remove the white object using filter2

31 Dec 2011
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how to remove the white object of grayscale image using filter2

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Image Analyst
Image Analyst on 31 Dec 2011

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Define "remove." Do you want to extract the bounding box into its own image? If so, see my BlobsDemo http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862 Or do you want to set all pixels values of 255 to 0 or nan?

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Diah Mcfdz
Diah Mcfdz on 31 Dec 2011
i have image with RGB (1 1 1), RGB (0 0 0), RGB(0.478 0.478 0.478).how to eliminate RGB (1 1 1) from the image, so i only have image with RGB( 0 0 0) RGB(0.478 0.478 0.478)
Image Analyst
Image Analyst on 31 Dec 2011
Which color should the 1,1,1 pixels get set to? 0,0,0, or .478,.478,.478?
rgbImage(rgbImage==1) = 0; % Or 0.478 whichever you want.

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