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      1 /*
      2  * cv_capi_feature_match.h - optical flow feature match
      3  *
      4  *  Copyright (c) 2016-2017 Intel Corporation
      5  *
      6  * Licensed under the Apache License, Version 2.0 (the "License");
      7  * you may not use this file except in compliance with the License.
      8  * You may obtain a copy of the License at
      9  *
     10  *   http://www.apache.org/licenses/LICENSE-2.0
     11  *
     12  * Unless required by applicable law or agreed to in writing, software
     13  * distributed under the License is distributed on an "AS IS" BASIS,
     14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15  * See the License for the specific language governing permissions and
     16  * limitations under the License.
     17  *
     18  * Author: Wind Yuan <feng.yuan (at) intel.com>
     19  * Author: Yinhang Liu <yinhangx.liu (at) intel.com>
     20  * Author: Zong Wei <wei.zong (at) intel.com>
     21  */
     22 
     23 #ifndef CV_CAPI_FEATURE_MATCH_H
     24 #define CV_CAPI_FEATURE_MATCH_H
     25 
     26 #include <xcam_std.h>
     27 #include <video_buffer.h>
     28 #include <interface/feature_match.h>
     29 
     30 #ifdef ANDROID
     31 #include <cv.h>
     32 #else
     33 #include <opencv2/opencv.hpp>
     34 #endif
     35 
     36 namespace XCam {
     37 
     38 class CVCapiFeatureMatch
     39     : public FeatureMatch
     40 {
     41 public:
     42     explicit CVCapiFeatureMatch ();
     43 
     44     void optical_flow_feature_match (
     45         const SmartPtr<VideoBuffer> &left_buf, const SmartPtr<VideoBuffer> &right_buf,
     46         Rect &left_img_crop, Rect &right_img_crop, int dst_width);
     47 
     48     void set_ocl (bool use_ocl) {
     49         XCAM_UNUSED (use_ocl);
     50     }
     51     bool is_ocl_path () {
     52         return false;
     53     }
     54 
     55 protected:
     56     bool get_crop_image (const SmartPtr<VideoBuffer> &buffer, const Rect &crop_rect,
     57                          std::vector<char> &crop_image, CvMat &img);
     58 
     59     void add_detected_data (CvArr* image, std::vector<CvPoint2D32f> &corners);
     60     void get_valid_offsets (std::vector<CvPoint2D32f> &corner0, std::vector<CvPoint2D32f> &corner1,
     61                             std::vector<char> &status, std::vector<float> &error,
     62                             std::vector<float> &offsets, float &sum, int &count,
     63                             CvArr* out_image, CvSize &img0_size);
     64 
     65     void calc_of_match (CvArr* image0, CvArr* image1,
     66                         std::vector<CvPoint2D32f> &corner0, std::vector<CvPoint2D32f> &corner1,
     67                         std::vector<char> &status, std::vector<float> &error,
     68                         int &last_count, float &last_mean_offset, float &out_x_offset);
     69 
     70     void detect_and_match (CvArr* img_left, CvArr* img_right, Rect &crop_left, Rect &crop_right,
     71                            int &valid_count, float &mean_offset, float &x_offset, int dst_width);
     72 
     73 private:
     74     XCAM_DEAD_COPY (CVCapiFeatureMatch);
     75 
     76     std::vector<char> _left_crop_image;
     77     std::vector<char> _right_crop_image;
     78 };
     79 
     80 }
     81 
     82 #endif // CV_CAPI_FEATURE_MATCH_H
     83