How can i convert this binary image to black background image?

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vinith
vinith 2015-1-17
评论： Image Analyst 2015-1-22
i require the attached image in this format

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Image Analyst
Image Analyst 2015-1-17
vinith, this must be a class project or something from a text or else you're on the same project as Abdur Rahmaan, because I gave him complete code in this Answer http://www.mathworks.com/matlabcentral/answers/168170#answer_163355.
The way you're approaching it, with edge detection, is not the way I'd do it. I'd use color segmentation.
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Image Analyst
Image Analyst 2015-1-22
Do you have the images yet? If you're having trouble finding black velvet where you live, then just use black construction paper.

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Matt J
Matt J 2015-1-17
编辑：Matt J 2015-1-17
A=imread('http://www.mathworks.com/matlabcentral/answers/uploaded_files/24029/untitled%201.jpg');
A=rgb2gray(A);
BW=A<10;
result = imfill(BW,'holes')&~BW;

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