Visual impairment algorithm! Help!

Hi, I'm trying to create few algorithms. First of is to create an image with blurred from outside and create blurred black dot to simulate visual impairment. after that I wanna create another one to try to "fix" images for visually disabled people. Something like chartoonization. Can someone help me? for the first algorithm I have some code but is only start how to load image and add blur form outside, I stop on adding black blur. for the second I create something similar but it's not that what I'm refering. Here is link to the article which is my referrer. I don't know exact rules for community but if I put something that I didn't should, please let me know.

First algorithm starts on the page 7 and second is described on page 5.

http://www.biomedical-engineering-online.com/content/pdf/1475-925X-9-27.pdf

I just want someone who can point me in which direction should I continue my research, what should I know and how can I create those algorithms. I'm begginer with programming and using matlab. Thanks

Answer 1

[Image Analyst]

Well you're going to have to slog your way through that yourself. I can tell you that to blur you can use conv2() or imfilter(). To do a median filter, you can use medfilt2(). To use anisotropic diffusion, see my attached demo. Other that, as you know, it's quite a bit of work and we don't have the time to do it all for you. If you have shorter questions on your code, you can add them as a comment to my Answer or your original question.

[Nikola]

Thank you for such quick answer. Probably I will ask more when I stuck somewhere. I was looking up your demos, can you recommend me some to get to know better the program?

[Image Analyst]

You can look at Peter's web site for a variety of other code from him: http://www.csse.uwa.edu.au/~pk/Research/MatlabFns/

Or you can look in my File Exchange for a small number of my demos. I've only uploaded a handful of the 150 or so that I have. http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862