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Mario Trevino


Johns Hopkins University

Last seen: environ 2 mois il y a |  Actif depuis 2011

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Can someone help me open a Simulink file from an old version of matlab? (probably around year 2000)
Hi there everybody I wonder if someone of you could help me open an old Simulink file and store it in a more recent version?

environ 2 ans il y a | 1 réponse | 0

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Question


Password protect mat files
Hi there everybody, Im writing an application and I would like to password protect the generated mat files... is there an easy w...

environ 2 ans il y a | 2 réponses | 1

2

réponses

Question


cannot send an email through matlab
Im not being able to send an email thgourh matlab.... My google account allow external applications to use it.... here is the c...

presque 6 ans il y a | 1 réponse | 0

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Question


Adding a special boundary condition to an ODE
Hi everyone! Im solving an ODE using fmincon and a cost function. Im able to find the best parameters of the model and Im happy...

plus de 9 ans il y a | 1 réponse | 0

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displaying SET operations with MATLAB
hi everyone Im performing some set operations with MATLAB and I wonder wherther you know of any nice application which I could ...

plus de 9 ans il y a | 1 réponse | 0

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réponse

Question


Yaw, Pitch and Roll
hi Everyone I have a video where I record, on each frame, the location of a little plaque with 4 colored dots (different color ...

plus de 10 ans il y a | 2 réponses | 0

2

réponses

Question


Display precision vs actual precision
Hi everyone We are running some simulations in MATLAB and storing the results afterwards. Yet, we are concerned that the actual...

plus de 10 ans il y a | 2 réponses | 0

2

réponses

Question


how to send me an email from matlab running on another computer?
any suggestions?

plus de 10 ans il y a | 2 réponses | 0

2

réponses

Question


detecting computer ID from matlab
Hi everyone, I wonder if any of you can tell me how to get the computer ID from within matlab? I want to make a compiled functi...

plus de 10 ans il y a | 2 réponses | 0

2

réponses

Question


Cell Arrays vs Matrices
Gentlemen, are cell arrays faster or slower than Matrices to store numbers? thanks in advance! mario

plus de 10 ans il y a | 1 réponse | 0

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réponse

Question


homogeneous distribution of particles over the surface of a sphere
hi everyone, I have a very simple question Im using random numbers from a uniform distribution (range from 0 to 2*pi) to create...

plus de 10 ans il y a | 1 réponse | 0

1

réponse

Question


Creating synthetic images with controlled properties?
Hi everyone, Im trying to find out if there is a clever way to mathematically generate a set of different images with some key s...

environ 11 ans il y a | 2 réponses | 0

2

réponses

Question


how to open many matlab instances from matlab?
hi there, I want to make a function that opens multiple matlab instances (from within matlab) and then starts running different ...

plus de 11 ans il y a | 2 réponses | 0

2

réponses

Question


RGB colors in scatter3
Im trying to plot n [X,Y,Z] dots in 3d with their colors given by C which is a nx3 matrix describing the RGB colors for each dot...

plus de 11 ans il y a | 1 réponse | 0

1

réponse

Question


how to get name of a function (within the function)
Wise gentlemen: how do I get the name of a function within the function?

plus de 11 ans il y a | 4 réponses | 0

4

réponses

Question


Renaming files without preserving their date and creation time
I want to rename files but without preserving their original date and creation times.So far, Ive tried two options: OPTION 1:...

plus de 11 ans il y a | 1 réponse | 0

1

réponse

Question


Can you help me with a logistic regression?
I need to solve the following system: log(pR,i/pL,i)=SIGMA{ alpha_j [(rR,i-j)-(rL,i-j)]}+SIGMA{ beta_j [(cR,i-j)-(cL,i-j)]}+g...

presque 12 ans il y a | 1 réponse | 0

1

réponse

Question


Recover image from current figure without saving it
Suppose I have: figure imshow(matrix) hold on scatter(x2,y2,size2,color2, 'filled') axis square axis off ...

presque 12 ans il y a | 1 réponse | 0

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réponse

Réponse apportée
How to make a set of RGB color combinations
Hey there, thanks for your help Im solving an image processing problem, and Im planning to create multiple masks with different...

environ 12 ans il y a | 0

Question


How to make a set of RGB color combinations
I want to build a finite set of RGB colors, say 100, which maximices the overall differences (Euclidean distance) between each o...

environ 12 ans il y a | 3 réponses | 1

3

réponses

Question


How to build a rotationally symmetric mask?
Hi everyone, suppose I have 'p' given by a generalized Gaussian function and want to make a rotationally symmetric mask of it (i...

environ 12 ans il y a | 1 réponse | 0

1

réponse

Question


Need help to classify a variable for parallel computing
I have something like: parfor .... [blobCentroid(i-chunk,1:2),blobOrientation(i-chunk,1)]=blob_analysis(vidFrame_bn);...

plus de 12 ans il y a | 1 réponse | 0

1

réponse

Réponse apportée
VideoReader.m and read.m in MATLAB 64 bit
NICE! little bug, simple solution, big headache. thank you very much Walt!

plus de 12 ans il y a | 0

Question


VideoReader.m and read.m in MATLAB 64 bit
read function is crashing at line 91 even after updating line 91 if( ~isempty(obj.NumberOfFrames) ) with if( ~isem...

plus de 12 ans il y a | 2 réponses | 0

2

réponses

Question


Image Segmentation of cells
Hi everybody, Im trying to detect cells in images for which Im using some functions based on watershed segmentation. However, th...

plus de 12 ans il y a | 1 réponse | 0

1

réponse

Question


Optimization of two linear models with constraint
I have a dataset which is a 'v-shaped' pattern of dots: y_observed and want to adjust two linear regressions with a turning poin...

plus de 12 ans il y a | 1 réponse | 0

1

réponse

Question


returning the indexes of an image displayed with a specific colormap
hi, does anyone know hot to get the numeric indexes of a displayed image with a specific user defined colormap??? for example...

plus de 12 ans il y a | 1 réponse | 0

1

réponse

Question


Solving an ODE with best-fit adjustment to empirical observations
Hi everybody, I want to numerically solve an ODE but I want to fit the constants to experimental data following that ODE. Any si...

presque 14 ans il y a | 1 réponse | 0

1

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Question


ODE with discrete, external input
Hi everybody, I want to solve a simple ODE for specific discrete time points in which constats are updated externally for each s...

presque 14 ans il y a | 2 réponses | 0

2

réponses