函数功能解释(英文版).docx

FunctionDescriptionImage Display and ExplorationiceInteractive Color Editor.rgbcubeDisplays an RGB cube on the MATLAB desktop.Image file I/Omovie2tifsCreates a multiframe TIFF file from a MATLAB movie.seq2tifs (DIPUM)Creates a multi-frame TIFF file from a MATLAB sequence.tifs2movieCreate a MATLAB movie from a multiframe TIFF file.tifs2seqCreate a MATLAB sequence from a multi-frame TIFF file.Geometric Transformationsimtransform22-D image transformation with fixed output location.pixeldupDuplicates pixels of an image in both directions.pointgridPoints arranged on a grid.reprotateRotate image repeatedly.vistformVisualization transformation effect on set of points.Image RegistrationvisregVisualize registered images.Pixel Values and StatisticslocalmeanComputes an array of local means.statmomentsComputes statistical central moments of image histogram.Image AnalysisbayesgaussBayes classifier for Gaussian patterns.bound2eightConvert 4-connected boundary to 8-connected boundary.bound2fourConvert 8-connected boundary to 4-connected boundary.bound2imConverts a boundary to an image.bsubsampSubsample a boundary.bwboundariesTrace region boundaries in binary image.colorgradComputes the vector gradient of an RGB image.colorsegPerforms segmentation of a color image.connectpolyConnects vertices of a polygon.cornerprocessProcesses the output of function cornermetric.diameterMeasure diameter and related properties of image regions.fchcodeComputes the Freeman chain code of a boundary.frdescpComputes Fourier descriptors.ifrdescpComputes inverse Fourier descriptors.im2minperpolyMinimum perimeter polygon.imstack2vectorsExtracts vectors from an image stack.invmomentsCompute invariant moments of image.localthreshLocal thresholding.mahalanobisComputes the Mahalanobis distance.movingthreshImage segmentation using a moving average threshold.otsuthreshOtsus optimum threshold given a histogram.polyanglesComputes internal polygon angles.principalcompsPrincipal-component vectors and related quantities.randvertexAdds random noise to the vertices of a polygon.regiongrowPerform segmentation by region growing.signatureComputes the signature of a boundary.specxtureComputes spectral texture of an image.splitmergeSegment an image using a split-and-merge algorithm.statxtureComputes statistical measures of texture in an image.strsimilarityComputes a similarity measure between two strings.x2majoraxisAligns coordinate x with the major axis of a region.Image CompressioncompareComputes and displays the error between two matrices.cv2tifsDecodes a TIFS2CV compressed image sequence.huff2matDecodes a Huffman encoded matrix.huffmanBuilds a variable-length Huffman code for a symbol source.im2jpegCompresses an image using a JPEG approximation.im2jpeg2kCompresses an image using a JPEG 2000 approximation.imratioComputes the ratio of the bytes in two images/variables.jpeg2imDecodes an IM2JPEG compressed image.jpeg2k2imDecodes an IM2JPEG2K compressed image.lpc2matDecompresses a 1-D lossless predictive encoded matrix.mat2huffHuffman encodes a matrix.mat2lpcCompresses a matrix using 1-D lossles predictive coding.ntropComputes a first-order estimate of the entropy of a matrix.quantizeQuantizes the elements of a UINT8 matrix.showmoDisplays the motion vectors of a compressed image sequence.tifs2cvCompresses a multi-frame TIFF image sequence.unravelDecodes a variable-length bit stream.Image Enhancementadpmedian Perform adaptive median filtering.gscaleScales the intensity of the input ransPerforms intensity (gray-level) transformations.Image Noiseimnoise2 Generates an array of random numbers with a specified PDF.imnoise3 Generates periodic noise.Linear Filteringdftfilt Performs frequency domain filtering.spfilt Performs linear and nonlinear spatial filtering.Linear 2-D Filter DesignbandfilterComputes frequency domain band otchGenerates circularly symmetric notch filters.hpfilterComputes frequency domain highpass filterslpfilterComputes frequency domain lowpass filters.recnotchGenerates rectangular notch (axes) filters.Fuzzy LogicaggfcnAggregation function for a fuzzy system.approxfcnApproximation function.bellmfBell-shaped membership function.defuzzifyOutput of fuzzy system.fuzzyfiltFuzzy edge detector.fuzzysysfcnFuzzy system function.implfcnsImplication functions for a fuzzy system.lambdafcnsLambda functions for a set of fuzzy rules.makefuzzyedgesysScript to make MAT-file used by FUZZYFILT.onemfConstant membership function (one).sigmamfSigma membership function.smfS-shaped membership function.trapezmfTrapezoidal membership function.triangmfTriangular membership function.truncgaussmfTruncated Gaussian membership function.zeromfConstant membership function (zero).Morphological Operations (Binary Images)endpointsComputes end points of a binary image.Texture AnalysisspecxtureComputes spectral texture of an image.statxtureComputes statistical measures of texture in an image.Region-Based ProcessinghistroiComputes the histogram of an ROI in an image.Waveletswaveback Performs a multi-level, 2-dimensional inverse FWT.wavecopy Fetches coefficients of a wavelet decomposition structure. wavecut Sets to zero coefficients in a wavelet decomposition structure.wavedisplayDisplay wavelet decomposition coefficients.wavefast Performs a multilevel 2-dimensional fast wavelet transform.wavefilter Creates wavelet decomposition and reconstruction filters.wavepaste Puts coefficients in a wavelet decomposition structure. wavework Edits wavelet decomposition structures. wavezero Sets wavelet detail coefficients to zero. Color Space Conversionshsi2rgb Converts HSI values to RGB color space.rgb2hsi Converts RGB values to HSI color space.Array Operationsdftuv