Documentation>C API
Here is a list of all documented variables with links to the struct/union documentation for each field:

### - o -

- O : VlSiftFilt
- o : VlSiftKeypoint
- o_cur : VlSiftFilt
- o_min : VlSiftFilt
- objective : VlSvmStatistics
- octave : VlSiftFilt
- octave_height : VlSiftFilt
- octave_width : VlSiftFilt
- octaveFirstSubdivision : VlScaleSpaceGeometry
- octaveLastSubdivision : VlScaleSpaceGeometry
- octaveResolution : _VlCovDet, VlScaleSpaceGeometry
- orientationScore : VlCovDetFeature