Algorithms

Declaration of VPI's algorithms. More...

Modules
	AprilTags
	Detect AprilTags (https://april.eecs.umich.edu/software/apriltag) in an image.
	Background Subtractor
	Separate foreground and background from video.
	Bilateral Filter
	Runs a generic 2D bilateral filter over the input image.
	Box Filter
	Runs a generic 2D box filter over the input image.
	Brute Force Matcher
	Runs a brute force matcher algorithm on descriptors.
	Canny Edge Detector
	Runs the canny edge detector algorithm over the input image.
	Convert Image Format
	Converts the image contents to the desired format, with optional pixel value scaling and offset.
	Convolution
	Convolves an image with a 2D kernel.
	Copy
	Copy the contents from input containers to output containers.
	Crop Scaler
	Crops rectangular regions from the input image, rescale them to uniform dimensions and writes them in a single image to be used in further batched image processing.
	DCF Tracker
	Tracks object bounding boxes on a sequence of frames using the Discriminative Correlation Filter (DCF) algorithm.
	Dynamic Remap
	Dynamically remaps pixels from an input image to an output image via a user-provided map image.
	Equalize Image Histogram
	Equalize image histogram for the input image.
	FAST Corners
	Detect FAST corners in an image, usually used in keypoint tracking.
	Fast Fourier Transform
	Operations that applies the Fast Fourier Transform and its inverse to 2D images.
	Gaussian Filter
	Runs a generic 2D Gaussian filter over the input image.
	Gaussian Pyramid Generator
	Creates a Gaussian pyramid from the input image.
	Harris Corners
	Detect Harris keypoints in an image, usually used in keypoint tracking.
	Image Histogram
	Computes image histogram from the input image.
	Image Flip
	Flips a 2D image either horizontally, vertically or both.
	Image Statistics
	Returns various image statistics of the input image.
	KLT Feature Tracker
	Runs KLT Feature tracking on a sequence of frames.
	Laplacian Pyramid Generator
	Creates a Laplacian pyramid from the input image.
	Median Filter
	Runs a 2D median filter over the input image.
	MinMaxLoc
	Find in an image the minimum and maximum value locations.
	Mix Channels
	Mix channels from one or more input image channels to one or more output image channels.
	Erode
	Filter an image with a 2D binary kernel composed with the erode morphological operation.
	Dilate
	Filter an image with a 2D binary kernel composed with the dilate morphological operation.
	Dense Optical Flow
	Algorithm used to estimate the motion vectors from previous image to current image.
	Pyramidal LK Optical Flow
	Algorithm used to track points from one frame to the next.
	ORB features
	Runs the ORB algorithm over the input image to detect features and extract descriptors.
	Perspective Warp
	Applies a perspective warp on an image.
	Recursive Gaussian Filter
	Runs a generic 2D Gaussian filter over the input image.
	Remap
	Remaps the input image, effectively warping it using a user-provided mapping.
	Rescale
	Changes the dimensions of the input image while stretching/squeezing it.
	Stereo Disparity Estimator
	Estimates disparity from a stereo pair.
	Template Matching Algorithm
	Runs the template matching algorithm with template image over the searched image.
	Temporal Noise Reduction
	Performs temporal noise reduction in a sequence of images.
	Transform Estimator
	Estimate the transform between source and target keypoints.
	Color Names Features Extractor
	Extracts the Color Names features of the input image.
	Histogram of Oriented Gradients
	Extracts Histogram of Oriented Gradients features from input image.
	User-Defined Function
	Submits a user-defined function to be executed on the stream.
	Lens Distortion Correction

Detailed Description

Declaration of VPI's algorithms.

These are all algorithms VPI provides. It also declares functions that handle algorithm payloads.