API

Python interface to VisionCpp.

class visioncpp.AbsSub(*args)

Uses the sycl::fabs to return the difference.

class visioncpp.Add(*args)

This functor adds two pixels.

class visioncpp.AniDiff(*args)

This functor applies anisotropic diffusion for 3 channels.

class visioncpp.AniDiff_Grey(*args)

This functor applies anisotropic diffusion for one channel.

class visioncpp.BGRToRGB(parent)

This functor reorders channels BGR to RGB.

class visioncpp.Broadcast(*args)

This functor sets the pixel to the value passed in.

class visioncpp.Div(*args)

This functor divides two matrices element-wise.

class visioncpp.DownsampleAverage(parent)

Downsampling filter using average technique Other filters could be added for different numbers of channels.

class visioncpp.DownsampleClosest(parent)

Downsampling filter using closest technique.

class visioncpp.F32C3ToU8C3(parent)

This functor performs conversion from [0.0f, 1.0f] to [0, 255].

class visioncpp.Filter2D(parent, arg)

Applying the general convolution for 3 channel Image.

class visioncpp.Filter2D_One(parent, arg)

Applying the general convolution for 1 channel Image.

class visioncpp.FloatToF32C3(*args)

It replicates one channel to 3 channels.

class visioncpp.FloatToU8C1(*args)

It converts float to uchar converting [0.0f, 1.0f] to [0, 255].

class visioncpp.FloatToUChar(*args)

It converts float to uchar.

class visioncpp.GaussianBlur3x3(parent)

Applying the Gaussian blur 3x3.

class visioncpp.HSVToRGB(parent)

Functor converts HSV to color RGB.

class visioncpp.HSVToU8C3(parent)

Functor allows displaying HSV.

class visioncpp.Image(path)

An image node.

class visioncpp.Median(*args)

This functor implements a median filter.

class visioncpp.Merge2Chns(*args)

This functor merges 2 matrices into one matrix of 2 channels.

class visioncpp.Mul(*args)

This functor implements an element-wise matrix multiplication.

class visioncpp.NeighbourOpWithArg(parent, arg)

VisionCpp neighbour operation type.

class visioncpp.NeighbourOperation(parent)

VisionCpp neighbour operation type.

class visioncpp.OpWithArgs(*args)

VisionCpp pointwise operation type.

class visioncpp.Operation

VisionCpp base expression type.

class visioncpp.PointOperation(parent)

VisionCpp pointwise operation type.

class visioncpp.PowerOf2(*args)

This functor implements the power of 2 of one matrix.

class visioncpp.RGBToBGR(parent)

This functor reorders channels BGR to RGB.

class visioncpp.RGBToGREY(parent)

This functor performs RGB to GREY convertion.

Uses the following rule: GREY <- 0.299f * R + 0,587f * G + 0.114 * B.

class visioncpp.RGBToHSV(parent)

Functor converts RGB to HSV color space.

class visioncpp.Scale(*args)

Scales the pixel value of an image by a factor.

class visioncpp.ScaleChannelOne(*args)

This functor applies anisotropic diffusion for 3 channels.

class visioncpp.ScaleChannelTwo(*args)

This custom functor changes 2 channel by factor passed via float f.

class visioncpp.ScaleChannelZero(*args)

This functor applies anisotropic diffusion for 3 channels.

class visioncpp.SepFilterCol(parent, arg)

Separable filter for cols.

class visioncpp.SepFilterRow(parent, arg)

Separable filter for rows.

class visioncpp.SepGaussCol3(parent)

Applying the general convolution for 3 channel Image.

class visioncpp.SepGaussRow3(parent)

Applying the general convolution for 3 channel Image.

class visioncpp.Sub(*args)

This functor subtracts 2 images.

class visioncpp.TerminalOperation

VisionCpp terminal operation type.

parent = None

class visioncpp.Thresh(*args)

Implements a binary threshold.

class visioncpp.U8C1ToFloat(*args)

It converts uchar to float converting range [0, 255] to [0.0f, 1.0f].

class visioncpp.U8C3ToF32C3(parent)

This functor performs conversion from [0, 255] to [0.0f, 1.0f].

exception visioncpp.VisionCppException

VisionCpp module exception.

class visioncpp.Webcam(device_id=0)

A webcam input feed.

visioncpp.init(path=None)

Initialize VisionCpp module.

Arguments:

path (str, optional): Path to ComputeCpp directory.

Returns:

str: Path to ComputeCpp directory.

visioncpp.run(expression, devtype='cpu')

Execute a VisionCpp expression tree.

Arguments:

expression (Operation): The final node of the expression tree. devtype (string, optional): Execution device.

Returns:

object: Expression output.

class visioncpp.show(parent)

Node to display an image.

Additional submodules:

• visioncpp.backend
• visioncpp.cache
• visioncpp.codegen
• visioncpp.util