Computes the absolute value of a real-valued number/matrix, the modulus of a complex number/matrix.

Computes the arcus cosine of a real-valued number/matrix

returns 1 if all elements of x are non-zero, otherwise 0.

returns 1 if at least one element of x is non-zero, otherwise 0.

Applies the bilateral filter to an image

Computes the arcus sine of a real-valued number/matrix.

Asserts that x is true, and generates an error otherwise (if x is false)

Computes the arcus tangent of a real-valued number/matrix.

Computes the arcus tangent of a real-valued number/matrix with two parameters Returns the principal value of the arc tangent of y/x, expressed in radians.

A 1D binary search algorithm: given a sorted vector x0, find the index of the element that is closest to ‘value’.

Checks whether the specified box contains a given point.

Build a 2D shearlet transform

Construct a 2D DT-CWT transform

Constructs a 2D wavelet transform

Builds an energy-weighted (non-Parseval) 2D shearlet transform (in which the variance of white noise is preserved in the subbands)

Builds a steerable pyramid transform

Build a pyramid for speeding up the volume ray casting

Implementation of the Canny edge detector

Horizontal concatenation function: works for matrix, complex matrices and cell matrices

Returns the nearest integer not less than x

Creates an empty cell vector of length a

Generate a colored gaussian random noise, with the given power spectral density.

Applies circular (periodic) shifting of a given vector, according to the relationship y[p] = x[p+d]

Clamps the input coordinate between [0,p], i.e.

Computes the color band covariance matrix of an image

Changes the current color map to the specified name.

Apply the specified color transform to an image

Converts a real-valued number/matrix to a complex-valued number/matrix

Computes bilateral filter coefficients

Computes the HUE value of a given RGB color value

Returns the conjugate of a complex-valued number (or matrix)

Returns a one-level deep copy of the specified variable.

Computes the cosine of x, where x is specified in radials

Allocates uninitialized complex-valued shared memory according to the dimensions x.

Allocates zero-initialized complex-valued shared memory according to the dimensions x.

Computes the cumulative product of all elements of a matrix (along the rows)

Computes the cumulative sum of all elements of a matrix (along the rows)

Creates a uninitialized complex-valued data matrix of dimensions a x b

Creates a zero-initialized complex-valued data vector of length a

Determinant of a real-valued matrix

Creates a diagonal matrix from a one dimensional vector.

Lists all files in a given directory according to the specification

Shows a visualizer window for matrices

Computes a displacement difference.

Computes the dot product between two vectors

Performs a dual-tree complex wavelet transform

Computes the 2D DWT.

Untiled inplace version of the dwt2d

Horizontal derivative operation

Horizontal derivative operation (adjoint operation)

Vertical derivative operation

Vertical derivative operation (adjoint operation)

Generates an error with the specified message

Dynamic expression evaluation

Computes e^x

Computes 2^x

Creates an n x n identity matrix

Returns x!

Closes the specified file (that was previously opened using fopen)

Computes the 1D Discrete Fourier Transform (DFT) of x along the last dimension that has size != 1.

Computes the 2D Discrete Fourier Transform (DFT) of x along the first (0) and second (1) dimension of x

Computes the 3D Discrete Fourier Transform (DFT) of x.

Moves the DC components of a 1D discrete Fourier transform (DFT) to the center of the data.

Moves the DC components of a 2D discrete Fourier transform (DFT) to the center of the data

Moves the DC components of a 3D discrete Fourier transform (DFT) to the center of the data

Finds the location of the non-zero elements of x.

flips a two dimensional matrix horizontally

flips a two dimensional matrix upside-down (vertically)

Converts an integer number to floating point

Returns the nearest integer not greater than x.

Opens the specified file for reading or writing.

Opens a new window

Prints text to a file (opened in text mode)

Prints C-style formatted text to a file (opened in text mode)

Computes the fractional part of x such that x = floor(x) + frac(x)

Reads binary data from a file (opened in binary mode)

Reads C-style formatted text from a file (opened in text mode)

Writes binary data to a file (opened in binary mode)

Applies a Gaussian filter to the image

Generates the power spectral density matrix, corresponding to the given point-wise function)

Conversion from grayscale to RGB

Hermitian transpose of a matrix

Retain current graph when adding new graphs (plot, scatter or imshow function).

Extracts the horizontal edges of an image using a horizontal prewith filter

Extracts the horizontal edges of an image using a horizontal scharr filter

Extracts the horizontal edges of an image using a horizontal sobel filter

Performs Hue-Saturation-Lightness correction of an image

Conversion from Hue-Saturation-Lightness (HSL) to RGB

Conversion from Hue-Saturation-Lightness (HSL) to RGB

Conversion from Hue-Saturation-Value (HSV) to RGB