Matlab

Extracting regions of interest from an image
Hello all, My problem is the follwoing, lets assume i have an image that has multiple people (i.e. two people standing), i want to manually extract the people. I want to do it manually like i am not looking for something fancy or automatic. I just want to view the image then move my mouse around the area, and the ou... 4 Aug 2010 12:30

D-optimal Design with different levels
Hi Lets do the following set your bounds as a cell: a{1}=[-1;-0.5;0;.5;1] and etc and include them as follows [dCE,X] = cordexch(nfactors,nruns,A,'bounds',a) where A is a model you wish to have A=[0 0 0...0 ; 1 0 0 ...0; ......; 0 0 0 ...1; 1 1 0 ....; ......;] where 1... 4 Aug 2010 12:29

returning structure of data from a callback funtion
Hello everyone, how can I return my structure of data once is updating from a callback function to the main program? %This s my structure of data called st: st: hfigure: {[1] [] [3] [] []} hz: [0.1000 0.1000 0.1000 0.1000 0.1000] deltaz: [1 1 1 1 1] icxx: [0 0 0 0 0] ... 4 Aug 2010 13:36

An exact simplification challenge - 101 (tan, arctan)
Hello, Mathematica: Tan[1/4 ArcTan[(16 Sqrt[2] (11030013328417+6423142241817* Sqrt[3]))/(80380562320289 + 43647808257288 Sqrt[3])]] Maple: tan(1/4*arctan(16*(6423142241817*3^(1/2)+11030013328417)* 2^(1/2)/(43647808257288*3^(1/2)+80380562320289))) Can you get rid of these tan/arctan ? Cheers, Vlad... 5 Aug 2010 03:44

Matlab animation error
Hi all, I've been trying to make an animation in avi format using the following code (posted at the end). The main issues i'm having are: 1. the animation is messed up displaying different parts of the animation in different areas eg. what should be at the bottom left corner is displayed in the top right corner.... 4 Aug 2010 11:24

Simelectronics: torque and velocity measurement (DC motor)
Hello, I'm trying to simultaneously measure the torque and angular velocity of the DC motor shaft in the elec_controlled_dcmotor example. I've tried two methods: 1) adding the "ideal torque sensor" in parallel to the "ideal rotational motion sensor" and 2) adding the "ideal torque sensor" in series between th... 12 Aug 2010 04:56

What's changed?
Hi all, I downloaded a file from the File Exchange and it ran fine in my version of MATLAB (R2009a). I began tweaking it to see if it would fit my application more and messed up, causing it not to run. As my error wasn't obvious, I thought I'd just redownload the file and do it again... but now the original/unalt... 4 Aug 2010 11:24

GUI Frame capture
Hello, I've built a GUI within matlab to read, parse, display imagery collected from various cameras. I have built play,rewind, controls, time overlays, etc. I've also built a "Avi Save" function that will capture the images to an avi. I'm doing this with the getframe,addframe functions that looks something li... 4 Aug 2010 11:24

Do you need a database of images for testing your MATLAB object-tracking code?
Quite often people in this newsgroup post questions about tracking objects (people, cars, cells, etc.) in video using MATLAB or SIMULINK. Sometimes they are looking for test images to test their code with. I ran across this, in case anyone is interested. Use the contact info at the end if you're interested (don'... 4 Aug 2010 11:24

Send command through RS232 at program stop in xPC
Can I send a command through RS-232 only when the program stops? I need to send a command to stop data flow. I currently do a similar thing to start the data flowing. I need to send the command once at the beginning. To do this I have the command connected to a switch block. The middle switch in connected to a... 4 Aug 2010 11:24