Add treelookups for nonintel

modules/features2d/include/opencv2/features2d.hpp

@@ -424,6 +424,9 @@ circle around this pixel.
 AgastFeatureDetector::AGAST_5_8, AgastFeatureDetector::AGAST_7_12d,
 AgastFeatureDetector::AGAST_7_12s, AgastFeatureDetector::OAST_9_16
 
+For non-Intel platforms, there is a tree optimised variant of AGAST with same numerical results.
+The 32-bit binary tree tables were generated automatically from original code using perl script.
+The perl script and examples of tree generation are placed in features2d/doc folder.
 Detects corners using the AGAST algorithm by @cite mair2010_agast .
 
  */

modules/features2d/src/agast_score.hpp

@@ -52,11 +52,17 @@ The references are:
 namespace cv
 {
 
+#if !(defined __i386__ || defined(_M_IX86) || defined __x86_64__ || defined(_M_X64))
+int agast_tree_search(const unsigned long table_struct32[], int pixel_[], const unsigned char* const ptr, int threshold);
+#endif //!(defined __i386__ || defined(_M_IX86) || defined __x86_64__ || defined(_M_X64))
+
+
 void makeAgastOffsets(int pixel[16], int row_stride, int type);
 
 template<int type>
 int agast_cornerScore(const uchar* ptr, const int pixel[], int threshold);
 
+
 }
 #endif
 #endif

modules/features2d/src/mser.cpp

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