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POSome error with Adaptive median filter code
 

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  1. POSome error with Adaptive median filter code
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    <pre><code>%% Adaptive Median Filtering - The Code ip1 = imread ('lena.gif'); %% Undistorted image ip = imnoise (ip1,'salt &amp; pepper',0.25); %% Image corrupted with 'Salt and Pepper Noise' ip_median_filt1 = medfilt2(ip); %% Apply median filter to noisy image with window dimensions of 3x3 pixels ip_median_filt2 = medfilt2(ip,[4,4]); %% Apply median filter to noisy image with window dimensions of 4x4 pixels figure(1), clf; subplot (2, 1, 1), imshow (ip, []); subplot (2, 1, 2), imshow (ip_median_filt1, []); %% We now proceed with the adaptive median filtering of the noisy image and %% prove that the results are better than those of the standard median filter %% shown above %% Packing zeros around the edge pixels of the noisy input image so as to %% allow the facilitate the processing of edge-pixels of the image ip_edge = zeros (212,276); ip_convert = double (ip); %%%%%%%%%% there seems to be error on the following line ip_edge (11:202, 11:266) = ip_edge (11:202, 11:266) + ip_convert; smax=9; for i=11:202 for j=11:266 sx=3; sy=3; while ((sx&lt;=smax) &amp;&amp; (sy&lt;=smax)) ip_edge_min = ip_edge (i, j); ip_edge_max = ip_edge (i, j); ip_edge_median = median(median(ip_edge((i-floor(sx/2)):(i+floor(sx/2)),(j-floor(sy/2)):(j+floor(sy/2))))); for k= (i-floor (sx/2)) :( i+floor (sx/2)) for l= (j-floor (sy/2)) :( j+floor (sy/2)) if ip_edge (k, l) &lt; ip_edge_min ip_edge_min = ip_edge (k, l); end if ip_edge (k, l) &gt; ip_edge_max ip_edge_max = ip_edge (k, l); end End end A = ip_edge_median - ip_edge_min; B = ip_edge_median - ip_edge_max; if (A&gt;0) &amp;&amp; (B&lt;0) C = ip_edge (i, j) - ip_edge_min; D = ip_edge (I) - ip_edge_max; if (C&gt;0) &amp;&amp; (D&lt;0) pledge (i, j) = ip_edge (i, j); break else ip_edge (i, j) = ip_edge_median; break end else sx=sx+2; sy=sy+2; if (sx&gt;smax) &amp;&amp; (sy&gt;smax) ip_edge(i,j) = ip_edge(i,j); end end end end end end figure(2), clf; imshow(ip_edge,[]); </code></pre> <p>I am getting an error at the line with the %%%%%%%%%%: </p> <blockquote> <p>??? Error using ==> plus Matrix dimensions must agree. Error in ==> adaptive at 22 ip_edge (11:202, 11:266) = ip_edge (11:202, 11:266) + ip_convert;</p> </blockquote>
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