Matlab

Help request: Image segmentation loop
Hi, I am new to medical imaging analysis and matlab. Here is what I am trying to solve, hope you can provide me some guidance: I am trying to segment an image into smaller blocks and analyze data those blocks individually. For example, I have a 20x20 image (grayscale) and I want to segment into four blocks and form a... 15 Apr 2010 22:33

How to delete string from a list of cells
Good day, I have a list of string ids that look like this: 'Test001' 'Test002' 'Test003' 'Test004' 'Test005' ... I need to iterate through this list and delete a stringID based on a user request. I know that I will have to use a loop, but I'm not sure which function to use to delete a stringID exa... 16 Apr 2010 11:41

Multiple object tracking
Hi everyone, i m currently working on object tracking for undergraduate final project. i'm using regionprops to get bounding box for every object on my image. but... i just want to track single object, how to eliminate other object that i dont need ? this is my code : for i=1:1:193 %(number of image) ... 16 Apr 2010 02:56

Search of data within vector
Hi, I need to find the indices of some values within a certain vector. I know that I can use 'for loop' with 'find' commands to get them one by one. But I am asking if there is another technique to find them at one time. I need this because the size of the values is about 10^6 and by using 'for loop' the speed of th... 15 Apr 2010 22:33

kmeans
Does anyone know what version of matlab has the built in function "kmeans"? It is in my student version (7.8.0 R2009a), but I want to be able to use it in a version that will allow me to import a larger data set. I tried it on the computers at my school, but they don't recognize the function. If you can give me any ... 15 Apr 2010 21:28

Context units
Dear all, let´s suppose that I have created an Elman network witn NEWELM. I suppose that Matlab sets randomly an starting value to the context units. How can I see the initial context units values? Then I train the network (Train or Adapt)....with a given dataset. How can I see the value of the context units as t... 15 Apr 2010 20:21

plotting rectangle aroung moving objects
"No0o0oR " <n.khaznadar(a)live.com> wrote in message <hmmh7k$4a9$1(a)fred.mathworks.com>... ImageAnalyst <imageanalyst(a)mailinator.com> wrote in message <92a439bd-a714-4324-bde3-44e92ec2695d(a)z35g2000yqd.googlegroups.com>... Nour : Did you see MATLAB's "People tracking demo"? http://www.mathworks.com/produc... 15 Apr 2010 20:21

drawing kmeans centroids in MATLAB
Hello - my main question is given a feature centroid, how can I draw it in MATLAB? In more detail, I have an NxNx3 image (an rgb image) of which I take 4x4 blocks and compute a 6-dimensional feature vector for each block. I store these feature vectors in an Mx6 matrix on which I run kmeans function and obtain the ce... 15 Apr 2010 21:28

average the elements of an array
So I'm quite new to Matlab, so excuse me if my question is simple or dumb but I have this line of code in my program that doesn't give any errors, but doesn't appear to do anything either: matrix(x,y) = ((matrix((x-1),y)+matrix(x,y)+matrix((x+1),y))/3); this line is inside a double for loop with the x's and y's being... 20 Apr 2010 15:56

help with dctlab
I downloaded the MATLAB Gui "DCTlab" for image compression from http://www.sprljan.com/nikola/matlab/dctlab.html but i keep getting this error whenever i try to use the function in matlab dctlab ??? Error using ==> figure Invalid property found. Object Name : figure Property Name : 'ShareColors'. Error i... 15 Apr 2010 19:12