Solved

Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

casi 3 años ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

casi 3 años ago

Solved

Triangle Numbers

Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

casi 3 años ago

Solved

Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

casi 3 años ago

Solved

Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

casi 3 años ago

Solved

Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

casi 3 años ago

Solved

Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

casi 3 años ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]

In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

casi 3 años ago

Solved

Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

casi 3 años ago

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(mInitD, mX, cardinality) mD ...

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(mInitD, mX, cardinality) mD ...

más de 3 años 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

Linear Least Squares With 2 Inequality Constraints

I created a solution. It can be found here: http://math.stackexchange.com/a/1403593/33

alrededor de 4 años 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....

alrededor de 4 años ago | 2 answers | 0

Submitted

Fast Anisotropic Curvature Preserving Smoothing

Fast Anisotropic Curvature Preserving Smoothing for High Quality Image Denoising

alrededor de 4 años ago | 4 downloads |

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...

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...

alrededor de 4 años 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...

alrededor de 4 años ago | 2 answers | 0

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...

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...

más de 4 años ago | 0

Answered

Weighted k means clustering

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

Weighted k means clustering

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

más de 4 años 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...

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...

más de 4 años 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...

más de 4 años ago | 3 answers | 0

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...

Create a LUT Table by Euclidean Distance

Ok, I created something using the ' <http://www.mathworks.com/matlabcentral/fileexchange/10064-allcomb allcomb> ' function from...

más de 4 años 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 ...

más de 4 años ago | 1 answer | 0

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...

más de 4 años ago | 1 answer | 0

Submitted

Fast Guassian Blur

Fastest Implementation of Gaussian Blur

más de 4 años ago | 9 downloads |

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` ...

más de 4 años ago | 1 answer | 0

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...

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...

más de 4 años 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...

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...

más de 4 años 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...

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...

más de 4 años ago | 1

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,...

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,...

más de 4 años 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...

más de 4 años ago | 1 answer | 0