Jonas Reber

Last seen: más de 3 años hace | Con actividad desde 2011

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

más de 3 años hace

Pregunta

Matlab exponent bug?
Hello MatLabers I have encountered a problem when calculating a non integer exponent/power of a variable. example: ...

más de 12 años hace | 3 respuestas | 1

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Respondida
eigen faces
Eigenfaces are eigenvectors. When performing principal component analysis (PCA) on a set of images showing human faces, the pri...

más de 12 años hace | 0

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Respondida
when using copyobj() with a contour, changing properties of the copy has no effect
mathworks technical support confirmed that this is a misbehaviour and that it will be resolved in a future version.

más de 12 años hace | 0

| aceptada

Respondida
Calling another program
you might be looking for system('command') [status, result] = system('command') [status,result] = system('command','-...

más de 12 años hace | 0

Respondida
Assigning data to variable names in a vector during a for loop.
yes this is possible. you could use the command "eval" that comes with matlab. have a look at the documentation. for your c...

más de 12 años hace | 1

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Respondida
how to use fread function?
have a look at the documentation of fread: http://www.mathworks.ch/help/techdoc/ref/fread.html you might be looking for: ...

más de 12 años hace | 0

Respondida
How to save an image displayed ?
have a look at the solution I provided in your second question. it should answer both: http://www.mathworks.com/matlabcentral/a...

más de 12 años hace | 0

Respondida
How to recostruct ROI on an image and diaplay it?
after having read your first question ( <http://www.mathworks.com/matlabcentral/answers/18789-how-to-save-an-image-displayed>) I...

más de 12 años hace | 1

Respondida
Update to R2011b breaks call to addlistener
does the event exist on the "figureHandle"? get(get(classhandle(handle(figureHandle)),'Events'),'Name') what if you tr...

más de 12 años hace | 0

Respondida
size of image
how did you store your images? is it a 2d matrix? did you store it like: (N images of size 3 by 4) 1 1 1 1 1 1 1 1 1 1 1 1...

más de 12 años hace | 0

Pregunta

when using copyobj() with a contour, changing properties of the copy has no effect
Hello MatLabers I'm using a contour plot on several axes. Since I have quite an amount of points, the calculation of the cont...

más de 12 años hace | 1 respuesta | 0

1

respuesta

Pregunta

Multiple Callback Functions
Hello MatLabers I'm trying to have multiple callback functions executed on a uicontrol callback function. Usually I go so...

casi 13 años hace | 5 respuestas | 1

5

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Respondida
Competing algorithms for SNR of a image. Which is better?
I would go for method 2 (3 is the same?) but wouln't one calculate SNR = mean2(im)/std(im(:))?

casi 13 años hace | 0

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2D projection in a 3D plot
something similar has just recently been asked: http://www.mathworks.com/matlabcentral/answers/8752-get-projection-image-witho...

casi 13 años hace | 1

Respondida
manipulate pixels in an image
if you don't have it you could take a look at e.g. http://www.mathworks.com/matlabcentral/fileexchange/4658-updownsample

casi 13 años hace | 0

Respondida
Data sets from image
does it help if I provide you the following code as an example...? %% Two Dimensional DFT Example % 1.Load the sample ...

casi 13 años hace | 1

| aceptada

Respondida
RGB to HSV image
does the rgb2hsv function not work? I do it that way..., hsvimg = rgb2hsv(rgbimg); ... do something ... (like saturat...

casi 13 años hace | 0

Respondida
Image Processing: Remove double edges
you could take another derivative (2nd) and only keep the positive values 1 0 1 => 0 -1 1 (depenting on the direction you are...

casi 13 años hace | 0

Respondida
subscript mismatch
maybe this one answers your question: http://www.mathworks.com/support/tech-notes/1200/1207.html#5 you try to assign/access...

casi 13 años hace | 0

Pregunta

iptPointerManager significantly slows program down
Hello MatLabers As recently I was looking for a method to have a mouse over (mouse hover) effect on my graphics objects (drag...

casi 13 años hace | 1 respuesta | 0

1

respuesta

Respondida
Code's improvement (plots animation)
the problem is that getframe as used by you gets the current figure as it is. If you maximize the window and "record" the movie ...

casi 13 años hace | 1

| aceptada

Respondida
get projection image without rendering to screen
you could calculate the perspective projection of your model yourself as you have all the information on camera position, look a...

casi 13 años hace | 2

| aceptada

Respondida
Trouble with ButtonDownFcn and Hittest in GUIDE
this looks reasonable to me. have you tried ThePlot = plot(xvalues, yvalues, 'Parent', handles.TheAxes, 'Tag', 'ThePlotTag'...

casi 13 años hace | 1

| aceptada

Respondida
I can not use libsvm!!!
I used libsvm myself in matlab. * download it from ( <http://www.csie.ntu.edu.tw/~cjlin/libsvm/#download>) * add the svmtrain,...

casi 13 años hace | 5

Respondida
Creating an inline-function in dependence of a parameter
maybe str2func is what you are looking for?

casi 13 años hace | 0

Pregunta

Contextmenu Callback to set class variable
Hello MatLabers I am looking for a better/smoother way to implement the setting of a class variable in a callback. I'm sure t...

casi 13 años hace | 1 respuesta | 0

1

respuesta

Respondida
Seeded Region Growing Method
what about the FE submission: http://www.mathworks.com/matlabcentral/fileexchange/19084 ?

casi 13 años hace | 1

Respondida
detecting circular Objects
have you had a look at: http://www.mathworks.com/matlabcentral/fileexchange/9833-hough-transform-for-circle-detection

casi 13 años hace | 0

Enviada

Multi ROI/Mask Editor Class
This Class allows you to easily define multiple regions of interest (binary masks) with a nice UI.

casi 13 años hace | 5 descargas |

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