Matlab

Help in reading FITS files through fitsread
I have many fits file with the extension .lc (denoting light curves). Running fitsinfo: fitsinfo('sw00100319000b_1chan_1s.lc') ans = Filename: 'sw00100319000b_1chan_1s.lc' FileModDate: '30-Jun-2010 04:46:08' FileSize: 60480 Contents: {'Primary' 'Binary Table' 'Binary Table' '... 3 Jul 2010 11:15

Beginner's problem with MEX -files
Hi all, I am the definition of a beginner with mex files. I ve reached a stage with my imaging algorithm where I just have to mex some cell computations for speed. I have optimised the m-code as much as I could but C/C++ seems now the only option to speed things up. I followed the mex tutorial by Mathworks, thoug... 7 Jul 2010 11:14

R2009b and Windows 7
I'm trying to run Matlab R2009b 32 bits on a Windows 7 (Ultimate 64 bits) system, the installation went fine but now it won't open, however Matlab.exe runs in the background. I've tried the following without success: 1. turning off Aero Glass Interface 2. playing with the various compatibility modes (XP, Vista, etc.)... 5 Jul 2010 15:31

How can i compare two pictures in Matlab?!
Hellow.I have a problem... I'm a beginer in image procesing specialy in Matlab ! If someone can help me with my probleme ...I want to compere two images : - first , this image http://drop.io/vyi5dic/asset/smiley-jpg - second image http://drop.io/vyi5dic/asset/smiley-bad-jpg-2 So i want to compere those two image :... 3 Jul 2010 17:53

Locating indices of more than one of the maximum values of anarray
An immediate solution which comes to mind : If you want to find the M largest values of vector A: 1) Sort the original array and store the result in B 2) Find the Mth largest value(which is in the (N-M+1)th location). 3) Using find() again, locate the indices of all elements greater than the above element. C... 3 Jul 2010 07:58

Adding constrains to a nonnegative least-squares solution
I'm trying to solve a nonnegative least-squares constraint problem using lsqnonneg() - how can I add constrains on lsqnonneg()'s solution ? for example - I need all the elements of the [x] vector returned as a solution to sum up to 1 ...how can I do that ? Thank you. ... 5 Jul 2010 13:18

svmtrain problem
Hello, I've trying to use svmtrain and svmclassify to classify Landsat images (imgaes on 7 spectral bands). When I first try to run svmtrain I get this: Error in ==> ciorna_SVM at 4 SVM=svmtrain(train,classes_train); After that I try to convert the paramaters to double and I het this error: ??? Error using ==... 3 Jul 2010 06:54

segmentation of image
Hello, I am trying to achieve segmentation of an image, to futher do OCR on it. I am able to remove the background of the image and able to get the 3 letters that I am interested in the image. Now, I want to further segment this letters individualy so that I can do OCR and achieve the letters in text format. But sinc... 6 Jul 2010 05:42

regexprep tokens
My question is how to use function regexprep to replace a whole string with a part of it. K>> str='a_b_c.3d.6';regexprep(str,'\w?_(\w+)_\w+?','$1') ans = b.3d.6 What I want is only ‘b’,how to define the pattern?Thanks. ... 3 Jul 2010 11:16

Locating indices of more than one of the maximum values of an array
Hey all, i would really appreciate some help in a rather simple problem (i think is is anyway). I don't seem to be able to find a proper function for detecting the indices of multiple maxima in a (1 dimensional) array. That is, it would be really nice if the [C,I]=max(A,[],dim) function had an additional argument for ... 4 Jul 2010 08:59