Add PaddleOCRv3 & PaddleOCRv2 Support (#139)

* Add PaddleOCR Support

* Add PaddleOCR Support

* Add PaddleOCRv3 Support

* Add PaddleOCRv3 Support

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Add PaddleOCRv3 Support

* Add PaddleOCRv3 Supports

* Add PaddleOCRv3 Suport

* Fix Rec diff

* Remove useless functions

* Remove useless comments

* Add PaddleOCRv2 Support

csrc/fastdeploy/vision/ocr/ppocr/ppocr_system_v3.h

@@ -0,0 +1,52 @@
+// Copyright (c) 2022 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 <vector>
+
+#include "fastdeploy/fastdeploy_model.h"
+#include "fastdeploy/vision/common/processors/transform.h"
+#include "fastdeploy/vision/common/result.h"
+
+#include "fastdeploy/vision/ocr/ppocr/classifier.h"
+#include "fastdeploy/vision/ocr/ppocr/dbdetector.h"
+#include "fastdeploy/vision/ocr/ppocr/recognizer.h"
+#include "fastdeploy/vision/ocr/ppocr/utils/ocr_postprocess_op.h"
+
+namespace fastdeploy {
+namespace application {
+namespace ocrsystem {
+
+class FASTDEPLOY_DECL PPOCRSystemv3 : public FastDeployModel {
+ public:
+  PPOCRSystemv3(fastdeploy::vision::ocr::DBDetector* ocr_det = nullptr,
+                fastdeploy::vision::ocr::Classifier* ocr_cls = nullptr,
+                fastdeploy::vision::ocr::Recognizer* ocr_rec = nullptr);
+
+  fastdeploy::vision::ocr::DBDetector* detector = nullptr;
+  fastdeploy::vision::ocr::Classifier* classifier = nullptr;
+  fastdeploy::vision::ocr::Recognizer* recognizer = nullptr;
+
+  bool Predict(cv::Mat* img, fastdeploy::vision::OCRResult* result);
+
+ private:
+  void Detect(cv::Mat* img, fastdeploy::vision::OCRResult* result);
+  void Recognize(cv::Mat* img, fastdeploy::vision::OCRResult* result);
+  void Classify(cv::Mat* img, fastdeploy::vision::OCRResult* result);
+};
+
+}  // namespace ocrsystem
+}  // namespace application
+}  // namespace fastdeploy