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/visualize/ocr.cc

@@ -0,0 +1,46 @@
+// 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.
+
+#ifdef ENABLE_VISION_VISUALIZE
+
+#include "fastdeploy/vision/visualize/visualize.h"
+#include "opencv2/imgproc/imgproc.hpp"
+
+namespace fastdeploy {
+namespace vision {
+
+cv::Mat Visualize::VisOcr(const cv::Mat &im, const OCRResult &ocr_result) {
+  auto vis_im = im.clone();
+
+  for (int n = 0; n < ocr_result.boxes.size(); n++) {
+    //遍历每一个盒子
+    cv::Point rook_points[4];
+
+    for (int m = 0; m < 4; m++) {
+      //对每一个盒子 array<float,8>
+      rook_points[m] = cv::Point(int(ocr_result.boxes[n][m * 2]),
+                                 int(ocr_result.boxes[n][m * 2 + 1]));
+    }
+
+    const cv::Point *ppt[1] = {rook_points};
+    int npt[] = {4};
+    cv::polylines(vis_im, ppt, npt, 1, 1, CV_RGB(0, 255, 0), 2, 8, 0);
+  }
+
+  return vis_im;
+}
+
+}  // namespace vision
+}  // namespace fastdeploy
+#endif