Video and Image Processing Blockset™   Blocks — Alphabetical List
  

Block Reference

Click for Alphabetical List Alphabetical List
Analysis & EnhancementAnalyze or enhance images or video
ConversionsPerform conversion operations such as color space conversion
FilteringFilter images or video
Geometric TransformationsManipulate size, shape, and orientation of images or video
Morphological OperationsPerform morphological operations such as erosion and dilation
SinksExport or display images or video
SourcesImport images or video into Simulink
StatisticsPerform statistical operations on images or video
Text & GraphicsAnnotate images or video
TransformsPerform transform operations such as 2-D FFT and 2-D DCT
UtilitiesPerform processing operations such as image padding and block processing

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Analysis & Enhancement

Block MatchingEstimate motion between images or video frames
Contrast AdjustmentAdjust image contrast by linearly scaling pixel values
Corner DetectionCalculate corner metric matrix and find corners in images
DeinterlacingRemove motion artifacts by deinterlacing input video signal
Edge DetectionFind edges of objects in images using Sobel, Prewitt, Roberts, or Canny method
Histogram EqualizationEnhance contrast of images using histogram equalization
Median FilterPerform 2-D median filtering
Optical FlowEstimate object velocities
SADPerform 2-D sum of absolute differences (SAD)
Trace BoundariesTrace object boundaries in binary images

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Conversions

AutothresholdConvert intensity image to binary image
Chroma ResamplingDownsample or upsample chrominance components of images
Color Space ConversionConvert color information between color spaces
DemosaicDemosaic Bayer's format images
Gamma CorrectionApply or remove gamma correction from images or video streams
Image ComplementCompute complement of pixel values in binary, intensity, or RGB images
Image Data Type ConversionConvert and scale input image to specified output data type

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Filtering

2-D ConvolutionCompute 2-D discrete convolution of two input matrices
2-D FIR FilterPerform 2-D FIR filtering on input matrix
Kalman FilterPredict or estimate states of dynamic systems
Median FilterPerform 2-D median filtering

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Geometric Transformations

Estimate Geometric TransformationCompute transformation matrix between greatest number of point pairs of two images
Projective TransformationTransform quadrilateral into another quadrilateral
ResizeEnlarge or shrink image sizes
RotateRotate image by specified angle
ShearShift rows or columns of image by linearly varying offset
TranslateTranslate image in 2-D plane using displacement vector

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Morphological Operations

Bottom-hatPerform bottom-hat filtering on intensity or binary images
ClosingPerform morphological closing on binary or intensity images
DilationFind local maxima in binary or intensity images
ErosionFind local minima in binary or intensity images
LabelLabel connected components in binary images
OpeningPerform morphological opening on binary or intensity images
Top-hatPerform top-hat filtering on intensity or binary images

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Sinks

Frame Rate DisplayCalculate average update rate of input signal
To Multimedia FileWrite video frames and audio samples to multimedia file
To Video DisplaySend video data to display devices
Video To WorkspaceExport video signal to MATLAB® workspace
Video ViewerDisplay binary, intensity, or RGB images or video streams
Write AVI File (Obsolete)Write video frames to uncompressed AVI file
Write Binary FileWrite binary video data to files

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Sources

From Multimedia FileRead video frames and audio samples from compressed multimedia file
Image From FileImport image from image file
Image From WorkspaceImport image from MATLAB® workspace
Read Binary FileRead binary video data from files
Video From WorkspaceImport video signal from MATLAB® workspace

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Statistics

2-D AutocorrelationCompute 2-D autocorrelation of input matrix
2-D CorrelationCompute 2-D cross-correlation of two input matrices
2-D Histogram (Obsolete)Generate histogram of each input matrix
2-D Mean (Obsolete)Find mean value of each input matrix
2-D Median (Obsolete)Find median value of each input matrix
2-D Standard Deviation (Obsolete)Find standard deviation of each input matrix
2-D Variance (Obsolete)Compute variance of each input matrix
Blob AnalysisCompute statistical values for labeled regions
Find Local MaximaFind local maxima in matrices
HistogramGenerate histogram of each input matrix
MaximumFind maximum values in input or sequence of inputs
MeanFind mean value of each input matrix
MedianFind median value of each input matrix
MinimumFind minimum values in input or sequence of inputs
PSNRCompute peak signal-to-noise ratio (PSNR) between images
Standard DeviationFind standard deviation of each input matrix
VarianceCompute variance of input or sequence of inputs

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Text & Graphics

CompositingCombine pixel values of two images, overlay one image over another, or highlight selected pixels
Draw MarkersDraw markers by embedding predefined shapes on output image
Draw ShapesDraw rectangles, lines, polygons, or circles on images
Insert TextDraw text on image or video stream

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Transforms

2-D DCTCompute 2-D discrete cosine transform (DCT)
2-D FFTCompute 2-D FFT of input
2-D IDCTCompute 2-D inverse discrete cosine transform (IDCT)
2-D IFFTCompute 2-D IFFT of input
Gaussian PyramidPerform Gaussian pyramid decomposition
Hough LinesFind Cartesian coordinates of lines described by rho and theta pairs
Hough TransformFind lines in images

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Utilities

Block ProcessingRepeat user-specified operation on submatrices of input matrix
Image PadPad signal along its rows, columns, or both
Variable SelectorSpecify subset of rows or columns from input
  

   Blocks — Alphabetical ListBlocks — Alphabetical List

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