error in imagesc - trying to shift an image after finding centroid

I'm trying to find the centroid of an image that has one circle in it. Then use this coordinate along with the size of the image to decide how far to shift the image so that the circle is in the center of the screen. I'm getting all the information fine, but when I shift the image and try to display it, the colors are not the same when I use imshow and I get an error stating "Truecolor Cdata contains element out of range 0.0<=value<=1.0

My code is below, any help would be great!

BW = imread('imshift.png');

BW1=im2bw(BW,.9);

s = regionprops(BW1, 'centroid');

centroids = cat(1, s.Centroid);

axis tight

imagesc(BW)

hold on

plot(centroids(:,1), centroids(:,2), 'b*')

hold off

impixelinfo

centroids=round(centroids);

indr=sub2ind(size(BW1),centroids(:,2),centroids(:,1));

pixplane=size(BW1,1)*size(BW1,2);

indg=indr+pixplane;

indb=indg+pixplane;

center=reshape(BW([indr;indg;indb]),[],3);

[r c z]=size(BW);

rowcent=round(r/2);

colcent=round(c/2);

centc=centroids(1);

centr=centroids(2);

nr= (rowcent - centr);

nc = (colcent-centc);

imagesc(BW);

imz=zeros(size(BW));

mskr=(1:r)-nr;

ix=find((mskr>0)&(mskr<=r));

mskr=mskr(ix);

mskc=(1:c)-nc;

ix=find((mskc>0)&(mskc<=c));

mskc=mskc(ix);

r1=max([1,nr+1]);

r2=min([r,nr+r]);

c1=max([1,nc+1]);

c2=min([c,nc+c]);

imz(r1:r2,c1:c2,:)=BW(mskr(1):mskr(end),mskc(1):mskc(end),:);

imz=im2double(imz);

imagesc(imz);

Thanks again!

[Image Analyst]

If you upload your image, we can run your code. Also, include the "imshow()" line of code where the error occurs (you did not include that code). The only display code I see is imagesc(), not imshow() like you said. Also, copy and paste the exact error message - don't paraphrase it, that's not helping.