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lstmeval: Improve output by ensuring 'Truth:' text is encoded the same way as OCR output… #3421

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lstmeval: Improve output by ensuring 'Truth:' text is encoded the same way as OCR output… #3421

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8 changes: 7 additions & 1 deletion src/training/unicharset/lstmtester.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -91,6 +91,12 @@ std::string LSTMTester::RunEvalSync(int iteration, const double *training_errors
int error_count = 0;
while (error_count < total_pages_) {
const ImageData *trainingdata = test_data_.GetPageBySerial(eval_iteration);
std::vector<int> truth_labels;
if (!trainer.EncodeString(trainingdata->transcription(), &truth_labels)) {
eval_iteration++;
continue;
}
std::string truth_text = trainer.DecodeLabels(truth_labels);
trainer.SetIteration(++eval_iteration);
NetworkIO fwd_outputs, targets;
Trainability result = trainer.PrepareForBackward(trainingdata, &fwd_outputs, &targets);
Expand All @@ -99,7 +105,7 @@ std::string LSTMTester::RunEvalSync(int iteration, const double *training_errors
word_error += trainer.NewSingleError(tesseract::ET_WORD_RECERR);
++error_count;
if (verbosity > 1 || (verbosity > 0 && result != PERFECT)) {
tprintf("Truth:%s\n", trainingdata->transcription().c_str());
tprintf("Truth:%s\n", truth_text.c_str());
std::vector<int> ocr_labels;
std::vector<int> xcoords;
trainer.LabelsFromOutputs(fwd_outputs, &ocr_labels, &xcoords);
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