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VideoPipe/third_party/paddle_ocr/include/ocr_rec.h
2026-06-03 12:43:14 +08:00

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// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
//
// 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.
#pragma once
#include <opencv2/core.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/imgproc.hpp>
#include <paddle_api.h>
#include <paddle_inference_api.h>
#include <chrono>
#include <iomanip>
#include <iostream>
#include <ostream>
#include <vector>
#include <cstring>
#include <fstream>
#include <numeric>
#include "ocr_cls.h"
#include "preprocess_op.h"
#include "utility.h"
using namespace paddle_infer;
namespace PaddleOCR {
class CRNNRecognizer {
public:
explicit CRNNRecognizer(const std::string &model_dir, const string &label_path) {
this->label_list_ = Utility::ReadDict(label_path);
this->label_list_.insert(this->label_list_.begin(),
"#"); // blank char for ctc
this->label_list_.push_back(" ");
LoadModel(model_dir);
}
// Load Paddle inference model
void LoadModel(const std::string &model_dir);
void Run(std::vector<cv::Mat> img_list, std::vector<std::string> &rec_texts,
std::vector<float> &rec_text_scores, std::vector<double> &times);
private:
std::shared_ptr<Predictor> predictor_;
bool use_gpu_ = true;
int gpu_id_ = 0;
int gpu_mem_ = 4000;
int cpu_math_library_num_threads_ = 4;
bool use_mkldnn_ = false;
std::vector<std::string> label_list_;
std::vector<float> mean_ = {0.5f, 0.5f, 0.5f};
std::vector<float> scale_ = {1 / 0.5f, 1 / 0.5f, 1 / 0.5f};
bool is_scale_ = true;
bool use_tensorrt_ = false;
std::string precision_ = "fp32";
int rec_batch_num_ = 6;
int rec_img_h_ = 32;
int rec_img_w_ = 320;
std::vector<int> rec_image_shape_ = {3, rec_img_h_, rec_img_w_};
// pre-process
CrnnResizeImg resize_op_;
Normalize normalize_op_;
PermuteBatch permute_op_;
}; // class CrnnRecognizer
} // namespace PaddleOCR