Binary table - counting bits in rows
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Henry Buck
el 15 de Sept. de 2015
Editada: Star Strider
el 15 de Sept. de 2015
Hi,
How can I print only the rows that have only two '1' bits in rows? like this one:
0 0 1 1
0 1 0 1
0 1 1 0
1 0 0 1
1 0 1 0
1 1 0 0
Thanks, Henry
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Thorsten
el 15 de Sept. de 2015
table= dec2bin(0:(2^4-1)) - '0';
Nones = sum(table, 2);
table(Nones==2, :)
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Image Analyst
el 15 de Sept. de 2015
table is a reserved word for a special data type in MATLAB so I would pick another variable name.
When you said "two '1' bits in rows" and gave this "0 0 1 1 0 1 0 1 0 1 1 0 1 0 0 1 1 0 1 0 1 1 0 0" (just a single row), I thought you meant "two 1's in a row", meaning two 1's that were consecutive/adjacent, so that's what my code did.
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Image Analyst
el 15 de Sept. de 2015
Do you have the Image Processing Toolbox? If so, it's simple to just call regionprops on each row and measure the lengths of all 1 segments. If any of the lengths = 2, then print that row with fprintf(), like this untested code:
for row = 1 : rows
thisRow = m(row, :);
labeledData = bwlabel(thisRow); % Identify each separate segment.
measurements = regionprops(labeledData, 'Area');
allLengths = [measurements.Area];
% See if any of the stretches of 1's are 2 in length
if any(allLengths == 2)
fprintf('%d ', thisRow);
fprintf('\n');
end
end
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