org.opencv.core
Classes 
Algorithm
Core
Core.MinMaxLocResult
CvType
Mat
MatOfByte
MatOfDMatch
MatOfDouble
MatOfFloat
MatOfFloat4
MatOfFloat6
MatOfInt
MatOfInt4
MatOfKeyPoint
MatOfPoint
MatOfPoint2f
MatOfPoint3
MatOfPoint3f
MatOfRect
Point
Point3
Range
Rect
RotatedRect
Scalar
Size
TermCriteria
Exceptions 
CvException