how I link the broken edges ?

    %Input Image
      A=imread('C:\Users\sufi\Desktop\matlab_kinect\Data_image\st1.png');
      figure,imshow(A);
      B=medfilt2(A);
      figure,imshow(B);
      B= imfill(B,'holes');
      figure,imshow(B);
      %Image obtained using MATLAB function 'edge'
      E=edge(B,'sobel',.03,'horizontal');
      figure,imshow(E);title('Image obtained using MATLAB function');
    ##########

• * after applying this code, it eliminates stairs edges also. But if i dont use filtering then there are some broken edges. what should i do now. i want to detect strong horizontal edges and try to find straight horizontal lines. plez help me out of this.**

Answer 1

[Image Analyst]

Try hough() or houghlines(). See the documentation for a nice demo.

[sufian ahmed]

I applied hough. but there are broken straight lines. some horizontal edges r not detected. please give the solution

[Image Analyst]

Look up "edge linking MATLAB" in Google and find things like this: http://www.peterkovesi.com/matlabfns/#edgelink so I can't give you the solution directly.

Personally, I don't have any such code for you.

[sufian ahmed]

i already tried this code edgelinking.m . but it not works giving some error.

[Image Analyst]

I understand. Keep working on it. Good luck.