Addition of more than one image is no not possible in for loop?

I want to segment an image region grow algorithm. I have taken seed points using getpts. My code is executed. I have obtained individual images in each iteration. But I want all segmented region in one image at last iteration. But I cannot get that. Please help me to overcome this problem.

close all;
I=imread('CT6.jpg');
I=im2double(I);
I=rgb2gray(I);
figure,imshow(I);
hold on;
[y x]=getpts;
n=length(x);
hold off;

J=zeros(10,10);
for i=1:n-1 
    x(i)=round(x(i));
    y(i)=round(y(i));
    J = regiongrowing(I,x(i),y(i),0.1); 
    %J=(J,J);
    K=imadd(J,J)
    figure,imshow(J);
end
figure,imshow(J);

[Geoff Hayes]

Jhilam - please clarify what you mean by I want all segmented region in one image at last iteration. Do you want one image composed of all five, which you seem to be doing with

 K = imadd(J,J);

at each iteration of the loop, or do you mean something else?

[Jhilam Mukherjee]

Yes I want to composed all five image in a single image. I will further process the segmentation image.

[Image Analyst]

Did you see my answer below? It does that. If you want all of them in a single axes rather than figure , then you can use montage().

[Geoff Hayes]

@Image Analyst - I think that Jhilam means to add/layer all images on top of one another using imadd.

[Image Analyst]

I added another answer after you pointed that out. See below.

Answer 1

[Image Analyst]

Try adding J to the prior K rather than to J (itself).

if i == 1
  K = double(J);
else
  K = K + J;
end
imshow(K, []);
drawnow;

[Jhilam Mukherjee]

Yes, My problem is solved. I get my desire output.

Answer 2

[Image Analyst]

Try using subplot() instead of using figure:

close all;
I=imread('CT6.jpg');
I=im2double(I);
I=rgb2gray(I);
figure,imshow(I);
hold on;
[y x]=getpts;
n=length(x);
hold off;
subPlotRows = ceil(sqrt(n));

J=zeros(10,10);
for i=1:n-1 
    x(i)=round(x(i));
    y(i)=round(y(i));
    J = regiongrowing(I,x(i),y(i),0.1); 
    %J=(J,J);
    K=imadd(J,J)
    subplot(subPlotRows, subPlotRows, i)
    imshow(J);
end