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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 ...

2 years 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...

2 years ago

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

2 years ago

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Given a and b, return the sum a+b in c.

2 years ago

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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 ...

2 years 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...

2 years 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:...

2 years ago

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 ...

3 years ago | 0

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

3 years 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....

3 years ago | 2 answers | 0

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Submitted

Fast Anisotropic Curvature Preserving Smoothing
Fast Anisotropic Curvature Preserving Smoothing for High Quality Image Denoising

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...

4 years 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...

4 years ago | 2 answers | 0

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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...

4 years ago | 0

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

4 years ago | 0

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...

4 years ago | 0

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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...

4 years ago | 3 answers | 0

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

4 years ago | 0

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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 ...

4 years ago | 1 answer | 0

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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...

4 years ago | 1 answer | 0

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Submitted

Fast Guassian Blur
Fastest Implementation of Gaussian Blur

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` ...

4 years ago | 1 answer | 0

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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...

4 years ago | 1

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...

4 years ago | 1

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...

4 years ago | 1

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,...

4 years 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...

4 years ago | 1 answer | 0

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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...

4 years ago | 1 answer | 0

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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...

4 years ago | 3 answers | 0