Matlab

Bilinear interpolation of a single value
I want to get the value from a matrix having only a non-integer element address without doing a simple roundoff. Example: Matrix(1,1) = 9; Matrix(1,2) = 5; Matrix(2,1) = 7; Matrix(2,2) = 0; I want to get the value at (1.2,1.7). I know the principle of bilinear interpolation and I know of the interp2 function,... 15 Apr 2010 06:56

interp3 problems
Hi, I'm new to matlab and would like to do something that I think is pretty straight forward using interp3. I have an array with dimensions x, y, z and I want to interpolate the grid xy onto a finer z axis. Then I want to extract one grid xy but it will be made up of small parts of all the z points. In reali... 15 Apr 2010 04:49

func argument that changes over time
Hi all, I have a loop set up where I load up a new file with each iteration. I can't quite figure out how to set up my script to account for the changing file name. E.g.: for i=1:10 filename = sprintf('file%d,' i); load filename; end since the load function requires a file path, I cannot readily us... 15 Apr 2010 04:49

multi-row image stitching
I am currently working on multi-row image stitching problem, I have successfully implemented a single row stitching before which employs the cylindrical warping technique.I would like to know whether I have to replace the cylindrical warping with a spherical warping technique in order to get the multi-row stitching don... 15 Apr 2010 04:49

2kx2k image
I installed a Matlab GUI for image compression from http://sprljan.com/nikola/matlab/dctlab.html (DCTlab and JPEG2000) But I'm having problems trying to resize images to 2^k x 2^k . Any idea on how i can do it?? Plus when i try to run DCTlab i get this error: ??? Error using ==> figure Invalid property found.... 15 Apr 2010 03:44

Callback function for changes of figure properties
"Adrian Wanner" <wannerad(a)ini.phys.ethz.ch> wrote in message <hgtbok$riv$1(a)fred.mathworks.com>... Hi all, I would like to set a callback function that is called whenever any property of a certain figure is changed (eg. if a the 'color' or 'position' property has changed, etc.). There is probably a Java-based solu... 15 Apr 2010 03:44

knn that returns the neighbors?
Is there a matlab implementation that returns the k nearest neighbors instead of the class label for the majority class of the k nearest neighbors? ... 15 Apr 2010 11:22

gui
hi, i m working GUi. first i want to place india map on axes button. then i want to draw some circles on that map . both should be on same axes only. thanks ... 15 Apr 2010 03:44

'GUI-Edit text ui control'-Way to detect mouse click in the edit text
Hi I am designing a graphical user interface. I have an edit text box. I would like that when a user double clicks inside the text box a new window open up with the options of inserting the text, else user can himself enter the text from the keyboard. The problem is that I am struggling to find a way to detect the m... 15 Apr 2010 06:55

User Inpur date Check
Hi I have a user interface where user is prompted to enter a date in a format 'dd/mm/yy'. I would like to check that if user has entered a valid date or not. I thought of using datenum(dateinput,'dd/mm/yy') with a view that if a user inputs a wrong date then datenum will return an error. It does not work. if date... 15 Apr 2010 06:55