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/******************************************************************************
** Filename: cutoffs.c
** Purpose: Routines to manipulate an array of class cutoffs.
** Author: Dan Johnson
**
** (c) Copyright Hewlett-Packard Company, 1988.
** 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.
******************************************************************************/
/*----------------------------------------------------------------------------
Include Files and Type Defines
----------------------------------------------------------------------------*/
#include <cstdio>
#include <sstream> // for std::istringstream
#include <string> // for std::string
#include "classify.h"
#include "helpers.h"
#include "serialis.h"
#include <tesseract/unichar.h>
#define MAX_CUTOFF 1000
namespace tesseract {
/**
* Open file, read in all of the class-id/cutoff pairs
* and insert them into the Cutoffs array. Cutoffs are
* indexed in the array by class id. Unused entries in the
* array are set to an arbitrarily high cutoff value.
* @param fp file containing cutoff definitions
* @param Cutoffs array to put cutoffs into
*/
void Classify::ReadNewCutoffs(TFile* fp, uint16_t* Cutoffs) {
int Cutoff;
if (shape_table_ != nullptr) {
if (!shapetable_cutoffs_.DeSerialize(fp)) {
tprintf("Error during read of shapetable pffmtable!\n");
}
}
for (int i = 0; i < MAX_NUM_CLASSES; i++)
Cutoffs[i] = MAX_CUTOFF;
const int kMaxLineSize = 100;
char line[kMaxLineSize];
while (fp->FGets(line, kMaxLineSize) != nullptr) {
std::string Class;
CLASS_ID ClassId;
std::istringstream stream(line);
stream.imbue(std::locale::classic());
stream >> Class >> Cutoff;
if (stream.fail()) {
break;
}
if (Class.compare("NULL") == 0) {
ClassId = unicharset.unichar_to_id(" ");
} else {
ClassId = unicharset.unichar_to_id(Class.c_str());
}
ASSERT_HOST(ClassId >= 0 && ClassId < MAX_NUM_CLASSES);
Cutoffs[ClassId] = Cutoff;
}
}
} // namespace tesseract
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