All functions

Image

An S4 Class Containing an OpenCV Image

Rvision

Rvision: A basic (for now) computer vision library for R.

RvisionAck

Image and video samples

Stream

An S4 Class Containing an OpenCV Stream

Video

An S4 Class Containing an OpenCV Video

VideoWriter

An S4 Class Containing an OpenCV Video Writer

absdiff()

Absolute Difference Between Two Images

adaptiveThreshold()

Adaptive Thresholding

addWeighted()

Weighted Sum of Two Images

api()

API of a Video Writer

as.array(<Rcpp_Image>)

Convert Image to Array or Matrix

bilateralFilter()

Edge-Preserving Noise Reduction with a Bilateral Filter

bitdepth()

The Bit Depth of an Image

blur()

Blurs an Image Using a Normalized Box Filter

border()

Add Border to Image

boxFilter()

Blurs an Image Using a Box Filter

changeBitDepth()

Convert image bit depth

changeColorSpace()

Convert image between colorspaces

click()

Detect Mouse Click on Image Display

cloneImage()

Make a copy of an Image object

codec()

Codec of a Video

col2bgr()

Color to BGR Conversion

colorspace()

The Color Space of an Image

computeECC()

Enhanced Correlation Coefficient Value

connectedComponents()

Find Connected Components in a binary Image

destroyDisplay() destroyAllDisplays()

Destroy Image Display

dim(<Rcpp_Image>)

Dimensions of an Image

dim(<Rcpp_Stream>)

Dimensions of a Stream

dim(<Rcpp_Video>)

Dimensions of a Video

dim(<Rcpp_VideoWriter>)

Dimensions of a Video Writer

display()

Display Image Object

distanceTransform()

Distance Transform

drawArrow()

Draw Arrows on an Image

drawCircle()

Draw Circles on an Image

drawEllipse()

Draw Ellipses on an Image

drawLine()

Draw Lines on an Image

drawRectangle()

Draw Rectangles on an Image

drawText()

Draw Text on an Image

farneback()

Optical Flow Using Farneback's Algorithm

fillPoly()

Fill Polygon with Color in Image

filter2D()

Image Convolution with Kernel

findContours()

Find Contours in a Binary Image

findNonZero()

Find Non-Zero Pixels in an Image

findTransformECC()

Enhanced Correlation Coefficient-based Geometric Transform

fps()

Framerate of a Video

frame()

Video Reader Position

gaussianBlur()

Blurs an Image Using a Gaussian Filter

getRotationMatrix2D()

Affine Matrix of 2D Rotation

getTextSize()

Calculate the Height and Width of a Text String

image()

Create an Object of Class Image

inpaint()

Reconstruct Image Region from Region Neighborhood

invert()

Invert Colors

isBlob()

Test for a Blob Object

isImage()

Test for an Image Object

isStream()

Test for a Stream object

isVideo()

Test for a Video object

isVideoWriter()

Test for a VideoWriter object

laplacian()

Calculates the Laplacian of an Image

matchTemplate()

Template Matching

mean()

Mean Generic for additional arguments

medianBlur()

Blurs an Image Using a Median Filter

merge()

Merge Separate Channels into an Image

min(<Rcpp_Image>) max(<Rcpp_Image>) range(<Rcpp_Image>)

Maxima and Minima of an Image

minMaxLoc()

Coordinates of the Maxima and Minima of an Image

morph()

Morphological Operations

newDisplay()

Open New Image Display

nrow.Rcpp_Image() ncol.Rcpp_Image() nchan()

The Number of Rows/Columns/Channels of an Image

plot(<Rcpp_Image>)

Plot Rvision Images

plot(<OF_array>)

Plot Optical Flow Arrays

plot(<blob>)

Plot Blobs

readFrame()

Read Specific Video Frame

readMulti()

Read a Multi-Page Image

readNext()

Read Next of an Object Frame

release()

Release Object from Memory

resize()

Resize an Image

rotateScale()

Image Rotation and Scaling

scharr()

Calculates an Image Derivatives Using a Scharr Operator

selectROI()

Select a Region of Interest in an Image

sepFilter2D()

Image Filtering with a Separable Linear Filter

setProp() getProp()

Set/Get Video Properties

simpleBlobDetector()

Simple Blob Detector

sobel()

Calculates an Image Derivatives Using an Extended Sobel Operator

spatialGradient()

First Order Derivatives of an Image with the Sobel Operator

split()

Split an Image into Separate Channels

sqrBoxFilter()

Blurs an Image Using a Square Box Filter

stream()

Create an Object of Class Stream

nrow.Rcpp_Stream() ncol.Rcpp_Stream()

The Number of Rows/Columns of a Stream

`[`(<Rcpp_Image>) `[<-`(<Rcpp_Image>)

Extract or Replace Parts of an Image

subImage()

Extract Subimage

sum()

Sum Generic for additional arguments

timelapse()

Make Timelapse from Stream Object

video()

Create an Object of Class Video

videoWriter()

Create an object of class VideoWriter

nrow.Rcpp_Video() ncol.Rcpp_Video() nframes()

The Number of Rows/Columns/Frames of a Video

nrow.Rcpp_VideoWriter() ncol.Rcpp_VideoWriter()

The Number of Rows/Columns of a Video Writer

warpAffine()

Affine Transformation

warpPerspective()

Perspective Transformation

write.Image()

Image Output

writeFrame()

Write Frame to Output Video

writerOuput()

Output File of a Video Writer