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Highlights from
Toolbox diffc

Toolbox differencial calculus...
clamp(x,a,b)
compute_crossp_vf_vf(v1,v2) compute_crossp_vf_vf - compute the crossproduct of 2 3D vector fields.
compute_deviator_tensor(T) compute_deviator_tensor - compute trace free tensor
compute_diff(x,order,options) compute_diff - compute central derivative (of order 'order') of a vector.
compute_flow(p, r, s, c, n) compute_flow - generate a flow
compute_gaussian_filter(n,s,N... compute_gaussian_filter - compute a 1D or 2D Gaussian filter.
compute_grad(M,options) compute_grad - compute the gradient of an image using central differences
compute_gradient_tensor(M,h,o... compute_gradient_tensor - compute the structure tensor
compute_hessian(M,options) compute_hessian - compute the hessian tensor field.
compute_hodge_decompositon(v,... compute_hodge_decompositon - perform Hodge decomposition of a vector field.
compute_laplacian(M,options) compute_laplacian - compute the laplacian of an image.
compute_local_maxima(M,v,d,et... compute_local_maxima - find the location of local maxima.
compute_movie_file(A, filenam... compute_movie_file - create an avi or gif file
compute_operator_1(M,par,opti... compute_operator_1 - compute a 1st order differential
compute_operator_2(M,par,opti... compute_operator_2 - compute a 2nd order differential
compute_periodic_poisson(d, s... compute_periodic_poisson - solve poisson equation
compute_rigidity_tensor(M,opt... compute_rigidity_tensor - compute the rigidity tensor field
compute_structure_tensor(M,si... compute_structure_tensor - compute the structure tensor
compute_tensor_field(n, pos,t... compute_tensor_field - compute a parametric 2D tensor field
compute_tensor_field_random(n... compute_tensor_field_random - create 2D TF
compute_vf_angle(v,dir)
compute_vf_polar_dec(vf) compute_vf_orientation - compute the polar decomposition of a vector field.
compute_vf_trajectory(points0... compute_vf_trajectory - compute the trajectories of a vector field
crop(M,n,c) crop - crop an image to reduce its size
div(Px,Py, options) div - divergence operator
getoptions(options, name, v, ... getoptions - retrieve options parameter
grad(M, options) grad - gradient, forward differences
imageplot(M,str, a,b,c) imageplot - diplay an image and a title
load_flow(name, n, options) load_flow - load a predefined flow
load_image(type, n, options) load_image - load benchmark images.
nb_dims(x) nb_dims - debugged version of ndims.
perform_angle_doubling(v,dir) perform_angle_doubling - double the angle of a vector field
perform_blurring(M, sigma, op... perform_blurring - gaussian blurs an image
perform_conjugate_gradient(A,... perform_conjugate_gradient - perform (bi)-conjugate gradient
perform_convolution(x,h, boun... perform_convolution - compute convolution with centered filter.
perform_fluid_dynamics(v,M,op... perform_fluid_dynamics - simulate a viscous fluid
perform_histogram_equalizatio... perform_histogram_equalization - perform histogram equalization
perform_image_advection(M,v, ... perform_image_advection - perform image advection along a flow
perform_orientation_diffusion... perform_orientation_diffusion - perform diffusion of orientation data
perform_tensor_decomp(T,order... perform_tensor_decomp - perform an eigendecomposition.
perform_tensor_decomp_3d(in1,... perform_tensor_decomp_3d - decompose a 3D tensor field
perform_tensor_eigendecomposi... perform_tensor_eigendecomposition - decompose a tensor field
perform_tensor_mapping(T,dir) perform_tensor_mapping - go back and forth from tensor to non-linear domain
perform_tensor_recomp(e1,e2,l... perform_tensor_recomp - create the tensor field corresponding to the given eigendecomposition.
perform_vf_integration(vf, dt... perform_vf_integration - perform a time integration of the vf
perform_vf_normalization(v) perform_v_normalization - renormalize a vector field.
perform_vf_reorientation(v, o... perform_vf_reorientation - try to reorient the vf.
plot_tensor_field(H, M, optio... plot_tensor_field - display a tensor field
plot_tensor_field(H, M, optio... plot_tensor_field - display a tensor field
plot_tf(T,M) plot_tf - plot a tensorial field.
plot_vf(vf, M, options) plot_vf - plot a vector field with
plot_vf_scaterred(vf, pos, is... plot_vf_scaterred - plot a vector field with
prod_tf_sf(T1,s) prod_tf_sf - compute the product of a tensor field by a scalar field.
prod_tf_tf(A,B) prod_tf_tf - compute the product of 2 tensor fields
prod_tf_vf(T,v) prod_vf_vf - compute the product of a tensor field and a vector field.
prod_vf_sf(v1,s) prod_vf_sf - compute the product of a vector field by a scalar field.
prod_vf_vf(v1,v2) prod_vf_vf - compute the dot product of 2 vector field.
progressbar(n,N,w) progressbar - display a progress bar
publish_html(filename, output... publish_html - publish a file to HTML format
rescale(x,a,b)
test_cg.m
test_diffc.m
test_div_grad.m
test_flow.m
test_hessian.m
test_incompressible_fluid.m
test_orientation_diffusion.m
test_singular_points.m
test_structure_tensor.m
test_tensor_3d.m
test_texture_advection.m
test_vf_integration.m
test_vf_reorientation.m
toolbox_diffc.m
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5.0 | 2 ratings Rate this file 20 Downloads (last 30 days) File Size: 1.18 MB File ID: #5103

Toolbox diffc

by Gabriel Peyre

04 Jun 2004 (Updated 27 Jun 2009)

A toolbox to perform differential calculus on a matrix.

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File Information

Description

See HTML help file for information about the content (see below in 'Published HTML files').

MATLAB release

MATLAB 6.5 (R13)

Tags for This File
Everyone's Tags	differential calculus, mathematics, tensorial field, vector field
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Comments and Ratings (3)
25 May 2006	Truc Phan	it's really helpful. We do not need to again and again calculate those time-consuming functions
28 Mar 2008	Walid Kamoun	I AM trying to run it but it keeps on outputting "Undefined function or method 'getoptions' for input arguments of type 'struct'."
28 Nov 2009	Sheraz Khan

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Updates
13 Jul 2004	Added non centred differences.
11 Aug 2004	Added quick gradient computation.
27 Apr 2007	GPL license.
21 Nov 2007	Fixed a few bugs.
01 Feb 2008	Added diagonalization of 3D tensors fields.
18 Aug 2008	Add html help files.
25 Jun 2009	BSD Licence
27 Jun 2009	Update of Licence

Tag Activity for this File
Tag	Applied By	Date/Time
differential calculus	Gabriel Peyre	22 Oct 2008 07:21:59
tensorial field	Gabriel Peyre	22 Oct 2008 07:21:59
vector field	Gabriel Peyre	22 Oct 2008 07:21:59
mathematics	Gabriel Peyre	22 Oct 2008 07:21:59

Highlights from Toolbox diffc

Toolbox diffc

Highlights from
Toolbox diffc