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Bruno Pop-Stefanov

MathWorks

Attivo dal 2013

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Developer for the Image Processing Toolbox.

Some interests: image processing, computer vision, computational photography, machine learning.

Although I work for MathWorks, all my comments, answers and opinions expressed here are mine alone and do not necessarily reflect those of MathWorks, past or present.

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Risposto
Does the Computer Vision Toolbox function "demosaic" use the IPP library?
No, it does not use IPP. |demosaic| implements the following algorithm: <http://research.microsoft.com/apps/pubs/default.aspx...

quasi 9 anni fa | 3

| accettato

Risposto
how to remove hair , and find the center of finger knuckle
This is not perfect, but slightly better than the results you got: I = rgb2gray(imread('06.jpg')); se = strel('dis...

quasi 10 anni fa | 1

Risposto
i need to find cicrles in below black and white image
You can use the <http://www.mathworks.com/help/images/ref/imfindcircles.html |imfindcircles|> function from <http://www.mathwork...

circa 10 anni fa | 0

Risposto
Filling data gaps in a periodic timeseries in MATLAB
This is definitely not an easy problem. There are several ways you can go about this. *1) Curve Fitting* The easiest metho...

circa 10 anni fa | 1

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How to draw a line perpendicular to the medial axis in each point and save the intensity values?
Take a look at the file |overlayLines.m| that I have attached. This function draws red lines over an RGB image. You can certainl...

circa 10 anni fa | 0

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Projecting binary mask back onto image to read values
The binary image you obtain can be used to do logical indexing. Logical indexing is accessing the elements of a matrix using a l...

circa 10 anni fa | 0

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Need Symmetric Multivariate Laplace Distribution
There is a submission on the File Exchange for a Laplacian random number generator: <http://www.mathworks.com/matlabcentral/file...

circa 10 anni fa | 0

Risposto
Stop some code from Publishing
*1) How to hide some parts of the code* One way to publish parts of the code while hiding some other parts that you still wan...

circa 10 anni fa | 7

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overlay geotiffs with transparency using different colormaps
Calling <http://www.mathworks.com/help/map/ref/geoshow.html |geoshow|> a second time will overlay over what was previously displ...

circa 10 anni fa | 1

Risposto
orthogonal collocation on finite elements: Matlab code
Take a look at these links: <https://www.kirp.chtf.stuba.sk/~fikar/research/dynopt/fik05oc.pdf A MATLAB PACKAGE FOR ORTHOGONA...

circa 10 anni fa | 0

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Display of structures in Variables panel
The new display for struct arrays has been released starting with MATLAB R2013b and you cannot revert to the old one. The new di...

circa 10 anni fa | 0

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Change how struct variable fields are displayed?
Unfortunately, it's not possible to display the fields vertically (i.e., each column represents an element of the struct array) ...

circa 10 anni fa | 0

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Using parfor instead of for
Dividing the work into several jobs and sending the jobs to the workers is very expensive. This is done at the line with |parfor...

circa 10 anni fa | 0

| accettato

Risposto
Virtual Camera Support for Matlab Image Acquisition Toolbox
Hi Sonny, I read that Axis Streaming Assistant creates a DirectShow device. Can you confirm that this is the case for the vir...

circa 10 anni fa | 0

Risposto
matlab 2014b on Yosemite, high CPU%
The _getting status for files_ message appears because of the Source Control integration in the Current Folder browser. Try disa...

circa 10 anni fa | 4

Risposto
Errors with getblast/blastread built-in functions
What release of Bioinformatics Toolbox are you using? There was a bug in R2009a and earlier in which the <http://www.mathwork...

circa 10 anni fa | 0

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How to factor a matrix by a list of symbolic variables
Are the equations in |Y| linear in the variables in |Theta|? If yes, this is a simple linear system of equations, which you can ...

circa 10 anni fa | 0

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Risposto
Matlab(R2014b) compatible with OS X Yosemite?
Hi Andreas, To be clear: MATLAB R2014a is the latest release available to students: <http://www.mathworks.com/academia/stu...

circa 10 anni fa | 0

Risposto
EPS export problems in R2014b
Can you check the |'PaperPositionMode'| property of the figure before printing it in each case? Try setting it to |'auto'| befor...

circa 10 anni fa | 2

| accettato

Risposto
How Can I simulate non uniform background illumination?
If I understand your question correctly you would like to generate images with non-uniform background illumination in order to t...

circa 10 anni fa | 0

| accettato

Risposto
Github support for Matlab files
You can add any type of file to a Git repository. However, if you are using command-line Git (meaning, you have installed Git on...

circa 10 anni fa | 1

| accettato

Risposto
Creating subplot from saved semilog plots
This is probably because the axes scale is linear by default. Change the |'YScale'| property from |'linear'| to |'log'| as fo...

circa 10 anni fa | 0

| accettato

Risposto
Word Matlab Notebook and figures...
I tried on my end and it looks like you can only show one figure per cell. Instead of defining 1 cell containing all of your cod...

circa 10 anni fa | 0

| accettato

Risposto
MATLAB command-line git for Mac?
MATLAB R2014b does support git, but you still have to install it on your system in order to use it with MATLAB. Unfortunately, t...

circa 10 anni fa | 2

Risposto
the priority and benefits of saving data in .mat file
MAT files are compressed, binary files used to store data on the computer's hard drive. It is a convenient way to save data for ...

circa 10 anni fa | 4

| accettato

Risposto
How to create string array using inpu
You need to use <http://www.mathworks.com/help/matlab/matlab_prog/what-is-a-cell-array.html cell arrays>: for i=1:5 ...

circa 10 anni fa | 2

| accettato

Risposto
uigetfile window screen position
What version of MATLAB do you use? What operating system? I tried with MATLAB R2014b on Windows 7 with two monitors and the |...

circa 10 anni fa | 1

Risposto
Matlab / Mupad does not solve definite integral
If you want to "force" MATLAB to give a numeric solution to an integral, you can use the <http://www.mathworks.com/help/matlab/r...

circa 10 anni fa | 1

Risposto
Storing multiple images in one 4D Array
I am not sure I understand what you would like to achieve exactly, but here are a few suggestions: If you have p images, each...

circa 10 anni fa | 1

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Risposto
How do I smooth out a surface distribution plot?
There is no off-the-shelf functionality in MATLAB that allows you to detect outliers in data. Techniques exist but it is still a...

circa 10 anni fa | 1

| accettato

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