Median filtering for medical images

I m new to matlab and i dont know anything.I have the subject digital processing and we are supposed to do proj in that even though we are not taught wat is matlab just the thing we are asked to refer the Matlab Help section and study by our own.I tried but i couldnt understand.and now we r supposed to do choose a ieee paper and do it.I chose Median filtering in constant time but i cant understand wat the algorithm is doing actually and i dont know how to write code for it pls help .Would be grateful

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/8026-best-way-s-to-master-matlab

Answer 1

[Sean de Wolski]

doc medfilt2

Is probably a good place to start.

[Soulami Mukherjee]

Sean de Wolski i couldnt understan wat u sent coz i cnt open the link wich u hv sent.. the doc file

[Sean de Wolski]

run that at the MATLAB command line and it will open the doc page in your current version.

[Soulami Mukherjee]

and Sean do u know matlab well?

[Walter Roberson]

Soulami, did you check the Contributors list? http://www.mathworks.com/matlabcentral/answers/contributors

[Daniel Shub]

or the contact address of Sean?

[Soulami Mukherjee]

i did check but i dont know i need an ebook to know what a matlab is. i checked matlab help section i m not gettin nythin.and i hv been asked to write code for some algorithms wich i am unable to understan. ppl says matlab is easy but i m not getting the ryt thing to understan i have the book digital image processing using matlab by Gonzalez and Woods. and i understood nuthin.!i am helpless

[Daniel Shub]

MATLAB is far from easy. To master, or even effectively use, MATLAB you need a strong understanding of mathematics, programming, and the MATLAB language. Books like "Digital Image Processing" assume you have all of those skills and teach you how to do image processing with MATLAB. The MATLAB documentation provides a foundation for understanding the MATLAB language, but not programming or mathematics. Learning MATLAB is a lot of work. You need to read and work through hundreds of examples before you start to make progress.

[Soulami Mukherjee]

SO wat shud i do Daniel?Like matlab is not my field .. me a computer student..and recently this subject has been introduced and hv been asked to do a proj on it.and only i know Digital image processing but nothing in Matlab ..neithr matlab have been taught to us.!

[Sean de Wolski]

There are a couple obvious things you can do:

-Ask your professor for help where you are stuck.

-Watch some of Doug's getting started videos as well as the getting started demos/doc.

-Search the Goog for similar issues.

-Ask us _SPECIFIC_ MATLAB-based questions.

[Sean de Wolski]

Less obvious would include:

http://25.media.tumblr.com/tumblr_kz4i78InVw1qa501lo1_500.png

[Soulami Mukherjee]

the obvious one was useful..but the other one was bit hilarious !

Answer 2

[Image Analyst]

Doug Hull's video tutorials ( http://blogs.mathworks.com/videos/) is another good place to start.

I know just how you feel. When I was in college taking a course on linear (matrix) algebra and numerical analysis, the professor taught us all the theory and asked us to do exercises in FORTRAN, which he knew none of us knew yet, but didn't give us any training in FORTRAN. He just expected us to pick it up as we went along.

[Soulami Mukherjee]

And then wen u were asked to do it in FORTRAN then how did u do it..wen u knew nuthin..??

[Image Analyst]

I read books on Fortran, and asked other students for help. I at least knew to do that.

Answer 3

[Daniel Shub]

It does not seem like you are asking about median filtering, but rather how to use MATLAB. There really isn't any thing that can be said here about getting started with MATLAB that hasn't been covered already in other places. One of the great things about MATLAB is its documentation and the number of books that have been written covering all aspects of MATLAB.

Once you understand what you need to do from a theory stand point and have written some code, we can help you get over the last few hurdles that are specific to your problem.

[Soulami Mukherjee]

i did check but i dont know i need an ebook to know what a matlab is. i checked matlab help section i m not gettin nythin.and i hv been asked to write code for some algorithms wich i am unable to understan. ppl says matlab is easy but i m not getting the ryt thing to understan i have the book digital image processing using matlab by Gonzalez and Woods. and i understood nuthin.!i am helpless.. and i hv got an ieee paper whr there are 3 algorithms ..and i hv to write code for that. wat i thot i ll be able to understan matlab. but i m unable to understand!

[Daniel Shub]

I am sorry, but I do not answer questions or comments written in languages that I do not speak and "i m not gettin nythin.and i hv" is not the English I speak.

[Image Analyst]

I think a new keyboard would help Soulami enormously. His appears to be broken. It could be the cause of countless syntax errors and bugs.