JUSTIFICATION_RIGHT } TessParagraphJustification; typedef enum TessWritingDirection { WRITING_DIRECTION_LEFT_TO_RIGHT, WRITING_DIRECTION_RIGHT_TO_LEFT, WRITING_DIRECTION_TOP_TO_BOTTOM } TessWritingDirection; typedef enum TessTextlineOrder { TEXTLINE_ORDER_LEFT_TO_RIGHT, TEXTLINE_ORDER_RIGHT_TO_LEFT, TEXTLINE_ORDER_TOP_TO_BOTTOM } TessTextlineOrder; typedef struct ETEXT_DESC ETEXT_DESC; #endif struct Pix; struct Boxa; struct Pixa; /* General free functions */ TESS_API const char* TESS_CALL TessVersion(); TESS_API void TESS_CALL TessDeleteText(char* text); TESS_API void TESS_CALL TessDeleteTextArray(char** arr); TESS_API void TESS_CALL TessDeleteIntArray(int* arr); #ifdef TESS_CAPI_INCLUDE_BASEAPI TESS_API void TESS_CALL TessDeleteBlockList(BLOCK_LIST* block_list); #endif /* Renderer API */ TESS_API TessResultRenderer* TESS_CALL TessTextRendererCreate(const char* outputbase); TESS_API TessResultRenderer* TESS_CALL TessHOcrRendererCreate(const char* outputbase); TESS_API TessResultRenderer* TESS_CALL TessHOcrRendererCreate2(const char* outputbase, BOOL font_info); TESS_API TessResultRenderer* TESS_CALL TessPDFRendererCreate(const char* outputbase, const char* datadir, BOOL textonly, int jpg_quality); TESS_API TessResultRenderer* TESS_CALL TessUnlvRendererCreate(const char* outputbase); TESS_API TessResultRenderer* TESS_CALL TessBoxTextRendererCreate(const char* outputbase); TESS_API void TESS_CALL TessDeleteResultRenderer(TessResultRenderer* renderer); TESS_API void TESS_CALL TessResultRendererInsert(TessResultRenderer* renderer, TessResultRenderer* next); TESS_API TessResultRenderer* TESS_CALL TessResultRendererNext(TessResultRenderer* renderer); TESS_API BOOL TESS_CALL TessResultRendererBeginDocument(TessResultRenderer* renderer, const char* title); TESS_API BOOL TESS_CALL TessResultRendererAddImage(TessResultRenderer* renderer, TessBaseAPI* api); TESS_API BOOL TESS_CALL TessResultRendererEndDocument(TessResultRenderer* renderer); TESS_API const char* TESS_CALL TessResultRendererExtention(TessResultRenderer* renderer); TESS_API const char* TESS_CALL TessResultRendererTitle(TessResultRenderer* renderer); TESS_API int TESS_CALL TessResultRendererImageNum(TessResultRenderer* renderer); /* Base API */ TESS_API TessBaseAPI* TESS_CALL TessBaseAPICreate(); TESS_API void TESS_CALL TessBaseAPIDelete(TessBaseAPI* handle); TESS_API size_t TESS_CALL TessBaseAPIGetOpenCLDevice(TessBaseAPI* handle, void **device); TESS_API void TESS_CALL TessBaseAPISetInputName( TessBaseAPI* handle, const char* name); TESS_API const char* TESS_CALL TessBaseAPIGetInputName(TessBaseAPI* handle); TESS_API void TESS_CALL TessBaseAPISetInputImage(TessBaseAPI* handle, struct Pix* pix); TESS_API struct Pix* TESS_CALL TessBaseAPIGetInputImage(TessBaseAPI* handle); TESS_API int TESS_CALL TessBaseAPIGetSourceYResolution(TessBaseAPI* handle); TESS_API const char* TESS_CALL TessBaseAPIGetDatapath(TessBaseAPI* handle); TESS_API void TESS_CALL TessBaseAPISetOutputName(TessBaseAPI* handle, const char* name); TESS_API BOOL TESS_CALL TessBaseAPISetVariable(TessBaseAPI* handle, const char* name, const char* value); TESS_API BOOL TESS_CALL TessBaseAPISetDebugVariable(TessBaseAPI* handle, const char* name, const char* value); TESS_API BOOL TESS_CALL TessBaseAPIGetIntVariable( const TessBaseAPI* handle, const char* name, int* value); TESS_API BOOL TESS_CALL TessBaseAPIGetBoolVariable( const TessBaseAPI* handle, const char* name, BOOL* value); TESS_API BOOL TESS_CALL TessBaseAPIGetDoubleVariable(const TessBaseAPI* handle, const char* name, double* value); TESS_API const char* TESS_CALL TessBaseAPIGetStringVariable(const TessBaseAPI* handle, const char* name); TESS_API void TESS_CALL TessBaseAPIPrintVariables( const TessBaseAPI* handle, FILE* fp); TESS_API BOOL TESS_CALL TessBaseAPIPrintVariablesToFile(const TessBaseAPI* handle, const char* filename); #ifdef TESS_CAPI_INCLUDE_BASEAPI TESS_API BOOL TESS_CALL TessBaseAPIGetVariableAsString(TessBaseAPI* handle, const char* name, STRING* val); #endif #ifdef TESS_CAPI_INCLUDE_BASEAPI TESS_API int TESS_CALL TessBaseAPIInit(TessBaseAPI* handle, const char* datapath, const char* language, TessOcrEngineMode mode, char** configs, int configs_size, const STRING* vars_vec, size_t vars_vec_size, const STRING* vars_values, size_t vars_values_size, BOOL set_only_init_params); #endif TESS_API int TESS_CALL TessBaseAPIInit1(TessBaseAPI* handle, const char* datapath, const char* language, TessOcrEngineMode oem, char** configs, int configs_size); TESS_API int TESS_CALL TessBaseAPIInit2(TessBaseAPI* handle, const char* datapath, const char* language, TessOcrEngineMode oem); TESS_API int TESS_CALL TessBaseAPIInit3(TessBaseAPI* handle, const char* datapath, const char* language); TESS_API int TESS_CALL TessBaseAPIInit4(TessBaseAPI* handle, const char* datapath, const char* language, TessOcrEngineMode mode, char** configs, int configs_size, char** vars_vec, char** vars_values, size_t vars_vec_size, BOOL set_only_non_debug_params); TESS_API const char* TESS_CALL TessBaseAPIGetInitLanguagesAsString(const TessBaseAPI* handle); TESS_API char** TESS_CALL TessBaseAPIGetLoadedLanguagesAsVector(const TessBaseAPI* handle); TESS_API char** TESS_CALL TessBaseAPIGetAvailableLanguagesAsVector(const TessBaseAPI* handle); TESS_API int TESS_CALL TessBaseAPIInitLangMod(TessBaseAPI* handle, const char* datapath, const char* language); TESS_API void TESS_CALL TessBaseAPIInitForAnalysePage(TessBaseAPI* handle); TESS_API void TESS_CALL TessBaseAPIReadConfigFile(TessBaseAPI* handle, const char* filename); TESS_API void TESS_CALL TessBaseAPIReadDebugConfigFile(TessBaseAPI* handle, const char* filename); TESS_API void TESS_CALL TessBaseAPISetPageSegMode(TessBaseAPI* handle, TessPageSegMode mode); TESS_API TessPageSegMode TESS_CALL TessBaseAPIGetPageSegMode(const TessBaseAPI* handle); TESS_API char* TESS_CALL TessBaseAPIRect(TessBaseAPI* handle, const unsigned char* imagedata, int bytes_per_pixel, int bytes_per_line, int left, int top, int width, int height); TESS_API void TESS_CALL TessBaseAPIClearAdaptiveClassifier(TessBaseAPI* handle); TESS_API void TESS_CALL TessBaseAPISetImage(TessBaseAPI* handle, const unsigned char* imagedata, int width, int height, int bytes_per_pixel, int bytes_per_line); TESS_API void TESS_CALL TessBaseAPISetImage2(TessBaseAPI* handle, struct Pix* pix); TESS_API void TESS_CALL TessBaseAPISetSourceResolution(TessBaseAPI* handle, int ppi); TESS_API void TESS_CALL TessBaseAPISetRectangle(TessBaseAPI* handle, int left, int top, int width, int height); #ifdef TESS_CAPI_INCLUDE_BASEAPI TESS_API void TESS_CALL TessBaseAPISetThresholder(TessBaseAPI* handle, TessImageThresholder* thresholder); #endif TESS_API struct Pix* TESS_CALL TessBaseAPIGetThresholdedImage( TessBaseAPI* handle); TESS_API struct Boxa* TESS_CALL TessBaseAPIGetRegions( TessBaseAPI* handle, struct Pixa** pixa); TESS_API struct Boxa* TESS_CALL TessBaseAPIGetTextlines( TessBaseAPI* handle, struct Pixa** pixa, int** blockids); TESS_API struct Boxa* TESS_CALL TessBaseAPIGetTextlines1( TessBaseAPI* handle, const BOOL raw_image, const int raw_padding, struct Pixa** pixa, int** blockids, int** paraids); TESS_API struct Boxa* TESS_CALL TessBaseAPIGetStrips( TessBaseAPI* handle, struct Pixa** pixa, int** blockids); TESS_API struct Boxa* TESS_CALL TessBaseAPIGetWords( TessBaseAPI* handle, struct Pixa** pixa); TESS_API struct Boxa* TESS_CALL TessBaseAPIGetConnectedComponents(TessBaseAPI* handle, struct Pixa** cc); TESS_API struct Boxa* TESS_CALL TessBaseAPIGetComponentImages( TessBaseAPI* handle, const TessPageIteratorLevel level, const BOOL text_only, struct Pixa** pixa, int** blockids); TESS_API struct Boxa* TESS_CALL TessBaseAPIGetComponentImages1( TessBaseAPI* handle, const TessPageIteratorLevel level, const BOOL text_only, const BOOL raw_image, const int raw_padding, struct Pixa** pixa, int** blockids, int** paraids); TESS_API int TESS_CALL TessBaseAPIGetThresholdedImageScaleFactor(const TessBaseAPI* handle); TESS_API void TESS_CALL TessBaseAPIDumpPGM(TessBaseAPI* handle, const char* filename); TESS_API TessPageIterator* TESS_CALL TessBaseAPIAnalyseLayout(TessBaseAPI* handle); TESS_API int TESS_CALL TessBaseAPIRecognize(TessBaseAPI* handle, ETEXT_DESC* monitor); TESS_API int TESS_CALL TessBaseAPIRecognizeForChopTest(TessBaseAPI* handle, ETEXT_DESC* monitor); TESS_API BOOL TESS_CALL TessBaseAPIProcessPages(TessBaseAPI* handle, const char* filename, const char* retry_config, int timeout_millisec, TessResultRenderer* renderer); TESS_API BOOL TESS_CALL TessBaseAPIProcessPage(TessBaseAPI* handle, struct Pix* pix, int page_index, const char* filename, const char* retry_config, int timeout_millisec, TessResultRenderer* renderer); TESS_API TessResultIterator* TESS_CALL TessBaseAPIGetIterator(TessBaseAPI* handle); TESS_API TessMutableIterator* TESS_CALL TessBaseAPIGetMutableIterator(TessBaseAPI* handle); TESS_API char* TESS_CALL TessBaseAPIGetUTF8Text(TessBaseAPI* handle); TESS_API char* TESS_CALL TessBaseAPIGetHOCRText(TessBaseAPI* handle, int page_number); TESS_API char* TESS_CALL TessBaseAPIGetBoxText(TessBaseAPI* handle, int page_number); TESS_API char* TESS_CALL TessBaseAPIGetUNLVText(TessBaseAPI* handle); TESS_API int TESS_CALL TessBaseAPIMeanTextConf(TessBaseAPI* handle); TESS_API int* TESS_CALL TessBaseAPIAllWordConfidences(TessBaseAPI* handle); TESS_API BOOL TESS_CALL TessBaseAPIAdaptToWordStr(TessBaseAPI* handle, TessPageSegMode mode, const char* wordstr); TESS_API void TESS_CALL TessBaseAPIClear(TessBaseAPI* handle); TESS_API void TESS_CALL TessBaseAPIEnd(TessBaseAPI* handle); TESS_API int TESS_CALL TessBaseAPIIsValidWord(TessBaseAPI* handle, const char* word); TESS_API BOOL TESS_CALL TessBaseAPIGetTextDirection(TessBaseAPI* handle, int* out_offset, float* out_slope); #ifdef TESS_CAPI_INCLUDE_BASEAPI TESS_API void TESS_CALL TessBaseAPISetDictFunc(TessBaseAPI* handle, TessDictFunc f); TESS_API void TESS_CALL TessBaseAPIClearPersistentCache(TessBaseAPI* handle); TESS_API void TESS_CALL TessBaseAPISetProbabilityInContextFunc(TessBaseAPI* handle, TessProbabilityInContextFunc f); TESS_API void TESS_CALL TessBaseAPISetFillLatticeFunc(TessBaseAPI* handle, TessFillLatticeFunc f); // Call TessDeleteText(*best_script_name) to free memory allocated by this function TESS_API BOOL TESS_CALL TessBaseAPIDetectOrientationScript(TessBaseAPI* handle, int* orient_deg, float* orient_conf, const char **script_name, float* script_conf); TESS_API void TESS_CALL TessBaseAPIGetFeaturesForBlob(TessBaseAPI* handle, TBLOB* blob, INT_FEATURE_STRUCT* int_features, int* num_features, int* FeatureOutlineIndex); TESS_API ROW* TESS_CALL TessFindRowForBox(BLOCK_LIST* blocks, int left, int top, int right, int bottom); TESS_API void TESS_CALL TessBaseAPIRunAdaptiveClassifier(TessBaseAPI* handle, TBLOB* blob, int num_max_matches, int* unichar_ids, float* ratings, int* num_matches_returned); #endif TESS_API const char* TESS_CALL TessBaseAPIGetUnichar(TessBaseAPI* handle, int unichar_id); #ifdef TESS_CAPI_INCLUDE_BASEAPI TESS_API const TessDawg* TESS_CALL TessBaseAPIGetDawg(const TessBaseAPI* handle, int i); TESS_API int TESS_CALL TessBaseAPINumDawgs(const TessBaseAPI* handle); #endif #ifdef TESS_CAPI_INCLUDE_BASEAPI TESS_API ROW* TESS_CALL TessMakeTessOCRRow(float baseline, float xheight, float descender, float ascender); TESS_API TBLOB* TESS_CALL TessMakeTBLOB(Pix* pix); TESS_API void TESS_CALL TessNormalizeTBLOB(TBLOB* tblob, ROW* row, BOOL numeric_mode); TESS_API TessOcrEngineMode TESS_CALL TessBaseAPIOem(const TessBaseAPI* handle); TESS_API void TESS_CALL TessBaseAPIInitTruthCallback(TessBaseAPI* handle, TessTruthCallback* cb); #endif TESS_API void TESS_CALL TessBaseAPISetMinOrientationMargin(TessBaseAPI* handle, double margin); #ifdef TESS_CAPI_INCLUDE_BASEAPI TESS_API void TESS_CALL TessBaseGetBlockTextOrientations(TessBaseAPI* handle, int** block_orientation, BOOL** vertical_writing); TESS_API BLOCK_LIST* TESS_CALL TessBaseAPIFindLinesCreateBlockList(TessBaseAPI* handle); #endif /* Page iterator */ TESS_API void TESS_CALL TessPageIteratorDelete(TessPageIterator* handle); TESS_API TessPageIterator* TESS_CALL TessPageIteratorCopy(const TessPageIterator* handle); TESS_API void TESS_CALL TessPageIteratorBegin(TessPageIterator* handle); TESS_API BOOL TESS_CALL TessPageIteratorNext(TessPageIterator* handle, TessPageIteratorLevel level); TESS_API BOOL TESS_CALL TessPageIteratorIsAtBeginningOf(const TessPageIterator* handle, TessPageIteratorLevel level); TESS_API BOOL TESS_CALL TessPageIteratorIsAtFinalElement(const TessPageIterator* handle, TessPageIteratorLevel level, TessPageIteratorLevel element); TESS_API BOOL TESS_CALL TessPageIteratorBoundingBox(const TessPageIterator* handle, TessPageIteratorLevel level, int* left, int* top, int* right, int* bottom); TESS_API TessPolyBlockType TESS_CALL TessPageIteratorBlockType(const TessPageIterator* handle); TESS_API struct Pix* TESS_CALL TessPageIteratorGetBinaryImage(const TessPageIterator* handle, TessPageIteratorLevel level); TESS_API struct Pix* TESS_CALL TessPageIteratorGetImage(const TessPageIterator* handle, TessPageIteratorLevel level, int padding, struct Pix* original_image, int* left, int* top); TESS_API BOOL TESS_CALL TessPageIteratorBaseline(const TessPageIterator* handle, TessPageIteratorLevel level, int* x1, int* y1, int* x2, int* y2); TESS_API void TESS_CALL TessPageIteratorOrientation(TessPageIterator* handle, TessOrientation* orientation, TessWritingDirection* writing_direction, TessTextlineOrder* textline_order, float* deskew_angle); TESS_API void TESS_CALL TessPageIteratorParagraphInfo(TessPageIterator* handle, TessParagraphJustification* justification, BOOL *is_list_item, BOOL *is_crown, int *first_line_indent); /* Result iterator */ TESS_API void TESS_CALL TessResultIteratorDelete(TessResultIterator* handle); TESS_API TessResultIterator* TESS_CALL TessResultIteratorCopy(const TessResultIterator* handle); TESS_API TessPageIterator* TESS_CALL TessResultIteratorGetPageIterator(TessResultIterator* handle); TESS_API const TessPageIterator* TESS_CALL TessResultIteratorGetPageIteratorConst(const TessResultIterator* handle); TESS_API TessChoiceIterator* TESS_CALL TessResultIteratorGetChoiceIterator(const TessResultIterator* handle); TESS_API BOOL TESS_CALL TessResultIteratorNext(TessResultIterator* handle, TessPageIteratorLevel level); TESS_API char* TESS_CALL TessResultIteratorGetUTF8Text(const TessResultIterator* handle, TessPageIteratorLevel level); TESS_API float TESS_CALL TessResultIteratorConfidence(const TessResultIterator* handle, TessPageIteratorLevel level); TESS_API const char* TESS_CALL TessResultIteratorWordRecognitionLanguage(const TessResultIterator* handle); TESS_API const char* TESS_CALL TessResultIteratorWordFontAttributes(const TessResultIterator* handle, BOOL* is_bold, BOOL* is_italic, BOOL* is_underlined, BOOL* is_monospace, BOOL* is_serif, BOOL* is_smallcaps, int* pointsize, int* font_id); TESS_API BOOL TESS_CALL TessResultIteratorWordIsFromDictionary(const TessResultIterator* handle); TESS_API BOOL TESS_CALL TessResultIteratorWordIsNumeric(const TessResultIterator* handle); TESS_API BOOL TESS_CALL TessResultIteratorSymbolIsSuperscript(const TessResultIterator* handle); TESS_API BOOL TESS_CALL TessResultIteratorSymbolIsSubscript(const TessResultIterator* handle); TESS_API BOOL TESS_CALL TessResultIteratorSymbolIsDropcap(const TessResultIterator* handle); TESS_API void TESS_CALL TessChoiceIteratorDelete(TessChoiceIterator* handle); TESS_API BOOL TESS_CALL TessChoiceIteratorNext(TessChoiceIterator* handle); TESS_API const char* TESS_CALL TessChoiceIteratorGetUTF8Text(const TessChoiceIterator* handle); TESS_API float TESS_CALL TessChoiceIteratorConfidence(const TessChoiceIterator* handle); #ifdef __cplusplus } #endif #endif // API_CAPI_H_