PhD

Solved

Pizza!

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

2 månader ago

Question

Matlab exponent bug?

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

mer än 9 år ago | 2 answers | 1

Answered

eigen faces

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

eigen faces

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

mer än 9 år ago | 0

| accepted

Answered

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.

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.

mer än 9 år ago | 0

| accepted

Answered

Calling another program

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

Calling another program

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

mer än 9 år ago | 0

Answered

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...

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...

mer än 9 år ago | 1

| accepted

Answered

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: ...

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: ...

mer än 9 år ago | 0

Answered

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...

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...

mer än 9 år ago | 0

Answered

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...

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...

mer än 9 år ago | 1

Answered

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...

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...

mer än 9 år ago | 0

Answered

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...

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...

mer än 9 år ago | 0

Question

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...

mer än 9 år ago | 1 answer | 0

Question

Multiple Callback Functions

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

mer än 9 år ago | 5 answers | 1

Answered

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(:))?

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(:))?

mer än 9 år ago | 0

Answered

2D projection in a 3D plot

something similar has just recently been asked: http://www.mathworks.com/matlabcentral/answers/8752-get-projection-image-witho...

2D projection in a 3D plot

something similar has just recently been asked: http://www.mathworks.com/matlabcentral/answers/8752-get-projection-image-witho...

mer än 9 år ago | 1

Answered

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

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

mer än 9 år ago | 0

Answered

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 ...

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 ...

mer än 9 år ago | 1

| accepted

Answered

RGB to HSV image

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

RGB to HSV image

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

mer än 9 år ago | 0

Answered

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...

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...

mer än 9 år ago | 0

Answered

subscript mismatch

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

subscript mismatch

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

nästan 10 år ago | 0

Question

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...

nästan 10 år ago | 1 answer | 0

Answered

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 ...

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 ...

nästan 10 år ago | 1

| accepted

Answered

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...

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...

nästan 10 år ago | 2

| accepted

Answered

Trouble with ButtonDownFcn and Hittest in GUIDE

this looks reasonable to me. have you tried ThePlot = plot(xvalues, yvalues, 'Parent', handles.TheAxes, 'Tag', 'ThePlotTag'...

Trouble with ButtonDownFcn and Hittest in GUIDE

this looks reasonable to me. have you tried ThePlot = plot(xvalues, yvalues, 'Parent', handles.TheAxes, 'Tag', 'ThePlotTag'...

nästan 10 år ago | 1

| accepted

Answered

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,...

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,...

nästan 10 år ago | 4

Answered

Creating an inline-function in dependence of a parameter

maybe str2func is what you are looking for?

Creating an inline-function in dependence of a parameter

maybe str2func is what you are looking for?

nästan 10 år ago | 0

Question

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...

nästan 10 år ago | 1 answer | 0

Answered

Seeded Region Growing Method

what about the FE submission: http://www.mathworks.com/matlabcentral/fileexchange/19084 ?

Seeded Region Growing Method

what about the FE submission: http://www.mathworks.com/matlabcentral/fileexchange/19084 ?

nästan 10 år ago | 1

Answered

detecting circular Objects

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

detecting circular Objects

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

nästan 10 år ago | 0

Submitted

Multi ROI/Mask Editor Class

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

nästan 10 år ago | 18 downloads |