MATLAB: Please how to calculate the number of 1 and 0 in each position in a binary vector

vectorvectorization

For example my vector is like this: Vector = 00000001111000000000111111100000000000000011111111

I want to calculate the number of 0 in each position and the number of 1 in each position like 7zeros4ones9zeros7ones…..

Please need help

Best Answer

Try this

str = '00000001111000000000111111100000000000000011111111';
x = diff([0 find(diff(str-'0')) numel(str)])

Result

>> x
x =
     7     4     9     7    15     8

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If you have the Image Processing Toolbox (type ver to check), then regionprops will compute the number of elements in each connected group of 1's for you:

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regionprops() is very robust and accurate and well tested.

Best Answer

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