Camera tracking refactoring:

- Deduplicate patetrn sampling used in esm and lmicklt trackers and
  move SamplePattern to image/sample.h - Move computation of Pearson
  product-moment correlation into own function in new file image/correlation.h
  so all trackers can use it to check final correlation.
- Remove SAD tracker. It's almost the same as brute tracker, with only two differences:
  1. It does brute search of affine transformation which in some cases helps to track
     rotating features 2. It didn't use common tracker api which probably gave some
     speed advantage, but lead to a real headache to use it together with other
     trackers leading to duplicated code in blender side.
- Switch blenedr to use brute tracker instead of sad tracker which tracking made
  source code much more simple to follow.

1 files changed, 1 insertions, 6 deletions

diff --git a/extern/libmv/libmv-capi.h b/extern/libmv/libmv-capi.h
index e10d4ef842a..e5728188afb 100644
--- a/extern/libmv/libmv-capi.h
+++ b/extern/libmv/libmv-capi.h
@@ -45,16 +45,11 @@ void libmv_setLoggingVerbosity(int verbosity);
 /* RegionTracker */
 struct libmv_RegionTracker *libmv_pyramidRegionTrackerNew(int max_iterations, int pyramid_level, int half_window_size, double minimum_correlation);
 struct libmv_RegionTracker *libmv_hybridRegionTrackerNew(int max_iterations, int half_window_size, double minimum_correlation);
+struct libmv_RegionTracker *libmv_bruteRegionTrackerNew(int half_window_size, double minimum_correlation);
 int libmv_regionTrackerTrack(struct libmv_RegionTracker *libmv_tracker, const float *ima1, const float *ima2,
 			int width, int height, double  x1, double  y1, double *x2, double *y2);
 void libmv_regionTrackerDestroy(struct libmv_RegionTracker *libmv_tracker);
 
-/* SAD Tracker */
-void libmv_SADSamplePattern(unsigned char *image, int stride,
-			float warp[3][2], unsigned char *pattern, int pattern_size);
-float libmv_SADTrackerTrack(unsigned char *pattern, unsigned char *warped, int pattern_size, unsigned char *image,
-			int stride, int width, int height, float warp[3][2]);
-
 /* Tracks */
 struct libmv_Tracks *libmv_tracksNew(void);
 void libmv_tracksInsert(struct libmv_Tracks *libmv_tracks, int image, int track, double x, double y);