Merge pull request #1493 from alicevision/dev/bracketsSize

Deal with multiple brackets with same score

src/aliceVision/hdr/brackets.cpp

@@ -11,6 +11,8 @@ namespace hdr {
 
 bool estimateBracketsFromSfmData(std::vector<std::vector<std::shared_ptr<sfmData::View>>>& groups, const sfmData::SfMData& sfmData, size_t countBrackets)
 {
+ groups.clear();
+
  size_t countImages = sfmData.getViews().size();
  if(countImages == 0)
  {
@@ -53,7 +55,7 @@ bool estimateBracketsFromSfmData(std::vector<std::vector<std::shared_ptr<sfmData
  }
 
  std::vector<std::shared_ptr<sfmData::View>> group;
- double lastExposure = std::numeric_limits<double>::max();
+ double lastExposure = std::numeric_limits<double>::min();
  for(auto& view : viewsOrderedByName)
  {
  if (countBrackets > 0)
@@ -110,6 +112,12 @@ bool estimateBracketsFromSfmData(std::vector<std::vector<std::shared_ptr<sfmData
  maxSize = item.second;
  bestBracketCount = item.first;
  }
+ else if (item.second == maxSize && item.first > bestBracketCount)
+ {
+ //If two brackets size have the same vote number, 
+ //Keep the larger one (Just to avoid keeping only the outlier)
+ bestBracketCount = item.first;
+ }
  }
 
  //Only keep groups with majority bracket size