OpenCV Python Documentation

Functions

• cv2.AdaptiveManifoldFilter.filter
• cv2.BRISK
• cv2.BRISK.compute
• cv2.BRISK.detect
• cv2.BRISK.detectAndCompute
• cv2.BackgroundSubtractor.apply
• cv2.CamShift
• cv2.Canny
• cv2.CascadeClassifier
• cv2.CascadeClassifier.detectMultiScale
• cv2.CascadeClassifier.detectMultiScale2
• cv2.CascadeClassifier.detectMultiScale3
• cv2.CascadeClassifier.empty
• cv2.CascadeClassifier.load
• cv2.DTFilter.filter
• cv2.DescriptorExtractor_create
• cv2.DescriptorExtractor_create.compute
• cv2.FeatureDetector_create.detect
• cv2.GaussianBlur
• cv2.GuidedFilter.filter
• cv2.HoughCircles
• cv2.HoughLines
• cv2.HoughLinesP
• cv2.HuMoments
• cv2.KalmanFilter
• cv2.KalmanFilter.correct
• cv2.KalmanFilter.predict
• cv2.KeyPoint
• cv2.KeyPoint_convert
• cv2.KeyPoint_overlap
• cv2.LUT
• cv2.Laplacian
• cv2.Mahalanobis
• cv2.ORB
• cv2.ORB.compute
• cv2.ORB.detect
• cv2.ORB.detectAndCompute
• cv2.PCABackProject
• cv2.PCACompute
• cv2.PCAProject
• cv2.RQDecomp3x3
• cv2.Rodrigues
• cv2.SIFT
• cv2.SIFT.compute
• cv2.SIFT.detect
• cv2.SIFT.detectAndCompute
• cv2.SURF
• cv2.SURF.compute
• cv2.SURF.detect
• cv2.SURF.detectAndCompute
• cv2.SVBackSubst
• cv2.SVDecomp
• cv2.Scharr
• cv2.Sobel
• cv2.StereoBM.compute
• cv2.SuperpixelSEEDS.createSuperpixelSEEDS
• cv2.SuperpixelSEEDS.getLabelContourMask
• cv2.SuperpixelSEEDS.getLabels
• cv2.SuperpixelSEEDS.getNumberOfSuperpixels
• cv2.SuperpixelSEEDS.iterate
• cv2.VideoCapture
• cv2.VideoCapture.get
• cv2.VideoCapture.grab
• cv2.VideoCapture.isOpened
• cv2.VideoCapture.open
• cv2.VideoCapture.read
• cv2.VideoCapture.release
• cv2.VideoCapture.retrieve
• cv2.VideoCapture.set
• cv2.VideoWriter
• cv2.VideoWriter.isOpened
• cv2.VideoWriter.open
• cv2.VideoWriter.write
• cv2.VideoWriter_fourcc
• cv2.absdiff
• cv2.accumulate
• cv2.accumulateProduct
• cv2.accumulateSquare
• cv2.accumulateWeighted
• cv2.adaptiveThreshold
• cv2.add
• cv2.addWeighted
• cv2.amFilter
• cv2.approxPolyDP
• cv2.arcLength
• cv2.bilateralFilter
• cv2.bitwise_and
• cv2.bitwise_not
• cv2.bitwise_or
• cv2.bitwise_xor
• cv2.blur
• cv2.borderInterpolate
• cv2.boundingRect
• cv2.boxFilter
• cv2.boxPoints
• cv2.buildOpticalFlowPyramid
• cv2.calcBackProject
• cv2.calcCovarMatrix
• cv2.calcGlobalOrientation
• cv2.calcHist
• cv2.calcMotionGradient
• cv2.calcOpticalFlowFarneback
• cv2.calcOpticalFlowPyrLK
• cv2.calibrateCamera
• cv2.calibrationMatrixValues
• cv2.cartToPolar
• cv2.checkHardwareSupport
• cv2.checkRange
• cv2.circle
• cv2.clipLine
• cv2.compare
• cv2.compareHist
• cv2.completeSymm
• cv2.composeRT
• cv2.computeCorrespondEpilines
• cv2.contourArea
• cv2.convertMaps
• cv2.convertPointsFromHomogeneous
• cv2.convertPointsToHomogeneous
• cv2.convertScaleAbs
• cv2.convexHull
• cv2.convexityDefects
• cv2.copyMakeBorder
• cv2.cornerEigenValsAndVecs
• cv2.cornerHarris
• cv2.cornerMinEigenVal
• cv2.cornerSubPix
• cv2.correctMatches
• cv2.countNonZero
• cv2.createAMFilter
• cv2.createBackgroundSubtractorGMG
• cv2.createBackgroundSubtractorMOG
• cv2.createDTFilter
• cv2.createGuidedFilter
• cv2.createLineSegmentDetector
• cv2.createLineSegmentDetector.compareSegments
• cv2.createLineSegmentDetector.detect
• cv2.createLineSegmentDetector.drawSegments
• cv2.createStereoBM
• cv2.createStereoSGBM
• cv2.createTrackbar
• cv2.cubeRoot
• cv2.cvtColor
• cv2.dct
• cv2.decomposeProjectionMatrix
• cv2.destroyAllWindows
• cv2.destroyWindow
• cv2.determinant
• cv2.dft
• cv2.dilate
• cv2.distanceTransform
• cv2.divide
• cv2.drawChessboardCorners
• cv2.drawContours
• cv2.drawKeypoints
• cv2.drawMatches
• cv2.drawMatchesKnn
• cv2.dtFilter
• cv2.eigen
• cv2.ellipse
• cv2.ellipse2Poly
• cv2.equalizeHist
• cv2.erode
• cv2.estimateAffine3D
• cv2.estimateRigidTransform
• cv2.exp
• cv2.fastAtan2
• cv2.fastNlMeansDenoising
• cv2.fastNlMeansDenoisingColored
• cv2.fastNlMeansDenoisingColoredMulti
• cv2.fastNlMeansDenoisingMulti
• cv2.fillConvexPoly
• cv2.fillPoly
• cv2.filter2D
• cv2.filterSpeckles
• cv2.findChessboardCorners
• cv2.findCirclesGrid
• cv2.findContours
• cv2.findFundamentalMat
• cv2.findHomography
• cv2.findTransformECC
• cv2.fitEllipse
• cv2.fitLine
• cv2.flip
• cv2.floodFill
• cv2.gemm
• cv2.getAffineTransform
• cv2.getCPUTickCount
• cv2.getDefaultNewCameraMatrix
• cv2.getDerivKernels
• cv2.getGaborKernel
• cv2.getGaussianKernel
• cv2.getOptimalDFTSize
• cv2.getOptimalNewCameraMatrix
• cv2.getPerspectiveTransform
• cv2.getRectSubPix
• cv2.getRotationMatrix2D
• cv2.getStructuringElement
• cv2.getTextSize
• cv2.getTickCount
• cv2.getTickFrequency
• cv2.getTrackbarPos
• cv2.getWindowProperty
• cv2.goodFeaturesToTrack
• cv2.grabCut
• cv2.groupRectangles
• cv2.guidedFilter
• cv2.idct
• cv2.idft
• cv2.imdecode
• cv2.imencode
• cv2.imread
• cv2.imshow
• cv2.imwrite
• cv2.inRange
• cv2.initCameraMatrix2D
• cv2.initUndistortRectifyMap
• cv2.inpaint
• cv2.integral
• cv2.integral2
• cv2.integral3
• cv2.invert
• cv2.invertAffineTransform
• cv2.isContourConvex
• cv2.jointBilateralFilter
• cv2.kmeans
• cv2.line
• cv2.log
• cv2.magnitude
• cv2.matMulDeriv
• cv2.matchShapes
• cv2.matchTemplate
• cv2.max
• cv2.mean
• cv2.meanShift
• cv2.meanStdDev
• cv2.medianBlur
• cv2.merge
• cv2.min
• cv2.minAreaRect
• cv2.minEnclosingCircle
• cv2.minEnclosingTriangle
• cv2.minMaxLoc
• cv2.mixChannels
• cv2.moments
• cv2.morphologyEx
• cv2.moveWindow
• cv2.mulSpectrums
• cv2.mulTransposed
• cv2.multiply
• cv2.namedWindow
• cv2.norm
• cv2.normalize
• cv2.perspectiveTransform
• cv2.phase
• cv2.pointPolygonTest
• cv2.polarToCart
• cv2.polylines
• cv2.pow
• cv2.preCornerDetect
• cv2.projectPoints
• cv2.putText
• cv2.pyrDown
• cv2.pyrMeanShiftFiltering
• cv2.pyrUp
• cv2.randShuffle
• cv2.randn
• cv2.randu
• cv2.rectangle
• cv2.reduce
• cv2.remap
• cv2.repeat
• cv2.reprojectImageTo3D
• cv2.resize
• cv2.resizeWindow
• cv2.rotatedRectangleIntersection
• cv2.scaleAdd
• cv2.segmentMotion
• cv2.sepFilter2D
• cv2.setIdentity
• cv2.setMouseCallback
• cv2.setTrackbarPos
• cv2.setUseOptimized
• cv2.setWindowProperty
• cv2.solve
• cv2.solveCubic
• cv2.solvePnP
• cv2.solvePnPRansac
• cv2.solvePoly
• cv2.sort
• cv2.sortIdx
• cv2.split
• cv2.sqrt
• cv2.stereoCalibrate
• cv2.stereoRectifyUncalibrated
• cv2.subtract
• cv2.sumElems
• cv2.threshold
• cv2.trace
• cv2.transform
• cv2.transpose
• cv2.triangulatePoints
• cv2.undistort
• cv2.updateMotionHistory
• cv2.useOptimized
• cv2.waitKey
• cv2.warpAffine
• cv2.warpPerspective
• cv2.watershed

Guides

• AKAZE and ORB planar tracking
• AKAZE local features matching
• Adding (blending) two images using OpenCV
• Adding a Trackbar to our applications!
• Adding borders to your images
• Affine Transformations
• Android Development with OpenCV
• Back Projection
• Basic Drawing
• Basic Thresholding Operations
• Camera calibration With OpenCV
• Camera calibration with square chessboard
• Canny Edge Detector
• Cascade Classifier
• Cascade Classifier Training
• Changing the contrast and brightness of an image!
• Convex Hull
• Creating Bounding boxes and circles for contours
• Creating Bounding rotated boxes and ellipses for contours
• Creating Widgets
• Creating a video with OpenCV
• Creating yor own corner detector
• Cross compilation for ARM based Linux systems
• Detecting corners location in subpixeles
• Detection of planar objects
• Discrete Fourier Transform
• Eroding and Dilating
• Feature Description
• Feature Detection
• Feature Matching with FLANN
• Features2D + Homography to find a known object
• Features2d
• File Input and Output using XML and YAML files
• Finding contours in your image
• General tutorials
• Harris corner detector
• High Dynamic Range Imaging
• HighGUI
• HighGUI
• Histogram Calculation
• Histogram Comparison
• Histogram Equalization
• Hough Circle Transform
• Hough Line Transform
• How to Use Background Subtraction Methods
• How to build applications with OpenCV inside the Microsoft Visual Studio
• How to scan images, lookup tables and time measurement with OpenCV
• Image Moments
• Image Pyramids
• Image Watch: viewing in-memory images in the Visual Studio debugger
• Installation in Linux
• Installation in Windows
• Installation in iOS
• Intel® IPP Asynchronous C/C++ library in OpenCV
• Interoperability with OpenCV 1
• Introduction into Android Development
• Introduction to Java Development
• Introduction to OpenCV
• Introduction to OpenCV Development with Clojure
• Introduction to Support Vector Machines
• Laplace Operator
• Launching Viz
• Load and Display an Image
• Load, Modify, and Save an Image
• Making your own linear filters!
• Mask operations on matrices
• Mat - The Basic Image Container
• More Morphology Transformations
• OpenCV Viz
• OpenCV iOS
• OpenCV iOS - Image Processing
• OpenCV iOS - Video Processing
• OpenCV iOS Hello
• OpenCV4Android SDK
• Operations with images
• Point Polygon Test
• Pose of a widget
• Random generator and text with OpenCV
• Reading Geospatial Raster files with GDAL
• Real Time pose estimation of a textured object
• Remapping
• Shi-Tomasi corner detector
• Similarity check (PNSR and SSIM) on the GPU
• Smoothing Images
• Sobel Derivatives
• Support Vector Machines for Non-Linearly Separable Data
• Template Matching
• Transformations
• Using OpenCV Java with Eclipse
• Using OpenCV with Eclipse (plugin CDT)
• Using OpenCV with gcc and CMake
• Video Input with OpenCV and similarity measurement
• calib3d module. Camera calibration and 3D reconstruction
• core module. The Core Functionality
• feature2d module. 2D Features framework
• gpu module. GPU-Accelerated Computer Vision
• highgui module. High Level GUI and Media
• imgproc module. Image Processing
• ml module. Machine Learning
• objdetect module. Object Detection
• photo module. Computational photography
• video module. Video analysis