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How to delete objects in binary image?

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Gytis Raudonius
Gytis Raudonius 2016-3-17
回答： Image Analyst 2016-3-17
hi, i working on ANPR so question is how i can delete object from binary, or how can i store object what i need, i have speciment of number plates, and i resize image to [250 ], other question is if after treshold i dont have any object in picture can i change level automatic if no objets, and rise level util left just one i need?

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Image Analyst
Image Analyst 2016-3-17
You can use ismember() to select blobs to extract based on their label number
labeledImage = bwlabel(binaryImage);
% Get rid of blobs # 1, 3, and 5
newBinaryImage = ismember(labeledImage, [1,3,5]) > 0;
Or you can use the bwselect() function. See its documentation.

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