From the latex2sphinx error log:

<pre>
The following functions are undocumented
@Abs@ Abs
@BackProjectPCA@ [[BackProjectPCA]]
@CV_16SC@ CV_16SC
@CV_16UC@ CV_16UC
@CV_32FC@ CV_32FC
@CV_32SC@ CV_32SC
@CV_64FC@ CV_64FC
@CV_8SC@ CV_8SC
@CV_8UC@ CV_8UC
@CV_CMP@ CV_CMP
@CV_FOURCC@ CV_FOURCC
@CV_IABS@ CV_IABS
@CV_IS_SEQ_CLOSED@ CV_IS_SEQ_CLOSED
@CV_IS_SEQ_CONVEX@ CV_IS_SEQ_CONVEX
@CV_IS_SEQ_CURVE@ CV_IS_SEQ_CURVE
@CV_IS_SEQ_HOLE@ CV_IS_SEQ_HOLE
@CV_IS_SEQ_INDEX@ CV_IS_SEQ_INDEX
@CV_IS_SEQ_SIMPLE@ CV_IS_SEQ_SIMPLE
@CV_MAKETYPE@ CV_MAKETYPE
@CV_MAT_CN@ CV_MAT_CN
@CV_MAT_DEPTH@ CV_MAT_DEPTH
@CV_SIGN@ CV_SIGN
@CalcArrBackProject@ [[CalcArrBackProject]]
@CalcArrHist@ [[CalcArrHist]]
-@CalcOpticalFlowFarneback@- [[CalcOpticalFlowFarneback]]
@CalcPCA@ [[CalcPCA]]
-@CalibrationMatrixValues@- [[CalibrationMatrixValues]]
@CheckArr@ [[CheckArr]]
@ClearSeq@ [[ClearSeq]]
-@ConvertMaps@- [[ConvertMaps]]
@CreateCameraCapture@ [[CreateCameraCapture]]
@CreateFileCapture@ [[CreateFileCapture]]
@CvtPixToPlane@ [[CvtPixToPlane]]
@CvtScale@ [[CvtScale]]
@DecodeImage@ [[DecodeImage]]
@DecodeImageM@ [[DecodeImageM]]
@EncodeImage@ [[EncodeImage]]
-@EqualizeHist@- [[EqualizeHist]]
-@EstimateRigidTransform@- [[EstimateRigidTransform]]
-@GetReal1D@- [[GetReal]]1D
-@GetReal2D@- [[GetReal]]2D
-@GetReal3D@- [[GetReal]]3D
-@GetRealND@- [[GetRealND]]
@HOGDetectMultiScale@ HOGDetectMultiScale
-@HoughCircles@- [[HoughCircles]]
@MatMul@ [[MatMul]]
@MatMulAdd@ [[MatMulAdd]]
@MaxRect@ [[MaxRect]]
-@Normalize@- Normalize
@ProjectPCA@ [[ProjectPCA]]
-@PyrUp@- [[PyrUp]]
-@RandShuffle@- [[RandShuffle]]
@Range@ Range
@RealScalar@ [[RealScalar]]
@Scalar@ Scalar
@ScalarAll@ [[ScalarAll]]
@Scale@ Scale
-@SolvePoly@- [[SolvePoly]]
-@Sort@- Sort
@StartWindowThread@ [[StartWindowThread]]
@Subdiv2DEdgeOrg@ Subdiv2DEdgeOrg
-@Subdiv2DNextEdge@- Subdiv2DNextEdge
-@Watershed@- Watershed
@Zero@

Zero
</pre>

Some of these are synonyms for functions that are documented.