remove_edge_objects.m

function cleaned_binary = remove_edge_objects(threshed_image)

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% Setup variables and parse command line
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i_p = inputParser;

i_p.addRequired('threshed_image',@(x)isnumeric(x) || islogical(x));

i_p.parse(threshed_image);

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% Main Program
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edge_border = ones(size(threshed_image));
edge_border = bwperim(edge_border);

[row_indexes,col_indexes] = ind2sub(size(threshed_image), find(edge_border));
edge_objects = bwselect(threshed_image,col_indexes,row_indexes,4);

cleaned_binary = threshed_image & not(edge_objects);