image thumbnail

updated almost 11 years ago

Nonlinear Diffusion Toolbox by Frederico D'Almeida

Set of functions to perform nonlinear diffusion on images. (filtering, nonlinear diffusion, anisotropic diffusion)

anidifstep(x, a, b, c)

aosiso(x, d, t)

aosiso1(x, d, t)

image thumbnail

updated almost 12 years ago

DTMF Detector by Frederico D'Almeida

Detects DTMF tones in audio by Goertzel algorithm. (dtmf, communications, goertzel)

dtmfdet(x,fs,varargin)

goertzel(x,fs,ft,N,varargin)

image thumbnail

updated almost 13 years ago

General Extra Toolbox by Frederico D'Almeida

Generic functions for matrix manipulation, image processing, etc. (matrices, matrix, fft)

COUNT(X)

Y =addpaths(varargin)

Y=pad(varargin)

image thumbnail

updated almost 13 years ago

Shrink by Frederico D'Almeida

Eliminates image borders. (morphology, segmentation, shrink border image)

shrink(X,E)

image thumbnail

updated almost 13 years ago

Posterize by Frederico D'Almeida

Reduces the number of colors of an image. (color, posterize reduce colo...)

posterize(varargin)

image thumbnail

updated almost 13 years ago

Grow by Frederico D'Almeida

Expands matrix (image) borders. (filtering, grow border expand)

grow(varargin)

image thumbnail

updated almost 13 years ago

Noise by Frederico D'Almeida

Adds diferent types of noise to an image. (image generation, noise image processin..., noise)

noise(varargin)

image thumbnail

updated almost 13 years ago

Fast Tridiagonal System Solver by Frederico D'Almeida

A fast tridiagonal system solver. (approximation, interpolation, tridiagonal)

thomas(varargin)

image thumbnail

updated almost 13 years ago

Fast 2D Max/Min Filter by Frederico D'Almeida

Fast 2D Max/Min filter for images using the van Herk algorithm. (filtering, vanherk herk filter i...)

maxfilt2(X,varargin)

minfilt2(X,varargin)

vanherk(X,N,TYPE,varargin)

image thumbnail

updated almost 13 years ago

Image Markers by Frederico D'Almeida

Plots an image and superimposes a binary image as a colored marker. (specialized, plotting, image)

imagem(varargin)

Contact us