Matlab

Fisheye distortion correction
I am trying to correct the distortion from a fisheye lens in MATLAB on an image that looks something like this: http://www.path.unimelb.edu.au/~bernardk/tutorials/360/background/images/circ_fisheye.jpg Does anyone have some sample MATLAB code or know what the mapping function should be? Thank you for your at... 1 Apr 2010 06:48

How to do classification and train model for product term
Hi, anyone who willing answer my question thanks in advance. First of all, I'm new to matlab, if got any mistake please tell me. Now I want to use few hundred of keyword (related to my product name) to do classification, the method use can be any like neural network. But how to do it? Is there have any tutorial that... 1 Apr 2010 05:44

Simulink Parameter Estimation without rebuilding at each iteration?
Hello everyone, I'm performing parameter estimation using Simulink on a model containing the following blocks: - Input, output ports - Sums - Gains (containing estimated parameters) - 1/s - Abs - Switch (containing estimated parameters) - Fcn (containing estimated parameters) - A subsystem containing not... 1 Apr 2010 12:21

How to calculate distance within matrix consisting of zero's and one's ?
Hi all, I have my matrix of 100*60. Among 6000 units , i just have '1'(one's) in 95-100 cell. Each matrix have different position of one's like : A=[ 0 0 1 0 .......1 1 0 0 1 .......0 0 1 0 0 .......1 0 0 0 0 .......0] B=[ 0 1 0 0 .......1 0 0 1 1 .......1 0 0 0 0 .... 1 Apr 2010 04:39

Om Image processing
Hi, I am a new user to matlab. 1. I am working on segmentation of multispectral images.Initially I will be doing edge detection. Can anyone tell me, after performing edge detection on an image , how to fill the regions with different value so that I can use the regions for further classification. 2. How to... 1 Apr 2010 04:39

How to generate PSD profile for road surface
Hi, I am currently working on suspension system. Can anybody tell me how to model PSD for a road profile. I have road profile data. Thanks all, maheshnagarkar(a)rediffmail.com ... 1 Apr 2010 04:39

Simulink: Band-Limited White Noise
I use Band-Limited White Noise in Simulink It needs two parameters: noise power & sampling time. I understand the latter. In help it says that "noise power" is height of the PSD. Is it the variance of the white noise? Because i need to cretae a white noise with variance.. Thank you in advance. ... 1 Apr 2010 22:26

Domain error. To compute complex results from real x
Hi, my simulink program gave that error : Domain error. To compute complex results from real x, use 'sqrt(complex(x))'. but it didnot specify the code line, I think this is a general problem. but I didnot find anything. what can be the reason for that error? or with which function ? thanks umut ... 1 Apr 2010 03:35

RFID tags
Hello, maybe my question would be lost in the forum, but has somebody work with RFID tags? I know I can read them, but can I write or modify the inside data? Does anyone know where can I find more about this? ... 1 Apr 2010 03:35

error i need help!!!
trying to open a file from my current directory and error pops up saying " Error using==> open at 158 could not find external editor" please provide me a solutio!!! ... 1 Apr 2010 02:30