Error using / Matrix dimensions must agree. during Gui Execution

below code is for a pushbutton3. On click of the button this code should identify boundary and area calculation of the detected circle. but this code is displaying below error(screenshot attached) constantly. i dont know which matrix dimensions i have to correct.

global New_Image
btn4=getappdata(handles.RoiTag,'aadjusted'); % taken from pushbutton2
for ii=1:size(btn4, 1)
    for jj=1:size(btn4,2)
        pixel=btn4(ii,jj);
            if (pixel>=0 && pixel<=100)
                pixel=0;            
            else
                pixel=255;
             end
             New_Image(ii,jj) = pixel;
    end
end
Ball = New_Image(:,:,1) > 10; 
Ball=~(Ball);
bw = imfill(Ball,'holes');
[B,L,~] = bwboundaries(bw,'noholes');
axes(handles.axes2);
% figure('Name',filename(a).name,'NumberTitle','off');
imshow(label2rgb(L,@jet,[0.5 0.5 0.5]));title('Area of the Circle');
% imshow(label2rgb(L,[]));title('Area of the Circle');
hold on
% myColorMap = jet(length(B));
for k = 1:length(B)
     boundary = B{k};
%   plot(boundary(:,2),boundary(:,1),'w',myColorMap(k,:),'LineWidth',2)
    plot(boundary(:,2),boundary(:,1),'w','LineWidth',2)
end
stats=regionprops(L,'Area','Centroid', 'EquivDiameter');
threshold = 1;

for bound=1:length(B) % loop over the boundaries
    boundary=B{k};% obtain (X,Y) boundary coordinates corresponding to label 'k'
    
    % compute a simple estimate of the object's perimeter
    delta_sq = diff(boundary).^2;    
    perimeter = sum(sqrt(sum(delta_sq,2)));
    
    % obtain the area calculation corresponding to label 'k'
    area=stats(k).Area;
   
    % compute the roundness metric
    metric = 4.*pi.*area./perimeter.^2;
    
    % display the results
    metric_string = sprintf('%2.2f',metric);
    
    % mark objects above the threshold with a black circle
      if gt(metric, threshold)
        centroid = stats(k).Centroid;
        plot(centroid(1),centroid(2),'ko');
      end
  
  text(boundary(1,2)-35,boundary(1,1)+13,metric_string,'Color','y',...
       'FontSize',7,'FontWeight','bold')
setappdata(handles.ExtractTag,'area1',area);
end

waiting for kind response.

thanks

[Adam]

What are the contents of L at the time of the error? You can use the Stop/Pause on Error option from the Breakpoints menu in the editor to have the code stop at the error and then use the Function Call stack to navigate back to the linie of your own code that triggered the error rather than the line in the jet function or wherever else it lands by default.

[sidra Rafique]

its working.

i simply change the code from this

imshow(label2rgb(L,@jet,[0.5 0.5 0.5]));title('Area of the Circle');

to this.

imshow(label2rgb(L,jet,[0.5 0.5 0.5]));title('Area of the Circle');

Thanks