Answered
Can any body tell me how to implement KSVD in matlab?
Here is a function which implements the K-SVD algorithm. function [ mD ] = DL_KSVD( mD, mX, paramCardinality ) numberO...

oltre 6 anni ago | 0

Answered
Linear Least Squares With 2 Inequality Constraints
I created a solution. It can be found here: http://math.stackexchange.com/a/1403593/33

circa 7 anni ago | 0

| accepted

Question


Linear Least Squares With 2 Inequality Constraints
Hello, I would like to know how can I solve the following Linear Least Squares problem: arg min(x) (Ax - b)'(Ax - b) s....

circa 7 anni ago | 2 answers | 0

2

answers

Answered
Computing Mahalanobis Distance Between Set of Points and Set of Reference Points
Here is the solution fully vectorized (Though uses much more multiplications than needed): mA = reshape(bsxfun(@minus, perm...

circa 7 anni ago | 0

| accepted

Question


Computing Mahalanobis Distance Between Set of Points and Set of Reference Points
Hello, I have an n x p matrix - mX which is composed of n points in R^p. I have another m x p matrix - mY which is compo...

circa 7 anni ago | 2 answers | 0

2

answers

Answered
Backslash for solving very big sparse matrix in Ax=b
If you're memory limited the best solution I know of is <https://en.wikipedia.org/wiki/Conjugate_gradient_method Conjugate Gradi...

circa 7 anni ago | 1

Answered
Weighted k means clustering
Usually the weighting would be using <https://en.wikipedia.org/wiki/Mahalanobis_distance Mahalanobis Distance> Matrix. If I'm...

circa 7 anni ago | 0

Answered
Reshape Video Matrix Into Long RGB Matrix and Back
I think I have a solution (At least one). going from video into one lone image: function [ mOutputImage ] = ReshapeVideo...

circa 7 anni ago | 0

| accepted

Question


Reshape Video Matrix Into Long RGB Matrix and Back
Hello, Let's say I have a Video Matrix `mVideoMatrix`. This is a 4D matrix (Numnber of Rows x Number of Columns x Number o...

circa 7 anni ago | 3 answers | 0

3

answers

Answered
Create a LUT Table by Euclidean Distance
Ok, I created something using the ' <http://www.mathworks.com/matlabcentral/fileexchange/10064-allcomb allcomb> ' function from...

circa 7 anni ago | 0

| accepted

Question


Create a LUT Table by Euclidean Distance
Hello, I have a list of N vectors in 3D space (Points in RGB color space). We'll call that our Dictionary. The whole data ...

oltre 7 anni ago | 1 answer | 0

1

answer

Question


Issues with The Colon (:) Operator
Hello, I have an issue with the colon operator which operates differently than expected. Let's define the following vect...

oltre 7 anni ago | 1 answer | 0

1

answer

Question


Run Queue of Operations in Parallel
Hello, I have an Image - `mA` which I divided into Blocks: `mA1`,`mA2`, `mA3`, `mA4`. Now I have a function - `BlurImage` ...

oltre 7 anni ago | 1 answer | 0

1

answer

Answered
What frustrates you about MATLAB?
There 2 main things I want in MATLAB: # OpenCL support so we'll be able to use AMD graphics card which have great Double Prec...

oltre 7 anni ago | 1

Answered
Parallel Computing Toolbox GPU using ATI with Stream?
There 2 main things I want in MATLAB: # OpenCL support so we'll be able to use AMD graphics card which have great Double Prec...

oltre 7 anni ago | 1

Answered
MATLAB OpenCL
I wish MATLAB will move from CUDA to OpenCL. There are great libraries for that and it is time we'll enjoy GPU acceleration i...

oltre 7 anni ago | 2

Answered
Recursive Implementation of the Gaussian Filter
he answer was simple, the article uses the coefficients value on one hand where the MATLAB implementation on the other. Namely,...

oltre 7 anni ago | 0

| accepted

Question


Recursive Implementation of the Gaussian Filter
Hello, I'm trying to implement the article "Recursive Implementation of the Gaussian Filter". This article suggest an II...

oltre 7 anni ago | 1 answer | 0

1

answer

Question


Generate Code with Structure with Different Size Matrices
Hello, I'm trying to use MATLAB Coder to generate code for the following code: for iScaleIdx = 1:numScales gaussi...

circa 8 anni ago | 1 answer | 0

1

answer

Question


Averaging Overlapping Pixels in Sliding Window Operation
Hello, I'm looking for an efficient way to average overlapping pixels which are result of sliding window operation. To exp...

circa 8 anni ago | 3 answers | 0

3

answers

Answered
When will MATLAB 2014b release?
MATLAB R2014b is out. I'm so disappointed Mathworks does nothing to improve the language speed. Moreover, they are still s...

circa 8 anni ago | 0

Answered
What is changing in R2014b?
MATLAB R2014b is out. I'm so disappointed Mathworks does nothing to improve the language speed. Moreover, they are still s...

circa 8 anni ago | 0

Answered
Integrating MATLAB R2014a with Visual Studio 2013
Update: It seems I managed to have VS 2013 on my list. Yet when I try to use 'loadlibrary' as in the documentation: htt...

circa 8 anni ago | 0

| accepted

Question


Integrating MATLAB R2014a with Visual Studio 2013
Hello, I have Visual Studio 2013 Premium installed. It was installed using its defaults. I try to integrate it with MATLA...

circa 8 anni ago | 1 answer | 0

1

answer

Answered
Matlab R2014a and Visual Studio Professional 2013
I have the same issue, Installed VS 2013 on Windows 7. I have MATLAB R2014a and the VS 2013 isn't on the available compilers li...

circa 8 anni ago | 0

Question


Parallelization of a Loop with 'parfor - Unsuccessfully
Hello, I created an algorithm which work on Image Patches. I go through matrix of an image and apply a function of a neighborh...

circa 8 anni ago | 1 answer | 0

1

answer

Answered
Using the MX Matrix Library in General C Code
It seems Mathworks did something to disable the option to create a C code which uses their library outside the MEX scope. I D...

circa 8 anni ago | 0

| accepted

Answered
Replication Photoshop's Gaussian Blur and Unsharp Mask in MATLAB
Photoshop uses Integral Images approximation for the Gaussian Blur. Its Unsharp Mask is once applied for "Dark Halos" and o...

circa 8 anni ago | 0

| accepted

Answered
Vectorizing Calculation of the Autocorreltion function of a Matrix (Per Column)
It can be done using Toeplitz matrix.

circa 8 anni ago | 0

| accepted

Answered
Which MATLAB operations/functions need speeding up?
The function `im2col`. See here: http://www.mathworks.com/matlabcentral/answers/151941-efficient-implementation-of-im2col...

circa 8 anni ago | 2

Load more