OpenCVWrappers

core

Operations on Arrays

• abs
• absdiff
• add
• addWeighted
• bitwise_and
• bitwise_not
• bitwise_or
• bitwise_xor
• compare
• convertScaleAbs
• dct
• dft
• divide
• exp
• flip
• idct
• idft
• inRange
• log
• lut: requires 256 parameter matrix
• max
• mean
• meanStdDev
• merge: for a fixed number of input arrays?
• min
• multiply
• perspectiveTransform
• pow
• randu
• randn
• repeat
• scaleAdd
• sqrt
• subtract
• sum
• transform

Drawing Functions

• circle
• ellipse
• fillConvexPoly
• fillPoly
• line
• rectangle
• polylines: requires list of data as data type, or support only one line

imgproc

Image Filtering

• bilateralFilter
• blur
• boxFilter
• dilate
• erode
• filter2D
• GaussianBlur
• medianBlur
• morphologyEx
• Laplacian
• pyrDown
• pyrUp
• sepFilter2D
• Smooth
• Sobel
• Scharr

Geometric Image Transformations

• remap
• resize
• warpAffine
• warpPerspective
• undistort
• undistortPoints

Miscellaneous Image Transformations

• adaptiveThreshold
• cvtColor
• distanceTransform
• floodFill: only single channel, no support for loDiff and upDiff
• integral
• threshold
• watershed

Histograms

• calcHist: only one dimension, only uniform bins

Structural Analysis and Shape Descriptors

• moments: only for contours or also for images? how to treat moment structure?
• HuMoments: how to treat moment structure?
• findContours: requires list of data as data type
• drawContours: draw a list of contours (as returned by findContours) or a single contour (as used by the functions below)?
• approxPolyDP
• arcLength
• boundingRect
• contourArea
• convexHull
• fitEllipse
• fitLine
• minAreaRect: how to store a rotated rectangle?
• minEnclosingCircle
• matchShapes: only for contours or also for images?
• pointPolygonTest: measure distance and/or simple check?

Feature Detection

• Canny
• cornerHarris
• cornerMinEigenVal
• cornerSubPix
• goodFeaturesToTrack
• HoughCircles
• HoughLines
• HoughLinesP
• preCornerDetect

Object Detection

• matchTemplate