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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...

11年以上前 | 0

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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...

11年以上前 | 0

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

11年以上前 | 0

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

11年以上前 | 2

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MATLAB's JIT Engine
Another look on the subject: http://justindomke.wordpress.com/2012/09/17/julia-matlab-and-c/ And they got much faster. ...

12年弱前 | 0

質問

Create The Image Laplacian Matrix Effectively
Hello, I want to build the Spatial Laplacian of a given operation on an image. The Matrix is given by: <</matlabcentr...

12年弱前 | 1 件の回答 | 0

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How can we find anisotropic 2*2 tensor in an image?
You may have a look at the code I published here: <https://github.com/JarnoRalli/PDE-based-image-processing/issues/1> If a...

12年弱前 | 0

質問

Replication Photoshop's Gaussian Blur and Unsharp Mask in MATLAB
Hello, Has anyone succeeded to replicate Photoshop's Gaussian Blur and Unsharp Mask function up to a rounding error? Photosh...

約12年前 | 2 件の回答 | 0

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質問

Calculating the Minimum and The Maximum of a Slidig Window
Hello, How would you create the fastest implementation to extract the Minimum and the Maximum of a Local Sliding Window over ...

約12年前 | 2 件の回答 | 0

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Sliding window minimum and maximum filter
I would use: localMaxImage = colfilt(inputImage, [winLength winLength], 'sliding', @max); localMinImage = colfilt(inputI...

約12年前 | 1

質問

Constrained Weighted Least Squares (Image Interpolation)
Hello, I'd like your assistance with solving a constrained weighted least squares problem. I can't use `lsqlin` since the ...

約12年前 | 2 件の回答 | 0

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How to apply Kalman filter on time series?
Kalman Filter is pretty straight forward, why not write it yourself? You can see all needed here: <https://en.wikipedia.or...

約12年前 | 0

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Installing c++ compiler for MATLAB
I think you can use Microsoft Windows SDK: http://www.mathworks.com/support/compilers/R2014a/index.html Specifically: h...

約12年前 | 0

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how can I make this code faster on the GPU?
Hopefully, next versions of MATLAB will support OpenCL 2.0. When that happens, CPU and GPU will use the same memory space which...

約12年前 | 0

質問

The Flop (Floating Point Operations per Second) Rate of MATLAB Code
Hello, I know Intel MKL / IPP libraries performance in simple operations (Multiplication, Summation, Matrix Multiplication, Vec...

12年以上前 | 2 件の回答 | 0

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Which MATLAB operations/functions need speeding up?
_filter_ As published in File Exchange, simple loop unrolling is much faster than the current implementation. Also the GPU ...

12年以上前 | 0

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Image processing technique in depth map concept
This would be estimating the "Depth Map" of the image by one image. I think it could be done by estimating the "Blur Level". ...

12年以上前 | 0

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Can MATLAB work well and paralellize code with AMD Radeon HD 7670m graphics card ?
Unfortunately, MATLAB doesn't support OpenCL. ATI is the right choice for GPGPU. MATLAB, at the moment, isn't. You can al...

12年以上前 | 0

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Calculate the number of days in a year
I would go something like that: firstDayInYear = '01/01/2012'; lastDayInYear = '31/12/2012'; firstDayInYearNum = ...

約13年前 | 0

質問

Multiply Image Pixels by a Matrix
Hello, Let's say I have a 3 channel image M -> [numRowx * numColumns * numChannels]. I also have a 3 by 3 matrix A (Color Conb...

13年以上前 | 1 件の回答 | 0

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質問

Solving a Bilinear Optimization Problem
Hello, I would like to optimize to following expression: <<http://i.imgur.com/ey7Hy.png>> Note: All are matrices. I'd l...

14年弱前 | 1 件の回答 | 0

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質問

Using the MX Matrix Library in General C Code
Hello. I'm trying to create a MEX filte. In order to debug the code I'm trying to compile it in Visual Studio. I'm replacin...

14年弱前 | 2 件の回答 | 0

2

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質問

Deploying Standalone Executable with No MCR
Hello. I have a simple M file which creates a GUI, let the user chose a text file, apply a simple manipulation on the text file...

14年弱前 | 2 件の回答 | 0

2

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Matlab 2012a
One of the most disappointing releases. Nothing really got improved :-).

約14年前 | 0

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What is missing from MATLAB?
Built in 64 Bit Compiler to allow out of the box integration with Adobe Photoshop using 64Bit versions of the software.

14年以上前 | 0

質問

Vectorizing Calculation of the Autocorreltion function of a Matrix (Per Column)
Hello. I have a matrix A = [1 2 3; 4 5 6; 7 8 9]; I want to calculate the Autocorrelation function of each of its col...

15年弱前 | 2 件の回答 | 0

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Basic probability question
Uniform distribution is always a good point to start from. Then just divide the range [0 1] to whatever ratio you'd like accord...

15年弱前 | 0

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how do i reverse a vector
This might work as well (For 1D Vectors): vReversed = v(end:-1:1); Good luck!

15年弱前 | 6

質問

Converting Analog Filter into Digital Filter
Hello. I'm trying to design a simple Digital Filter. The transfer function of the filter is: 1 / s + alpha Where 'alpha' is ...

15年弱前 | 3 件の回答 | 0

3

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Plot question: Monthly data on yearly axis
If I'm guessing right what's your difficulty the fact that plot doesn't show "NaN" values should assist you. Meaning, Pad you...

約15年前 | 0