Image

Icon	Name	Description / Applications
Image Basics
	ClearImage	Sets image pixels in ROI to the specified value.
	CopyImageData	Creates an image copy with the same size and pixel format.
	CopyPixels	Copies pixels from one image to another.
	EmptyImage	Creates an image filled with one color. Most typically used to prepare a background for image drawing tools.
	FillImage	Fills the input image with one color.
	GetImageColumn	Extracts an array of pixel values from a single column of an image.
	GetImageData	Extracts the image content (raw pixel data) as a binary buffer.
	GetImagePixel	Returns a single pixel of an image.
	GetImagePixel_Interpolated	Returns an interpolated single pixel of an image. Sub-pixel sampling of an image.
	GetImageRow	Extracts an array of pixel values from a single row of an image.
	GetMultipleImagePixelValues_Safe	Returns an array of pixel values at specified locations; the image range is checked.
	ImageBox	Returns a box corresponding to the dimensions of an image.
	ImageCharacteristicPoint	Returns one of the 9 characteristic points of an image (corners or mid-points).
	ImageToMatrix	Converts a single-channel image to a matrix.
	JoinProfilesIntoImage	Creates an image by joining an array of 1D profiles into consecutive image rows. Usually used for merging 3D profiles into a depth image.
	JoinProfilesIntoImage_OfSeries	Creates an image by joining 1D profiles, which appear in consecutive iterations. Usually used for merging 3D profiles into a depth image.
	LoadImageObject	Loads serialized Image object from AVDATA file.
	MakeImage	Converts a pixel array to a single-channel image.
	MatrixToImage	Converts a matrix to a single-channel real image.
	RealignImagePitch	Creates a new image with a standard pitch alignment. Can be used to normalize an image created with a non-standard third-party camera or framegrabber.
	SaveImageObject	Saves serialized Image object as AVDATA file.
	SetImageColumn	Sets pixel values in a single entire column of an image. Allows for creating images from calculated real values. It is significantly slower than SetImageRow.
	SetImagePixel	Sets a pixel of an image to the selected value.
	SetImagePixels	Sets multiple pixels of an image to the selected value (all the pixels get the same value).
	SetImageRow	Sets pixel values in a single entire row of an image. Allows for creating images from calculated real values.
	SetMultipleImagePixels	Sets pixels of an image to the selected values (each pixel gets another value).
	SkipEmptyImage	If the input image contains at least one pixel, then it is copied to the output; otherwise Nil is returned. Secures against domain errors caused by empty images.
	TestImage	Returns a sample image. Makes it possible to quickly present results of various image processing filters.
Image Color Spaces
Icon	Name	Description / Applications
	HsvToRgb	Converts color space from Hue-Saturation-Value to Red-Green-Blue.
	RgbToHsv	Converts color space from Red-Green-Blue to Hue-Saturation-Value. Color analysis is easier in the HSV color space than in RGB.
Image Combinators
Icon	Name	Description / Applications
	AddImages	Adds two images pixel by pixel.
	AddImages_OfArray	Adds images of an array pixel by pixel.
	AddImages_OfLoop	Adds images appearing in consecutive iterations pixel by pixel.
	AverageImages	Averages two images pixel by pixel.
	AverageImages_OfArray	Averages images from an array pixel by pixel.
	AverageImages_OfLoop	Averages images appearing in consecutive iterations pixel by pixel.
	BlendImages	Computes weighted sum pixel by pixel.
	ComposeImages	Takes pixels from the first image within the specified region and from the other one elsewhere.
	DifferenceImage	Computes the non-negative distances between corresponding pixel values. Useful for things like comparing an image against a template or for detecting differences between consecutive video frames.
	DifferenceImage_Shifted	Computes the non-negative distances between corresponding pixel values. Useful for things like comparing an image against a template or for detecting differences between consecutive video frames.
	DivideImages	Divides two images pixel by pixel. Can be used for flat field correction.
	LerpImages	Interpolates two images linearly pixel by pixel.
	LerpImages_ByImage	Interpolates two images linearly pixel by pixel according to another image values.
	MaximumImage	Creates an image from the higher pixel values of each corresponding pair.
	MaximumImage_OfArray	Computes the maximum of images of an array pixel by pixel.
	MaximumImage_OfLoop	Computes the maximum of images appearing in consecutive iterations pixel by pixel.
	MedianImages_OfArray	Compute median value for each pixel of images from an array.
	MinimumImage	Creates an image from the lower pixel values of each corresponding pair.
	MinimumImage_OfArray	Computes the minimum of images of an array pixel by pixel.
	MinimumImage_OfLoop	Computes the minimum of images appearing in consecutive iterations pixel by pixel.
	MultiplyImages	Multiplies two images pixel by pixel.
	MultiplyImages_OfArray	Multiplies images of an array pixel by pixel.
	MultiplyImages_OfLoop	Multiplies images appearing in consecutive iterations pixel by pixel.
	NthImage_OfArray	For each pixel location, get value of n-th (increasing) pixel among input images.
	RollingAverageImages_OfArray	Averages images appearing in an array pixel by pixel using exponential rolling average.
	RollingAverageImages_OfLoop	Averages images appearing in consecutive iterations pixel by pixel using exponential rolling average.
	SubtractImages	Subtracts two images pixel by pixel. The result is signed.
Image Conversions
Icon	Name	Description / Applications
	AddChannels	Creates a monochromatic image by summing the values of the input image channels.
	AddChannels_Saturation	Creates a monochromatic image by summing the values of the input image channels with saturation.
	AppendImageChannel	Appends a single valued channel to the input image.
	AverageChannels	Creates a monochromatic image by averaging the input image channels.
	AverageChannels_121	Creates a monochromatic image by averaging the input image channels. Conversion to mono which is more consistent with human perception (our eyes are more sensitive to green).
	AverageChannels_Weighted	Creates a monochromatic image from weighted averages of the input image channels.
	ConvertPixelType	Changes the type of pixel components.
	ConvertToMultichannel	Creates a multichannel image from a monochromatic one by replicating its channel.
	MergeChannels	Creates a multichannel image from several monochromatic ones.
	MixChannels	Calculates a linear combination of image channels.
	ReverseChannels	Reverses the order of channels in an image. E.g. when one has an RGB image, but needs to convert to BGR.
	SelectChannel	Creates an image from a single channel of the input image.
	SplitChannels	Creates several monochromatic images from individual channels of the input image.
	SplitChannels_OrNil	Creates several monochromatic images from individual channels of the input image and sets Nil for channels that are not present.
Image Drawing
Icon	Name	Description / Applications
	DrawArc	Draws an arc on an image.
	DrawBox	Draws a box on an image.
	DrawCircle	Draws a circle on an image.
	DrawCoordinateSystem	Draws a pair of arrows representing a coordinate system on an image.
	DrawCrosshair	Draws a crosshair on an image.
	DrawDimensionLine	Draws a dimension line on an image.
	DrawEllipse	Draws an ellipse on an image.
	DrawGridImage	Draws an image as a tile on an image considered to be a grid of tiles.
	DrawImage	Draws an image on another one.
	DrawLine	Draws a line on an image.
	DrawPath	Draws a path on an image.
	DrawPoint	Draws a point on an image.
	DrawRectangle	Draws a rectangle on an image.
	DrawRegion	Draws a region on an image.
	DrawSegment	Draws a segment on an image.
	DrawShapeRegion	Draws a shape region on an image.
	DrawString	Draws a string on an image.
	DrawVector	Draws a vector at an associated initial point on an image.
	MakeHeatmap	Creates a new Heatmap object.
	VisualizeHeatmap	Colorizes heat-map and blends it with background image.
	VisualizeHeatmap_Old	Colorizes a heat-map and blends it with a background image.
Image Enhancement
Icon	Name	Description / Applications
	AutoAdjustColors	Adjusts image colors by stretching each channel separately.
	EqualizeImageHistogram	Maps image pixels to new values to achieve uniform distribution of intensities in the range (0, 255).
	NormalizeImage	Rescales an image linearly, so that its minimum becomes inNewMinimum and the maximum of the remaining pixels becomes inNewMaximum. Aims at better using the image's dynamic range to represent an interesting subset of pixel values.
	SharpenImage	Enhances contrast of an image so that it appears sharper. Use this filter only to improve human perception, not to preprocess an image for analysis.
Image Features
Icon	Name	Description / Applications
	ImageCenter	Returns the geometrical center of an image.
	ImageMassCenter	Computes a point with coordinates equal to image mass center in brightness scale.
	ImageMoment	Computes the selected moment of an image in regular and normalized (divided by sum of pixel values) variant.
	ImageOrientation	Computes the orientation of an image using image moments. The result range is from 0.0 to 180.0.
	ImagePixels	Returns an array of pixels from the input image.
	ImagePixelValues	Returns an array of pixel values from the input image.
	ImageProjection	Computes the average (or other statistic) for each image row or column and then merges the obtained results into a profile.
Image IO
Icon	Name	Description / Applications
	FillImageBuffer	Fills image buffer with provided data.
	FillImagePreviewBuffer	Fills image buffer with provided data.
	EnumerateImages	Scans a disk directory for image files and then returns the images one by one in consecutive iterations sorted according to the specified order. Emulates image acquisition with images stored on disk.
	EnumerateImages_Random	Scans a disk directory for image files and then returns the images one by one in consecutive iterations sorted randomly. Emulates image acquisition with images stored on disk.
	GetAvailableVideoCompressors	Lists FourCC names of available video compressors.
	GrabImage_FromFiles	Simulates capturing a frame from a camera. Can be used as EnumerateImages, but its state is global in a program - does not reset when some task is finished.
	GrabImage_FromFiles_ResetState	Resets the global state of GrabImage_FromFiles filter.
	LoadImage	Loads a single image from a file.
	LoadImageFormat	Loads a single image format from a file without loading all image data.
	LoadImageFromBuffer	Loads a single image from a file stored in memory. Use this filter when you received an image file through I/O communication, e.g. through a TcpIp connection.
	LoadMultiplePagesTiffImage	Loads a image array from a tiff file.
	OpenInputVideoStream	Opens and creates a video stream from a file.
	OpenOutputVideoStream	Creates a video stream which will be saved to a selected file.
	ReadVideoStream	Acquires a frame from a previously opened video stream.
	SaveImage	Saves an image to a file.
	SaveImageToBuffer	Saves an image to a file stored in ByteBuffer. Use this filter if you want to send image file through I/O communication, e.g. through a TcpIp connection.
	SaveImageToJpeg	Saves an image to a JPEG file.
	SaveImageToJpeg_Asynchronous	Saves an image to a JPEG file in the background thread.
	SaveImageToPng	Saves an image to a PNG file.
	SaveImageToPng_Asynchronous	Saves an image to a PNG file in the background thread.
	SaveImageToTiff	Saves an image to a TIFF file.
	SaveImageToTiff_Asynchronous	Saves an image to a TIFF file in the background thread.
	SaveImage_Asynchronous	Saves an image to a file in the background thread.
	WriteVideoStream	Writes an image to a previously opened video stream.
	DecodeVideo	Captures an image from video file with using FFmpeg library.
Image Local Transforms
Icon	Name	Description / Applications
	BottomHatImage	Performs a morphological black top hat (bottom hat) operation on a image using a predefined kernel.
	BottomHatImage_AnyKernel	Performs a morphological black top hat (bottom hat) operation on a image using an arbitrary kernel.
	BottomHatImage_Mask	Performs a morphological black top hat (bottom hat) operation on a image using a predefined mask.
	CloseImage	Removes small dark structures from an image (or fills in bright ones) by applying consecutive dilation and erosion. E.g. removal of the "pepper" component of salt-and-pepper noise.
	CloseImage_AnyKernel	Removes small dark structures from an image (or fills in bright ones) by applying consecutive dilation and erosion. E.g. removal of the "pepper" component of salt-and-pepper noise.
	CloseImage_Mask	Removes small dark structures from an image (or fills in bright ones) by applying consecutive dilation and erosion. E.g. removal of the "pepper" component of salt-and-pepper noise.
	ConvolveImage	Computes a convolution of the input image with a user-specified mask. Non-standard local transforms defined by the user.
	DilateImage	Replaces each pixel with the maximum of pixels within a kernel. Thickens bright features in an images and thins dark ones.
	DilateImage_Mask	Replaces each pixel with the maximum of pixels within a small rectangular kernel.
	ErodeImage	Replaces each pixel with the minimum of pixels within a kernel. Thins bright features in an image and thickens dark ones.
	ErodeImage_Mask	Replaces each pixel with the minimum of pixels within a small rectangular kernel.
	GradientImage	Computes a gradient image with smoothing operator of any size. The output pixels are signed.
	GradientImage_Mask	Computes a gradient image with a Sobel or Prewitt operator.
	GradientMagnitudeImage	Measures the strength of gradient at each pixel location.
	OpenImage	Removes small bright structures from an image (or fills in dark ones) by applying consecutive erosion and dilation. E.g. removal of the "salt" component of salt-and-pepper noise.
	OpenImage_AnyKernel	Removes small bright structures from an image (or fills in dark ones) by applying consecutive erosion and dilation. E.g. removal of the "salt" component of salt-and-pepper noise.
	OpenImage_Mask	Removes small bright structures from an image (or fills in dark ones) by applying consecutive erosion and dilation. E.g. removal of the "salt" component of salt-and-pepper noise.
	SmoothImage_Deriche	Smooths an image using Deriche filter. Approximation of the gaussian filter, which can be faster for large kernels.
	SmoothImage_Gauss	Smooths an image using a gaussian kernel. Removal of gaussian noise from images.
	SmoothImage_Gauss_Mask	Smooths an image using a predefined gaussian kernel. Removal of gaussian noise from images (fast).
	SmoothImage_Mean	Smooths an image by averaging pixels within a rectangular kernel. Usually used for computing features related to local image "windows". Can be also used for noise removal, but Gauss is superior here.
	SmoothImage_Mean_Mask	Smooths an image by averaging pixels within a small rectangular kernel. This is a faster alternative to SmoothImage_Mean when the kernel is very small.
	SmoothImage_Median	Replaces each pixel with the median of pixels within a kernel. Edge-preserving noise removal (but slow).
	SmoothImage_Median_Mask	Replaces each pixel with the median of pixels within a 3x3 rectangular kernel (faster).
	SmoothImage_Middle	Replaces each pixel with the average of maximum and minimum calculated within a kernel. Useful for calculating per-pixel threshold values for image binarization.
	SmoothImage_Quantile	Replaces each pixel with a quantile of pixels within a kernel. Edge-preserving noise removal (but slow).
	SmoothRegion_Mean	Smooths an region by averaging pixels within a rectangular kernel. Usually used for computing features related to local image "windows". Can be also used for noise removal, but Gauss is superior here.
	TopHatImage	Performs a morphological white top hat operation on a image using a predefined kernel.
	TopHatImage_AnyKernel	Performs a morphological white top hat operation on a image using an arbitrary kernel.
	TopHatImage_Mask	Performs a morphological white top hat operation on a image using a predefined mask.
Image Pixel Statistics
Icon	Name	Description / Applications
	ImageAverage	Computes the average of the image pixel values.
	ImageAverageHSx	Computes the average of the HSV, HSL or HSI image pixel values.
	ImageMaximum	Finds the location and the value of the brightest pixel.
	ImageMinimum	Finds the location and the value of the darkest pixel.
	ImageStatistics	Computes various statistics of the image pixel values.
	ImageSum	Computes the sum of the image pixel values.
Image Point Transforms
Icon	Name	Description / Applications
	AbsoluteValueImage	Transforms pixel values to their absolute values pixel by pixel.
	AddNoiseToImage	Adds random noise to the image.
	AddToImage	Adds a scalar value to each pixel.
	ClipPixels	Sets pixels below the low value to the low value and above the high value to the high value.
	ColorizeImage	Shows a monochromatic image in false colors.
	CorrectGamma	Performs gamma correction. Image enhancement for human perception. For computer vision consider LogarithmImage.
	DivideImage	Divides each pixel by a scalar value.
	InvertImage	Applies numeric inversion (1/x) of the pixel values.
	LogarithmImage	Computes a natural logarithm of each pixel. Transforms an image in such a way that a quotient on the input image becomes a difference on the output image. This can be useful for dealing with variable illumination.
	LUTTransformImage	Changes pixel values for data stored in array.
	MultiplyImage	Multiplies each pixel by a scalar value.
	NegateImage	Reverts the pixel value range (unsigned) or applies numeric negation (signed).
	PowerImage	Exponentiates each pixel to the given power.
	ReplacePixels	Substitutes pixels having the specified value with a new value.
	ResaturateImage	Sets pixels below the low value to minimum, above the high value to maximum, and interpolates the rest.
	RescalePixels	Applies linear transformation to pixel values.
	RescalePixels_FixedRange	Transforms pixels value from given range into new one.
	SquareImage	Raises pixel values to the second power pixel by pixel.
	SquareRootImage	Transforms pixel values to their square roots pixel by pixel.
	SubtractFromImage	Subtracts a scalar value from each pixel.
Image Relations
Icon	Name	Description / Applications
	TestBoxInImage	Tests whether a box is contained in the dimensions of an image.
	TestImageEqualTo	Tests whether two images equal.
	TestLocationInBox	Tests whether a location is contained in the dimensions of a box.
	TestLocationInImage	Tests whether a location is contained in the dimensions of an image.
	TestPointInImage	Tests whether a point is contained in the dimensions of an image.
	TestRectangleInImage	Tests whether a rectangle is contained in the dimensions of an image.
Image Spatial Transforms
Icon	Name	Description / Applications
	CropImage	Creates an image from a box-shaped fragment of the input image (with margins if requested). Reduction of the amount of image data to be stored in memory.
	CropImageToRectangle	Creates an image from a rectangular fragment of another image (with black margins if requested). Usually used for creating images of individual objects, e.g. after Template Matching.
	JoinImages	Creates a single image by glueing together the two input images in horizontal or vertical direction.
	JoinImages_OfArray	Creates a single image by glueing together many input images in horizontal or vertical direction.
	JoinImages_OfSeries	Creates a single image by glueing together a series of input images in horizontal or vertical direction. Joining images from a line-scan camera, which produces too few lines at a time.
	MirrorImage	Reverses the order of the input image columns or rows depending on inMirrorDirection value.
	ResizeImage	Enlarges or shrinks an image to new dimensions.
	ResizeImage_FixedAspectRatio	Changes one dimension of the image to a desired length while the other dimension is set to a length such that the aspect ration of the image is maintained.
	ResizeImage_Relative	Resizes an image by a factor along each axis.
	RotateImage	Rotates an image clockwise.
	ShearImage	Computes a leant image (shifts the rows). Image preprocessing when there are slanted objects.
	ShrinkImageNTimes	Shrinks an image by a natural factor along each axis.
	TransformImage	Transforms an image by the provided transformation matrix.
	TranslateImage	Translates an image by a vector, without changing its dimensions. E.g. camera shaking reduction.
	TranslatePixels	Moves the pixels of the input image by the vectors specified with inVectorImage.
	TransposeImage	Flips and rotates an image so that columns are exchanged with rows. Useful when operations on image columns should be replaced with operations on image rows, which are much faster due to the cache memory.
	TrimImageToRegion	Trims an image to the area of the specified region.
	UncropImage	Inverse of CropImage.
Image Thresholding
Icon	Name	Description / Applications
	ThresholdImage	Transforms each pixel value to maximum or minimum depending on whether they belong to the specified range. Image binarization when the illumination is constant and uniform.
	ThresholdImage_Dynamic	Thresholds an image relatively to some value calculated in a local rectangular neighbourhood. Image binarization when the illumination is uneven.
	ThresholdImage_HSx	Transforms each pixel value to minimum or maximum depending on whether it belongs to specified region in the HSV, HSL or HSI color space. Color analysis.
	ThresholdImage_RGB	Transforms each pixel value to minimum or maximum depending on whether it belongs to the specified range for each individual pixel component. Multi-channel thresholding.