how to convert plot image into normal imge

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senthil kumar
senthil kumar 2012-10-9
i convert an image is boundary format but it can display plot format. i am using saveas command function only display in out side of matlab .i am using imshow does not show anything.please help me how to store image in matlab readable format.
and how can i get x,y coordinate values boundary B{k}
clear;
close all;
i1=imread('76.jpg');
i1=rgb2gray(i1);
i2=im2bw(i1,.4);
i2= wiener2(i2,[5 5]);
i2=imfill(i2,'holes');
%i2=~i2;
m=bwperim(i2);figure,imshow(m);
e=length(B);
labeledImage = bwlabel(i2, 8);
blobMeasurements = regionprops(labeledImage, i1, 'all');
imshow(i2)
hold on
set(gcf, 'Position', get(0, 'ScreenSize'));
for k = 1:e
boundary = B{k};
plot(boundary(:,2), boundary(:,1), 'g', 'LineWidth', 0.2)
end
%i get this plot format. please help how to convert into matlab readable format because i can not do next processing**

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回答（3 个）

Walter Roberson
Walter Roberson 2012-10-9
Perhaps you want to poly2roi() ?
  1 个评论
Walter Roberson
Walter Roberson 2012-10-9
[x,y] coordinate values for the boundary are already in B{k} for each k.
If you want the all together in one array, but without any indication of where any of the boundaries ends, use
vertcat(B{:})

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senthil kumar
senthil kumar 2012-10-9
if true
just save separate and the object.please help me
end
Image Analyst
Image Analyst 2012-10-10
You never defined B. It looks like it should have come from a call to bwboundaries(i2). See my tutorial for an example: http://www.mathworks.com/matlabcentral/fileexchange/25157-image-segmentation-tutorial-blobsdemo

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